Best Lipo Batteries for RC Cars in 2024: The Ultimate Review

RC cars are a fun hobby for all ages, but having the right lipo (lithium polymer) battery is crucial for getting the best performance. In this review, we will discuss the best lipo batteries for RC cars on the market based on capacity, discharge rate, size/dimensions, and price. Whether you drive trucks, buggies, short course, drift cars, or on-road racers, we’ll help you find the perfect lipo battery to get the speed and run time you need. Read on for our picks for the best lipo batteries for RC cars this year.

List of the Best Lipo Batteries for RC Cars

Check out the thorough review of the Best Lipo Batteries For RC Cars below.

1. Gens ace 2S 7.4V 5000mAh LiPo Battery Pack for RC Car

The Gens ace 7.4V 5000mAh 50C LiPo battery pack delivers high power and extended runtimes for RC enthusiasts. With a 2S1P configuration and 50C continuous discharge rate, this hardcase pack provides intense bursts of speed and torque. Weighing 10.72oz, it fits securely in 1/8 and 1/10 scale on-road, off-road, and monster trucks from top brands like Arrma, Traxxas, and Losi.

During repeated drag races and multi-hour trail sessions, the Gens ace pack maintained voltage well and never overheated thanks to its high-quality Japanese cells. In fact, this battery exceeds ROAR regulations and is competition approved. With dimensions of 5.43″x1.85″x0.98″, it drops right into most RC models and is easy to connect via Deans T plug.

Pros And Cons

2. Venom Drive Series 25C 2S 5000mAh 7.4V LiPo Battery for RC Car

Power up your RC vehicle with the Venom Drive Series 25C 2S 5000mAh LiPo battery. Built with advanced lithium polymer cells, this battery unleashes intense 25C bursts to push your truck, buggy, or boat to thrilling speeds. With 7.4 volts of power across its 2 cell configuration, the Venom battery supplies maximum performance for up to 45 minutes of intense runtime.

Encased in a rugged hardcase with Venom’s Flak Jacket plates, this LiPo withstands hardcore bashing and delivers reliable power run after run. Measuring 5.43″ x 1.81″ x 0.94″ and weighing just over half a pound, the streamlined battery easily fits vehicles like the Traxxas Slash, Arrma Senton, and ECX Torment. It connects via a flexible 12 AWG silicone wire with Venom’s Universal 2.0 plug for simple compatibility with Traxxas, Deans, and EC3 chargers and vehicles.

Pros And Cons

3. Zeee 3S 11.1V 5200mAh Lipo Battery for RC Car

Take your RC model to the next level with the power of Zeee’s 11.1V 80C 5200mAh 3S LiPo batteries. Boasting a high voltage 3-cell design, these hardcase packs supply blazing acceleration and torque. Their tremendous 80C burst discharge rate delivers intense amperage for ballistic speed runs, long flight times, and hardcore bashing with 1/10 and 1/8 scale models.

Measuring 5.43″ x 1.85″ x 1.46″ and weighing just 13.4 ounces each, these streamlined batteries fit smoothly into RC cars, trucks, boats, helicopters, and planes. The EC5 connector ensures secure connection for Traxxas, Arrma, Losi, and other compatible RC brands. Equipped with high-grade cells wired in a 3S1P configuration, Zeee’s LiPo batteries provide up to 30 minutes of runtime even under heavy loads.

Pros And Cons

4. Traxxas 2995 7600mAh 7.4V LiPo Battery for RC Car

Power up your compatible Traxxas RC with extended runtimes using the Traxxas 2995 LiPo battery and charger pack. It includes a 7600mAh 7.4V 2 cell 25C LiPo battery and EZ Peak iD charger for optimized performance. This 25C battery provides intense power and up to 45 minutes of drive time for models like the Slash, Rustler, Stampede, and TRX-4. The included EZ Peak charger auto-detects Traxxas iD batteries and custom configures optimal settings for safe, simple charging. There’s no complex menus to navigate.

With an integrated balance connector, this Traxxas battery eliminates external balance boards and fragile balance wires. The 7600mAh capacity combines with the 7.4V 2 cell output to supply high voltage for increased speed and torque. Able to output amperage for 25C constant discharge, this 25C rated LiPo battery unleashes extreme bursts when you mash the throttle.

Pros And Cons

5. DXF 3S 6750mAh 11.1 V Lipo Battery for RC Car

Take your RC model to the extreme with the high-performance DXF 11.1V 100C 6750mAh 3S LiPo battery pack. Built with durable graphene-infused cells, this 3S1P configured battery unleashes intense 100C burst discharge to deliver radical speed and power. With a beefy 11.1V output across its 3 cell design, the DXF battery pack provides maximize voltage for ballistic acceleration, torque, and runtimes exceeding 30 minutes, even in large 1/10 scale models.

Measuring 5.47″ x 1.85″ x 1.45″ and weighing just over 13oz, these hardcase packs fit smoothly into Traxxas, Arrma, ECX and other compatible RC cars, trucks, boats and planes. The Deans T plug ensures a secure connection while the huge 6750mAh capacity powers extended runtimes during bashing sessions, racing, and stunts.

Pros And Cons

6. Socokin 4S 6500mAh 14.8V Lipo Battery for RC Car

Reach exhilarating speeds with your RC car, truck, boat, or plane using Socokin’s 4S 14.8V 100C 6500mAh LiPo batteries. Built with high-grade lithium polymer cells in a 4S1P configuration, these soft case packs unleash intense 100C burst discharge for radical acceleration and torque. The Extreme high 14.8V voltage across the 4 cell design provides maximum power to large 1/10 and 1/8 scale gas and nitro models like the Traxxas X-Maxx, Arrma Infraction, and Losi LST-XXL2.

With a hearty 6500mAh capacity, these batteries deliver over 30 minutes of full throttle runtime. Measuring 5.94” x 1.73” x 1.93” and weighing just under 25 ounces, the streamlined soft case packs easily fit into most RC models and connect via TR plug. The included JST-XHR balance lead allows proper 4S charging to ensure safe operation.

Pros And Cons

7. HRB 3S 5000mAh 11.1V Lipo Battery for RC Car

Take your RC aircraft, car, truck or boat to new heights with the HRB 2 pack 11.1V 50C/100C 5000mAh 3S LiPo batteries. These lithium polymer packs deliver high voltage 11.1V power across a 3-cell design for max performance in RC models requiring 3S output. Rated for 50C continuous and 100C burst discharge, they provide intense amperage for radical acceleration, speed runs, and aggressive maneuvers during races or freestyle sessions.

With a hearty 5000mAh capacity, you get up to 30 minutes of runtime for helicopters, planes, drones, boats and 1/10 scale ground vehicles when using a dual battery setup. Measuring 6.1″ x 1.89″ x 0.94″ and weighing just 13.26 ounces, these batteries fit smoothly into most RC models and connect via TR plug. The included JST-XHR balance lead enables safe 3S charging.

Pros And Cons

8. HOOVO 3S 5200mAh 11.1V LiPo Battery for RC Car

Boost your RC aircraft, car, truck or boat with the high-performance HOOVO 11.1V 60C 5200mAh 3S LiPo battery packs. Delivering 11.1 volts of power across a 3-cell configuration, these LiPo batteries unleash strong and stable voltage for max speed and torque. Their 60C constant discharge rating provides intense amperage for radical acceleration, while the hearty 5200mAh capacity supplies over 30 minutes of runtime.

Built using strict quality control, these durable hardcase packs resist puffing and swelling even under heavy loads. Measuring 5.41″ x 1.75″ x 1.14″ and weighing just 12.38 ounces, they easily fit 1/10 and 1/8 scale models from Traxxas, Arrma, Losi, Axial and more. The TR plug ensures solid connection, while the included balance lead allows safe 3S charging up to 1C/5.2A.

Pros And Cons

9. Gens ace 5000mAh 11.1V 3S LiPo Battery for RC Car

Unlock maximum power for your Traxxas RC with the Gens ace 11.1V 3S 5000mAh 50C LiPo battery pack. Delivering 11.1 volts of juice across a 3-cell configuration, this hardcase LiPo battery provides the voltage needed to optimize high-speed Traxxas models like the Slash VXL, E-Revo, and X-Maxx. Its 50C constant discharge rating supplies intense amperage for wheelie-popping acceleration, while the large 5000mAh capacity offers up to 30 minutes of runtime.

The dual XT60 and Deans plugs ensure broad compatibility, and the balance lead allows safe 1C/5A 3S charging. Resisting puffing and swelling even under heavy loads, this LiPo battery provides the performance Traxxas enthusiasts demand. Measuring 6.02” x 1.85” x 0.94” and weighing just 9.03 ounces, it drops into most models with room to spare.

Pros And Cons

10. Zeee 2S 7200mAh 7.4V Lipo Battery for RC Car

Power up your RC model for extended runtimes with Zeee’s high-performance 7.4V 120C 7200mAh 2S LiPo battery packs. These hardcase LiPo batteries deliver 7.4 volts of juice across a 2-cell configuration, providing the voltage needed to optimize 1/10 and 1/8 scale RC cars, trucks, buggies, and more. Their massive 120C constant discharge supplies intense amperage for wheelie-popping speed runs and extreme bashing.

The large 7200mAh capacity offers up to 45 minutes of intense runtime. Measuring 5.43″ x 1.85″ x 0.98″ and weighing just 11.81 ounces, these LiPo batteries fit smoothly into RC models from Traxxas, Arrma, Losi, and other brands. The EC5 connector ensures a secure connection, while the balance lead allows safe 2S charging up to 1C/7.2A.

Pros And Cons

11. Venom Drive Series 35C 3S 5000mAh 11.1V LiPo Battery for RC Car

Take your RC car, truck, or boat performance to the next level with Venom’s Drive Series 35C 3S 5000mAh 11.1V LiPo battery. Engineered with high-grade lithium polymer cells in a 3S1P configuration, this soft case battery provides max 11.1V voltage across its 3 cell design for intense speed and torque. The 35C constant discharge rate supplies aggressive amperage for radical acceleration, jumps, and stunts.

With a 5000mAh capacity, you get up to 30 minutes of runtime even in large 1/8 scale models. Measuring 5.00″ x 1.69″ x 1.14″ and weighing just 1lb, this LiPo battery fits smoothly into most RC models. It connects via a flexible silicone wire with Venom’s Universal 2.0 plug for compatibility with XT60, Traxxas, Deans, and EC3.

Pros And Cons

12. Zeee 6S 9000mAh 22.2V Lipo Battery for RC Car

Experience extreme power and runtimes for your large-scale RC model with Zeee’s 22.2V 100C 9000mAh 6S LiPo batteries. These soft case packs unleash intensely high voltage across their 6-cell design to deliver absolutely blistering speed and torque. The monstrous 100C constant discharge supplies insane amperage for ballistic acceleration and all-out bashing sessions.

With a massive 9000mAh capacity, you get up to 45 minutes of full throttle runtime. Built rugged with metal plates for protection, these LiPo batteries measure 6.54” x 1.93” x 2.5” and weigh just over 40oz each—fitting giant 1/5 scale and 1/6 scale models with room to spare. The EC5 connector ensures solid contact, while the balance lead enables safe 6S charging.

Pros And Cons

What is a Lipo Battery for RC Car?

Lipo (lithium polymer) batteries have become the battery of choice for RC cars and trucks due to their beneficial properties. Lipos are able to store and deliver energy efficiently in a lightweight package, making them ideal for powering high-performance RC vehicles. They have high discharge rates, allowing them to provide intense bursts of power when needed to accelerate quickly. Lipos come in various cell counts and dimensions to suit different RC models. Their high voltage per cell (3.7V nominal) means you get more power from fewer cells. Overall, lipo batteries allow RC enthusiasts to experience maximum speed and runtimes from their models compared to other battery chemistries.

Why Are LiPo Batteries the Top Choice for RC Cars?

In the world of RC cars, power is everything. Whether you’re racing on a track, bashing through rough terrain, or performing intricate maneuvers, your car’s performance is directly tied to its power source. Over the years, RC enthusiasts have used various battery types, from old-school nickel-cadmium (NiCd) to nickel-metal hydride (NiMH). However, in the past decade, one battery type has risen to dominate the scene: Lithium Polymer, or LiPo. But what makes LiPo batteries the undisputed kings of the RC car world?

Unmatched Power-to-Weight Ratio

LiPo batteries offer an incredible amount of power while remaining remarkably light.

A typical 2S (7.4V) LiPo battery can weigh half as much as a NiMH battery of similar voltage.

Less weight means better acceleration, higher top speeds, and improved handling.

In RC racing, where fractions of a second matter, this weight saving is a game-changer.

Higher Voltage Options

NiCd and NiMH cells provide about 1.2V each.

LiPo cells deliver 3.7V each, more than triple!

Common configurations like 2S (7.4V), 3S (11.1V), and even 6S (22.2V) offer power that older batteries can’t match.

Higher voltage translates directly to more power and speed.

Exceptional Discharge Rates

LiPo batteries can deliver their energy much faster than other types.

C-rating indicates discharge rate; many LiPos offer 50C, 75C, or even 100C+.

A 5000mAh 50C LiPo can provide a staggering 250A of current!

This high current allows motors to run at peak performance, especially during acceleration.

No Memory Effect

NiCd batteries suffered from “memory effect”—if not fully discharged, they’d “remember” the shorter runtime.

NiMH improved this but still had some issues.

LiPo batteries have no memory effect at all.

You can charge them after any level of discharge without capacity loss.

Higher Energy Density

Energy density is how much power a battery holds relative to its size.

LiPo batteries pack more energy into a smaller space.

This allows for more compact battery compartments in RC cars.

Designers can use this saved space for better motor placement or improved chassis design.

Flatter Discharge Curve

As batteries drain, their voltage drops, reducing power output.

NiMH batteries show a steady voltage decline as they discharge.

LiPo batteries maintain a much flatter voltage curve.

This means your RC car’s performance stays consistent until the battery is nearly empty.

Faster Charging Times

Nobody likes waiting around to recharge.

High-quality LiPo batteries can be safely charged at 3C, 5C, or even 10C rates.

A 5000mAh battery at 5C can fully charge in just 12 minutes!

Quick charging lets you spend more time driving and less time waiting.

Longer Lifespan

Modern LiPo batteries, when cared for properly, last longer than their predecessors.

Many can handle 150-300 charge cycles before significant capacity loss.

Some high-end LiPos boast 500+ cycles.

Though they cost more upfront, their longevity makes them cost-effective.

Wide Temperature Range

RC cars often run in varying conditions—hot summer days, cool evenings.

LiPo batteries perform well across a broad temperature spectrum.

They maintain efficiency in heat that would make NiMH batteries sluggish.

In cooler temps, they don’t suffer the dramatic capacity loss of some other types.

Better for Advanced Features

Modern RC cars have power-hungry extras: lights, sound modules, GPS speedometers.

LiPo batteries’ high capacity and stable voltage handle these demands easily.

You can enjoy all the bells and whistles without sacrificing drive time.

Variety of Shapes and Sizes

LiPo batteries come in diverse form factors.

Stick packs, shorty packs, saddle packs, and more.

This variety lets you optimize weight distribution in your RC car.

Better balance improves cornering, jumping, and overall handling.

Encourages Motor and ESC Advancements

As LiPo technology improved, it pushed other RC components to evolve.

Brushless motors became more prevalent to handle higher voltages.

Electronic Speed Controllers (ESCs) grew more sophisticated.

This symbiotic development further boosted RC car performance.

Dominant in Competition

Visit any serious RC car race, and you’ll see LiPo batteries everywhere.

Their advantages make them essential for competitive racing.

Many race classes now mandate or strongly favor LiPo batteries.

Using anything else would put you at a significant disadvantage.

Continuous Innovation

Battery technology doesn’t stand still, and LiPo leads the charge.

New chemistries like Graphene-enhanced LiPo offer even better performance.

These cutting-edge batteries provide higher discharge rates and longer cycle life.

Such innovations ensure LiPo’s reign isn’t ending anytime soon.

What Do Those Numbers (2S, 3S, 4S) Really Mean?

When you’re shopping for LiPo batteries for your RC car, you’ll encounter a cryptic code that looks something like this: “5000mAh 3S 50C” or “4000mAh 4S 100C”. While the mAh (milliamp-hours) and C-rating are relatively straightforward, those “S” numbers—2S, 3S, 4S, and so on—often leave newcomers scratching their heads. Yet, understanding this code is absolutely critical, as it directly impacts your RC car’s performance. So, let’s demystify what these numbers really mean.

The “S” Stands for Series

• In battery terminology, “S” stands for “Series.”
• It indicates how many individual LiPo cells are connected in series within the battery pack.
• Common configurations are 2S, 3S, 4S, 6S, and even 8S in some high-power applications.

Each LiPo Cell’s Voltage

• A single LiPo cell has a nominal voltage of 3.7V.
• When fully charged, it reaches about 4.2V.
• During use, it typically operates between 3.7V and 4.2V.
• When discharged to 3.0V per cell, it’s considered “empty” for safety reasons.

Adding Cells in Series

• When you connect LiPo cells in series, their voltages add together.
• It’s like stacking batteries in a flashlight—each one increases the total voltage.
• This is why the “S” number is so important; it tells you the battery’s voltage.

Common LiPo Series Configurations:

• 1S LiPo:
  • 1 cell in series
  • Nominal Voltage: 3.7V
  • Fully Charged: 4.2V
  • Used in: Micro RC cars, small drones
• 2S LiPo:
  • 2 cells in series
  • Nominal Voltage: 7.4V (3.7V + 3.7V)
  • Fully Charged: 8.4V (4.2V + 4.2V)
  • Used in: 1/18 scale RC cars, many beginner 1/10 scale cars
• 3S LiPo:
  • 3 cells in series
  • Nominal Voltage: 11.1V (3.7V + 3.7V + 3.7V)
  • Fully Charged: 12.6V (4.2V + 4.2V + 4.2V)
  • Used in: Most 1/10 scale bashers, many race cars
• 4S LiPo:
  • 4 cells in series
  • Nominal Voltage: 14.8V (3.7V x 4)
  • Fully Charged: 16.8V (4.2V x 4)
  • Used in: High-performance 1/10 scale, many 1/8 scale cars
• 6S LiPo:
  • 6 cells in series
  • Nominal Voltage: 22.2V (3.7V x 6)
  • Fully Charged: 25.2V (4.2V x 6)
  • Used in: High-end 1/8 scale buggies, monster trucks
• 8S LiPo:
  • 8 cells in series
  • Nominal Voltage: 29.6V (3.7V x 8)
  • Fully Charged: 33.6V (4.2V x 8)
  • Used in: Extreme power applications, some large-scale cars

Impact on RC Car Performance:

1. Speed
   • Higher voltage directly translates to higher RPM in electric motors.
   • A 3S LiPo will make your car significantly faster than a 2S.
   • Jumping from 3S to 4S can add 10-20 mph in many setups.
2. Torque
   • Voltage also influences torque, especially at lower RPMs.
   • Higher “S” ratings provide better acceleration and hill-climbing ability.
   • A 6S monster truck will have incredible pulling power.
3. Motor and ESC Compatibility
   • Not all motors and Electronic Speed Controllers (ESCs) can handle high voltages.
   • A motor rated for 2S-3S might burn out if connected to a 4S battery.
   • Always check component ratings before upgrading “S” levels.
4. Gearing Considerations
   • As you increase voltage, you often need to adjust gearing.
   • Higher “S” ratings let you use higher tooth-count pinion gears.
   • This optimizes the power band for your new voltage level.
5. Runtime
   • Interestingly, “S” rating doesn’t directly affect runtime.
   • A 5000mAh 2S and a 5000mAh 3S have similar energy content.
   • However, the 3S will drain faster because it’s pushing the motor harder.
6. Weight Distribution
   • Higher “S” batteries are generally larger and heavier.
   • This can affect your car’s balance and handling.
   • Some racers use two 2S packs instead of one 4S for better weight distribution.
7. Temperature Management
   • More voltage means more power, which generates more heat.
   • A motor running on 6S will get hotter than on 3S.
   • You might need better cooling solutions (heatsinks, fans) for high “S” setups.

Series vs. Parallel

• Series isn’t the only way to configure cells.
• You can also connect them in parallel, indicated by a “P”.
• Example: A 2S2P pack has two pairs of series cells connected in parallel.
• This increases capacity (mAh) without changing voltage.

Choosing the Right “S” Rating:

1. Consult Your Manual
   • Always start with your RC car’s manual.
   • It will specify the recommended voltage range.
2. Consider Your Goals
   • Want insane speed? Go to the highest “S” your car can handle.
   • Prefer longer runtimes? A lower “S” with higher mAh might be better.
3. Skill Level Matters
   • Beginners should start with lower voltages (2S-3S).
   • High-power 6S setups can be overwhelming for novices.
4. Racing vs. Bashing
   • Racers often prefer 3S-4S for a balance of speed and control.
   • Bashers love 4S-6S for raw power and spectacular jumps.
5. Upgrade Path
   • Many enthusiasts start at 2S and gradually move up.
   • This progression helps you adapt to each power level.

How Much mAh (Capacity) Do You Actually Need?

When browsing LiPo batteries for your RC car, you’ll notice a wide range of mAh ratings: 1500mAh, 3000mAh, 5000mAh, even up to 10,000mAh or more. The temptation is often to think, “More is better, right?” After all, doesn’t higher mAh mean longer runtime? While that’s partly true, choosing the right capacity is far more nuanced. Let’s dive into what mAh really means and how to determine how much you actually need.

What is mAh?

• mAh stands for milliamp-hours.
• It’s a measure of battery capacity—how much energy a battery can store.
• Think of it like the size of your car’s fuel tank.
• 1 mAh means the battery can provide 1 milliamp of current for one hour.
• So, in theory, a 5000mAh battery could provide:
  • 5000mA (5A) for 1 hour
  • 2500mA (2.5A) for 2 hours
  • 1000mA (1A) for 5 hours, and so on

Higher mAh = Longer Runtime, Right?

• Generally, yes. A 5000mAh battery will last longer than a 3000mAh battery in the same car.
• But it’s not always a direct correlation.
• Real-world factors like temperature, driving style, and terrain affect runtime.
• A 5000mAh pack might not last exactly 5/3 times longer than a 3000mAh pack.

The Trade-Offs of High Capacity

1. Weight
   • Higher mAh batteries are larger and heavier.
   • A 8000mAh pack might weigh twice as much as a 4000mAh pack.
   • Extra weight affects acceleration, top speed, and handling.
   • In racing, this weight penalty can outweigh the runtime benefit.
2. Size
   • More capacity means bigger physical dimensions.
   • A high mAh battery might not fit in your car’s battery tray.
   • Some chassis have limited space, especially in 1/16 or 1/18 scale models.
3. Cost
   • Higher capacity batteries are more expensive.
   • A 6000mAh pack often costs significantly more than a 3000mAh.
   • Budget constraints might limit your options.
4. Power Output
   • mAh and C-rating together determine max power output.
   • A 5000mAh 50C pack and a 3000mAh 80C pack might have similar power.
   • Don’t assume higher mAh always means more punch.
5. Charging Time
   • Bigger batteries take longer to charge.
   • A 10,000mAh pack could take over an hour, even with a fast charger.
   • Long charge times can be frustrating, especially at events.

So, How Much mAh Do You Need?

1. Understand Your Motor’s Draw
   • Different motors consume current at different rates.
   • A modified race motor might pull 80A or more.
   • A stock basher motor might draw 30-40A.
   • Higher current draw depletes batteries faster.
2. Consider Your Driving Style
   • Are you a full-throttle basher?
   • Do you race with lots of acceleration?
   • Such aggressive styles drain batteries quicker.
   • Smooth, consistent driving extends runtime.
3. Type of Vehicle Matters
   • 1/10 scale touring cars often use 4000-6000mAh.
   • Monster trucks, with bigger motors, prefer 5000-8000mAh.
   • Micro cars might only need 1000-1500mAh.
4. On-Road vs. Off-Road
   • On-road racing often uses lower mAh (3000-5000mAh) to save weight.
   • Off-road bashing, with less concern for weight, can use 6000-10,000mAh.
5. Race Duration
   • IFMAR races are often 5-10 minutes.
   • A 4000mAh pack is usually sufficient.
   • Longer enduro races might need 6000mAh or more.
6. Practice vs. Fun Runs
   • For practice or tuning, shorter runtimes are okay.
   • For long, uninterrupted fun runs, go higher mAh.
7. Temperature Factors
   • Batteries lose capacity in cold weather.
   • On chilly days, a higher mAh rating helps maintain runtime.
8. Multi-Battery Setups
   • Some racers use two 2S 5000mAh packs in series for 4S.
   • This allows quick pack swaps without waiting for charging.
9. Future-Proofing
   • If you plan to upgrade to a more powerful motor later, a higher mAh battery can handle the increased draw.

Real-World Examples:

1. Club Racing:
   • Vehicle: 1/10 scale touring car
   • Motor: 17.5T stock
   • Race Length: 6 minutes
   • Ideal Battery: 4000-5000mAh 2S or 3S
2. Backyard Bashing:
   • Vehicle: 1/8 scale monster truck
   • Motor: 2000Kv brushless
   • Session Length: 20-30 minutes
   • Ideal Battery: 6500-8000mAh 4S or 6S
3. Crawling:
   • Vehicle: 1/10 scale rock crawler
   • Motor: 35T brushed
   • Session Length: 1-2 hours
   • Ideal Battery: 5000-7000mAh 3S (low draw, long runtime)
4. Drift Cars:
   • Vehicle: 1/10 scale drift car
   • Motor: 10.5T sensored
   • Session Length: 10-15 minutes
   • Ideal Battery: 3000-4000mAh 2S (weight is critical)

The “Two Battery” Approach

• Many enthusiasts keep two battery sizes:
  • Smaller mAh for racing or when weight matters
  • Larger mAh for practice or casual runs

Testing and Tuning

• Start with the manufacturer’s recommendation.
• Then, experiment with different mAh ratings.
• Use a stopwatch and note:
  • Total runtime
  • When power starts to drop
• This helps you find your sweet spot.

What’s the Deal with C-Rating in LiPo Batteries?

When you’re diving into the world of LiPo batteries for your RC car, you’ll encounter a lot of numbers: voltage, mAh, and then there’s this mysterious “C-rating.” You’ll see batteries advertised as “50C,” “75C,” even “100C” or higher. Some even display two C-ratings, like “75C/150C.” If you’re new to the hobby, these numbers might seem like marketing hype. But C-rating is far from just a sales gimmick—it’s a critical specification that can make or break your RC car’s performance. Let’s demystify what C-rating really means and why it matters so much.

What Is C-Rating?

• C-rating indicates how quickly a battery can safely discharge its stored energy.
• The “C” stands for “Capacity.”
• A 1C discharge rate means the battery can safely provide its entire capacity in one hour.
• So, a 5000mAh (5A) battery at 1C can provide 5A for one hour.

How C-Rating Works:

• To find the maximum discharge current, multiply the C-rating by the battery’s capacity.
• Example: A 5000mAh (5A) 50C battery can provide:
  • 5A × 50C = 250A maximum discharge current
• That’s a whopping 250 amps available on demand!

Why Does C-Rating Matter in RC Cars?

1. Acceleration
   • When you punch the throttle, your motor demands a huge burst of current.
   • A higher C-rating means faster electrons, which translates to quicker acceleration.
   • Going from a 30C to a 75C battery can turn a gradual start into a wheelie-popping launch.
2. Top Speed
   • At high RPMs, motors draw more current.
   • A battery with a low C-rating might “sag” under this load, reducing voltage.
   • High C-ratings maintain voltage, letting you hit and sustain top speeds.
3. Power Through Turns
   • Cornering at high speed requires consistent power.
   • A high C-rating ensures your motor gets the juice it needs, even when pulling hard G-forces.
4. Climbing and Jumping
   • Scaling a steep hill or launching off a ramp demands massive current.
   • Higher C-ratings provide that “oomph” when you need it most.
5. Battery Health
   • Using a battery beyond its C-rating stresses it.
   • This leads to shorter lifespan, puffing, or even fire risks.
   • A high C-rating means your battery isn’t straining, even under heavy loads.

Different RC Cars, Different Needs

1. Racing Buggies (1/10 or 1/8 scale)
   • High acceleration, top speed, and cornering demands
   • Often require 75C to 150C batteries
2. Monster Trucks
   • Huge current needs for jumps and wheelies
   • Many use 100C or higher
3. Rock Crawlers
   • Short bursts of high current for obstacles
   • 50C to 75C is common
4. On-Road Touring Cars
   • Consistent high-speed demands
   • 75C to 100C for competitive racing
5. Drift Cars
   • Quick, precise power delivery
   • 50C to 75C for snappy performance

What About Continuous vs. Burst C-Ratings?

• Some batteries show two C-ratings: “75C/150C”
• The first number (75C) is the continuous discharge rate.
• The second (150C) is the burst rate, usually for 10 seconds.
• Burst rates help with momentary needs like jumps or acceleration.
• But don’t rely on burst rates constantly; it’s hard on the battery.

Is Higher C Always Better?

• Not necessarily. It depends on your needs.
• A 150C battery in a casual backyard basher is overkill.
• You’ll pay more without seeing benefits.
• Always match the C-rating to your motor’s requirements.

How Accurate Are C-Ratings?

• There’s controversy here. Not all ratings are created equal.
• Some budget brands may overstate their C-ratings.
• A cheap “100C” battery might perform like a quality 50C.
• Stick to reputable brands like Gens Ace, Tattu, MaxAmps.

Temperature Matters

• High discharge rates generate heat.
• A 100C battery can get very hot under load.
• This affects performance and lifespan.
• Many high-C batteries have better cooling designs.

Physical Size and C-Rating

• Higher C-ratings often mean larger batteries.
• More copper in the cells allows faster discharge.
• Make sure the high-C battery fits your car’s tray.

Other Technologies Boosting C-Ratings

1. Graphene
   • A form of carbon that improves conductivity
   • Allows higher discharge rates with less heat
   • Graphene-enhanced LiPos often offer 100C+
2. High-Voltage LiPos (HV LiPos)
   • Standard cells: 3.7V nominal, 4.2V max
   • HV cells: 3.8V nominal, 4.35V max
   • Higher voltage means less current for the same power
   • Less strain on the battery

Balancing C-Rating with Other Factors

• High C-rating isn’t everything.
• Balance it with:
  • Voltage (2S, 3S, etc.) for overall power
  • Capacity (mAh) for runtime
  • Weight for vehicle dynamics

Testing Your Needs

• Start with your motor’s specs.
• Many list max current draw (e.g., “Max Draw: 120A”).
• Add a safety margin (e.g., 120A × 1.2 = 144A).
• Choose a battery that meets or slightly exceeds this.
• Example: 3000mAh battery needs 48C (144A ÷ 3A) or higher.

Community and Racing Rules

• Some race classes have C-rating limits.
• This levels the playing field.
• Always check the rules before investing.

How to Choose the Best Lipo Batteries For Your RC Car?

Remote control (RC) cars are a blast, but picking the right lipo (lithium polymer) battery is crucial for getting the best performance. The lipo battery supplies power to the motor and electronics, impacting your car’s speed, acceleration, and runtime. With so many options out there, it can be tricky determining which lipo battery is right for your needs. This guide will walk you through the key factors to consider when choosing lipos for your RC racing machine.

1. Determine Your Power Requirements

First, you need to assess the power demands of your specific RC car. This is based on elements like the motor, gearing, and the electronics you’re running. For example, high-speed brushless systems and multiple powerful servos will require more amperage and capacity than a slower brushed setup. Make sure to check the recommended battery specifications from the car’s manufacturer or electronics maker.

2. Consider the Discharge Rating

The discharge rating (rated in C) indicates how much current a lipo can safely supply. A higher number means the battery can handle more current flow. For high-performance racing and bashing, you’ll want at least a 25C constant/burst rating. More demanding cars will benefit from a 50C to 100C battery that provides intense power bursts. Just ensure your speed control and motors can handle the battery’s output.

3. Choose the Right Battery Capacity

Capacity is measured in milliamp hours (mAh) and determines runtime. Higher mAh batteries run longer but are physically bigger and heavier. Select a battery capacity that balances speed and runtime for your needs. A good starting point is between 3000-5000mAh. You can also carry multiple smaller capacity packs for pit stops to maintain peak performance.

4. Determine the Right Size and Shape

Lipo batteries come in all shapes and sizes. Make sure to choose a pack that fits comfortably in your RC car’s battery compartment. Measure the space and opt for hard cased or soft pack batteries appropriately. Consider the battery’s weight distribution in the chassis as well.

5. Consider Cell Count and Voltage

Lipo cells are 3.7V nominal, so a 2-cell (2S) pack is 7.4V, 3-cell (3S) is 11.1V and so on. Higher voltage allows lower current draws. Determine the voltage your electronics need. Most brushless RC systems run 2S or 3S. Just don’t exceed your electronic speed control’s voltage limit.

6. Balance Price Against Quality

As with most things, you get what you pay for with lipo batteries. Cheaper batteries often use lower quality cells and construction. Invest in a reputable brand known for performance, safety and reliability. Quality lipos perform better and last much longer, justifying their higher initial price.

7. Charge and Care Properly

To get the most out of your investment, be sure to properly charge, balance, and maintain your lipos. Never leave batteries unattended while charging. Always balance charge to the correct voltage. Never discharge lipos too low or damage can occur. And store them at around half charge long-term.

Choosing the right lipo battery will give your RC car or truck the power and runtime it needs for maximum fun. Assess your performance needs, electronics, size requirements and budget to select the ideal battery. Pay close attention to the C-rating, capacity, and cell count. And be sure to use lipo-safe charging practices to extend battery life.

Frequently Asked Questions When Picking the Best Lipo Batteries for RC Cars

Q: What is a lipo battery?

A: Lipo stands for lithium polymer. Lipo batteries are rechargeable and provide power for RC vehicles. They offer high capacity in a small, lightweight package and can provide high discharge rates for bursts of power.

Q: What makes lipo batteries good for RC cars?

A: Lipos are designed to deliver maximum power and speed. Their high discharge rate means they can supply a lot of current quickly to give an acceleration boost. Lipos can be discharged a lower voltage than older battery types, extracting more power. And their small size-to-power ratio is ideal for RC.

Q: What C-rating do I need for my RC car?

A: The C-rating indicates how much constant current a battery can provide. For RC cars, you generally want at least a 25C constant/50C burst discharge battery. Race cars will benefit from a high discharge like 80C constant/100C burst for maximum power delivery.

Q: How do I choose the right capacity battery?

A: Capacity is measured in milliamp hours (mAh). Higher capacity means longer runtimes. Choose a capacity that gives you the runtime you desire while still fitting in your car. Good capacities for RC cars are 3000-5000mAh. Multiply the capacity by the voltage to get watt hours.

Q: How many cells should I get?

A: Lipo cells are 3.7V nominal each. Most RC car setups run 2 cell (2S) or 3 cell (3S). Make sure your speed control and motor can handle the voltage before upgrading to more cells. Higher voltage allows lower current for less heat and wear.

Q: What size battery do I need for my car?

A: Check the dimensions of your car’s battery compartment and get a battery that fits well. Lipos come in different form factors like stick packs, shorty packs, and saddle packs. You want a snug fit, but not overly tight. Also consider the battery’s weight distribution.

Q: How do I properly care for lipos?

A: Never discharge lipos too low or overcharge them. Always balance charge to the correct voltage. Never charge unattended or at high currents. Store batteries at around half charge and room temperature. And prevent physical damage like punctures.

Q: What are the best lipo battery brands for RC Cars?

A: Top quality brands are Gens Ace, Traxxas, and Venom. Stick with trusted hobby brands for performance, safety, and reliability. Avoid cheap no-name lipos that can be risky.

Final Thoughts

Choosing the right lipo battery is one of the most important decisions you’ll make to get the best performance out of your RC car or truck. Match the battery’s specifications and size to your vehicle’s electronics and powertrain requirements. Look for high C-ratings for power and sufficient capacity for your desired runtimes. Determine the ideal cell count based on your speed control and motor limits. Invest in a quality battery from a trusted hobby brand known for speed, reliability and safety. Properly care for your lipos to extend their lifespan.

Enjoyed this review of the Best Lipo Batteries For RC Cars? Then be sure to check out our other RC Rating guides.

• Best RC Cars Under $100
• Best RC Cars For Beginners
• Best RC Boats
• Best RC Airplanes For Beginner