Matching Tips For RC Battery

RC toys require many different motor types and fuels, but most use batteries either as a part of the engine or the control device. The most common types of batteries are typically a form of lithium-ion or lithium polymer battery designed to last for many cycles and recharge quickly. Batteries must be matched to the device using them to prevent dangerous conditions such as failure and overheating.

Cells

The number of cells in an RC battery determines many of the battery's physical attributes. Multiple-cell batteries often have longer run times and require less recharging for professional events and races. More cells also means longer recharge times, a larger battery size and the need of specialized chargers.

Multiple cell batteries need a charger with the ability to detect and prevent overcharging on each cell. Match the size of the battery with the space available on the RC unit before purchasing a multiple-cell battery to ensure enough clearance is available.

Voltage

RC battery voltages range from 7.4 volts to 18 or more. The voltage of the battery determines the amount of electricity the car will receive. Higher-voltage batteries can cause massive motor overheating and may even melt plastics when matched with a vehicle unable to handle the increased load.

Check the RC device's engine for the specific voltage requirements. Using a weaker battery than the documentation indicates rarely causes harm, but the engine is unlikely to be able to run well, if at all.

Types

LiPo and Lion batteries make up the bulk of the rc battery market. These batteries provide a consistent charge and often outlast older battery types such as the NiMH and NiCad versions of the past. Control units typically require only a single-cell 12-volt battery.

NiCad and alkaline batteries are most common for remote control units, but not the vehicles themselves. Match the lipo battery requirements based on voltage and cells, but pay close attention to what type of charger you will need. Never attempt to charge a battery with a charger for a different battery type. This can result in fires, explosions or severe injury.