Electric RC Car Battery: A Comprehensive Guide

Electric RC Car Battery: A Comprehensive Guide

Electric RC cars are becoming increasingly popular among hobbyists as they offer an exciting and engaging experience that can be enjoyed by people of all ages. One crucial component that determines the performance of an electric RC car is its battery. The battery provides the power necessary to drive the motor of the car and can have a significant impact on the car’s speed, acceleration, and handling. With the advent of newer and more advanced battery technologies, there are now several options available in the market when it comes to electric RC car batteries. Each type of battery has its advantages and disadvantages, making it essential for RC enthusiasts to choose wisely. In this article, we will discuss the different types of batteries used for electric RC cars, their characteristics, how to choose the right battery, and how to maintain it to ensure optimal performance and longevity of the vehicle.

Types of batteries

There are three main types of batteries used for electric RC cars, each with its strengths and weaknesses. These include:

  • Nickel-cadmium (NiCad) batteries: These are the oldest and most common type of battery used in electric RC cars. While they are affordable and durable, they have lower capacity and are prone to memory effect, meaning they should be fully discharged before recharging to maintain their full capacity.
  • Nickel-metal hydride (NiMH) batteries: These batteries offer a higher capacity than NiCad batteries and are less prone to memory effect. However, they have a lower discharge rate and are bulkier and heavier.
  • Lithium polymer (LiPo) batteries: These batteries are the most advanced and offer the highest capacity and discharge rates. They are also lighter and more compact. However, they are more expensive and require special care to prevent overcharging or over-discharging, which can damage the battery.

Choosing the right type of battery for an electric RC car depends on several factors, including the desired performance level, budget, and frequency of use. Hobbyists can consult online reviews and product guides before making a purchase. Some popular websites for buying electric RC car batteries include Amazon, HobbyKing, and Horizon Hobby.

What batteries do RC cars use?

RC cars are powered mainly by rechargeable batteries. These batteries are designed to provide the necessary power for the electric motor that runs the car. There are different types of batteries that an RC car can use, which include:

  • LiPo (Lithium Polymer) batteries- These batteries offer high power output and have a lighter weight, making them a popular choice in hobby-grade RC cars.
  • NiMH (Nickel-Metal Hydride) batteries – These batteries are commonly used in entry-level RC cars due to their affordable price and decent power output.
  • NiCad (Nickel Cadmium) batteries – These batteries have become obsolete as they are heavy, have poor power output, and are not environmentally friendly.

It’s important to note that the type of battery your RC car uses will depend on the type and size of the car. Consult the manufacturer’s specifications or the manual to know which battery to use.

If you’re in the market for RC car batteries, there are various online stores that sell a wide range of batteries from reputable brands such as Hobbyking, Ampow, and Venom Power.

Capacity and Voltage

When it comes to electric RC car batteries, capacity and voltage are the two most important factors that affect performance. Here’s what you need to know:

  • Capacity is measured in milliampere-hours (mAh) and represents the amount of charge the battery can hold. The higher the capacity, the longer the battery can run before needing a recharge.
  • Voltage is measured in volts (V) and represents the power output of the battery. The higher the voltage, the faster the car can go and the more torque it can produce.
  • A higher capacity battery may have a longer runtime, but may also have a slower discharge rate, which can affect performance. Similarly, a higher voltage battery may produce more power, but may also generate more heat and put more strain on the car’s motor.

To choose the right battery for your electric RC car, consider the car’s weight, motor type, and driving conditions. A higher capacity battery may be necessary for a heavier car or for racing, while a higher voltage battery may be better suited for off-road driving. Some popular batteries for electric RC cars include the Traxxas Power Cell LiPo battery and the Venom NiMH battery.

The following table compares the key specifications of a NiCad, NiMH, and LiPo battery:

Battery Type Capacity (mAh) Voltage (V) Weight (oz)
NiCad 1000-3000 7.2-9.6 4.9-12.3
NiMH 1600-5000 7.2-8.4 6.2-19.5
LiPo 500-8000 7.4-22.2 2.5-13.5


Properly charging your electric RC car battery is crucial for optimal performance and longevity. Here’s what you need to know:

  • Before charging, make sure to read the instructions that come with your battery and charger, as the process may vary depending on the type of battery and charger.
  • Many chargers come with a charging cable that connects the charger to the battery. Make sure the connectors are properly aligned and securely connected to avoid damaging the battery or charger.
  • When charging, make sure to use a charger that is compatible with your battery type and voltage. Using the wrong charger can not only damage the battery, but can also pose a safety risk.
  • Make sure to charge the battery in a well-ventilated area, away from flammable materials and electronic devices.
  • Never leave a charging battery unattended, and make sure to unplug the charger once the battery is fully charged to avoid overcharging.

Some popular chargers for electric RC car batteries include the Venom Pro Quad Charger and the HTRC LiPo Charger. Investing in a high-quality charger can not only ensure safer charging, but can also extend the lifespan of your battery.

Remember, proper charging is crucial for the performance and longevity of your electric RC car battery. Be sure to follow the manufacturer’s instructions and use a compatible charger to keep your battery running smoothly.

How do I charge my RC car battery?

Charging your RC car battery is an important task that ensures your RC car runs smoothly. To charge your RC car battery correctly, follow the steps below:

  • First, disconnect the battery from the car.
  • Next, connect the battery to a charger that is compatible with your battery type.
  • Make sure the charger is correctly set up and plugged in.
  • Then, turn on the charger and set the charging time as per the instructions for your battery.
  • Once the battery is fully charged, turn off the charger and detach the battery from the charging port.
  • Finally, reconnect the battery to your RC car and enjoy a fully charged car.

There are various types of RC car chargers available, such as AC/DC chargers, balance chargers, and smart chargers. Be sure to choose a charger that is recommended for use with your specific RC car battery.

If you’re unsure about which charger to choose, you can visit online forums or product review sites for guidance. Some popular RC car websites that offer chargers and batteries include Horizon Hobby, Tamiya USA, and HobbyTown.

Storage and Maintenance

Proper storage and maintenance can help extend the lifespan of your electric RC car battery. Here are some tips to keep in mind:

  • Store your battery in a cool, dry place away from direct sunlight and heat sources.
  • Avoid storing your battery fully charged or fully depleted for extended periods of time. A charge level between 40-60% is recommended for storage.
  • Regularly use and charge your battery to keep it in good condition.
  • Inspect your battery for any physical damage, such as bulging or cracked casing, that may indicate it needs to be replaced.
  • Use a battery-specific storage bag or fire-resistant container to store your battery, especially during transport.

Some popular maintenance tools for electric RC car batteries include the Venom Deadlock Charging Safety Device and the Traxxas Battery Charge Indicator. These tools can help prevent overcharging and monitor battery health.

By following these storage and maintenance tips, you can ensure your electric RC car battery stays in top condition and provides optimal performance for longer.

Is Higher RC Battery Better?

When it comes to selecting an RC battery, the higher the voltage rating, the more power the battery can provide. While a higher voltage battery can improve the performance of your RC vehicle, it may not always be the best option. Here are some things to consider when selecting an RC Battery:

  • Higher voltage batteries are good for high-performance cars like racing cars
  • Higher voltage batteries will have a shorter lifespan than lower voltage batteries.
  • Higher voltage batteries can output more energy, which can cause more wear and tear on your vehicle.
  • The higher the capacity of the battery, the longer your vehicle can run on a single charge

If you’re unsure which battery to choose, it’s important to consult with an expert or refer to the manufacturer’s recommendations. Some popular websites to look for purchasing an RC battery are Horizon Hobby and Amazon.

Upgrading the Battery

If you’re looking to upgrade your electric RC car battery, keep the following factors in mind:

Battery Type

  • Consider the type of battery you want to upgrade to, such as NiMH or LiPo, based on your driving goals and budget.
  • NiMH batteries are affordable and easy to use, while LiPo batteries offer higher performance and longer run times but require specialized chargers and proper care.

Capacity and Voltage

  • Choose a battery with a higher capacity and voltage rating than your current battery, to improve your car’s speed and performance.
  • Check your car’s manual for the recommended voltage and capacity range, and choose a battery that falls within that range.

Brand and Price

  • Consider the brand reputation and customer reviews when choosing a new battery.
  • Balance the price and quality of the battery, and choose one that fits your budget and performance needs.

Popular brands for electric RC car batteries include Traxxas, Venom, and Gens Ace. Websites such as Amazon or Rc Planet offer various options for upgrading batteries. Be sure to research and compare different options before making a purchase.

Which Battery is Best for RC Car?

Choosing the right battery for your RC car is crucial for its performance. Some of the best battery options for RC cars include:

  • Lithium Polymer (LiPo) battery: This type of battery is lightweight and compact, making it ideal for smaller RC cars. LiPo batteries also have a high discharge rate, providing better acceleration and speed.
  • Nickel Metal Hydride (NiMH) battery: This battery is a popular choice for beginners, as it is low maintenance and easy to use. NiMH batteries have a longer life span and are great for larger RC cars.
  • Nickel Cadmium (NiCad) battery: Although outdated, NiCad batteries are still used by some RC car enthusiasts. They have a high discharge rate and are ideal for racing.

When choosing a battery, consider the size and weight of your RC car, as well as the type of terrain you will be driving on. Always make sure to use a battery that is compatible with your RC car’s specifications.

For more information and product options, websites such as HobbyKing.com and HorizonHobby.com offer a wide range of RC car batteries to choose from.


Choosing the right battery for your electric RC car is crucial to ensure optimal performance and longevity of your car. When selecting a battery, consider the type of battery, capacity and voltage, as well as the brand reputation and price. Remember to follow proper charging, storing, and maintenance procedures to maximize the lifespan of your battery.

Upgrading your electric RC car battery can significantly improve your car’s performance, but be sure to choose a battery that’s compatible with your car and fits your budget and performance goals. Traxxas, Venom, and Gens Ace are all popular brands for electric RC car batteries, and online retailers like Amazon or RC Planet offer a wide range of options.

In summary, the electric RC car battery plays a crucial role in the performance of your car. With proper maintenance and a compatible, high-quality battery, you can enjoy longer run times, faster speeds, and smoother driving.