RC Car Batteries Explained

RC Car Batteries Explained: NiMH vs LiPo, mAh, C Rating & Safe Charging

Your RC car's battery decides how fast it goes, how long it runs and how safe it is to charge. Here's what every new owner should know.

[Image: an RC car on a workbench next to a NiMH pack and a LiPo pack, labelled, clean studio light, 16:9]

NiMH vs LiPo: which one do you have?

• NiMH – heavy, tough and low-maintenance. Common in entry-level cars. The car slows down gradually as the battery drains.
• LiPo – light and powerful. Used in hobby-grade and brushless cars. Keeps full speed until nearly empty, but needs careful charging and storage.

How to read the label

A label like 7.4V 2S 2200mAh 30C means:

• 7.4V / 2S – voltage, which sets speed. Never use a higher voltage than your car supports.
• 2200mAh – capacity, which sets run time. Higher mAh = longer runs.
• 30C – how fast the pack can deliver power. 25C–50C suits most cars.

Also match the connector (T-plug, XT60 etc.) to your car.

Charge and store it safely

1. Use the correct charger; always balance-charge LiPo.
2. Let the battery cool for 15–20 minutes after a run.
3. Charge on a non-flammable surface and never leave it unattended.
4. Unplug the battery from the car after every run.
5. For LiPo not used for a few days, use the charger's Storage mode (about half charge).
6. Keep batteries out of direct sun and hot parked cars.

Stop using it if the battery is puffed, gets very hot, or is damaged. Never charge a swollen LiPo.

[Image: a healthy flat LiPo next to a swollen one, labelled "Healthy" and "Replace now", 16:9]

Buying a spare

A second battery doubles your driving time. Match the type, voltage, connector and size of your original. Not sure which fits? WhatsApp us your car's model at +91 81848 49321, or browse RC Accessories.

Every hobby-grade RC from CrazyRC comes with 6 months of free repairs, covering battery and ESC faults. See how the Care Plan works.