7.4V 1200mAh RC Lithium Battery for Cars and Model Ships

This lithium polymer battery provides the core power source for radio-controlled hobbyist vehicles, including model cars and ships designed for 2S or 3S battery configurations. With a nominal voltage of 7.4 volts and a capacity rating of 1200 milliampere-hours, it delivers the sustained electrical current needed for motor operation and onboard electronics. The compact 15mm by 36mm by 70mm form factor makes it suitable for installation in vehicles with limited internal space, while the included T-plug connector ensures compatibility with standard RC electronic speed controllers. Supplied as a single unit, this battery offers a straightforward power solution for enthusiasts.

Technical Specifications and Build

The battery's construction centres on providing reliable power within defined physical constraints for the RC hobbyist market.

Electrical Performance

Rated at 7.4 volts, this battery operates within the common voltage range for many 2S lithium polymer setups in RC applications. The 1200mAh capacity indicates the total electrical charge it can store, which translates directly into the potential runtime for a model's motor and systems before requiring a recharge. This specification makes it suitable for moderate-sized cars and boats where a balance between weight, size, and operational duration is needed.

Physical Dimensions and Fit

Measuring 15 millimetres in width, 36 millimetres in height, and 70 millimetres in length, the battery is designed for compact installation. These dimensions allow it to slot into battery trays or compartments in various 1/10 or 1/12 scale model cars and similarly sized marine models. The form factor is a practical consideration for builders and users who need to fit power sources into pre-existing chassis designs or custom builds with limited internal volume.

Compatibility and Connection

Integration with existing RC systems is straightforward due to standardised connection methods and voltage alignment.

Connector and Wiring

The battery is fitted with a T-plug connector, a common interface in the radio control hobby for connecting batteries to electronic speed controllers (ESCs). This allows for a secure connection that can handle the high current draw typical of RC model motors. Users should ensure their ESC or charger is equipped with a matching T-plug or use an appropriate adapter to maintain a safe and reliable electrical connection.

Model Application Range

Primarily intended for use in remote-control cars and model ships, this 7.4V battery suits models designed for a 2S lithium setup. It may also function in some 3S configurations depending on the specific model's electronics and power requirements. Its application is defined by its voltage and capacity, making it a match for hobby-grade vehicles where these specifications align with the manufacturer's recommendations.

Practical Use and Handling

Operating and maintaining a lithium battery requires attention to basic safety and care procedures to ensure longevity and safe operation.

Charging and Storage Guidance

A dedicated lithium polymer (LiPo) balance charger must be used to recharge this battery safely. Standard chargers for other battery chemistries are not suitable and pose a safety risk. When not in use for extended periods, the battery should be stored in a fire-resistant container or bag, in a cool and dry location, away from flammable materials.

Installation and Routine Checks

Before installing the battery into a model, visually check the wires, plug, and outer casing for any signs of damage, such as cracks, tears, or exposed wiring. Ensure the connection to the speed controller is firm and secure to prevent disconnection during operation, which could cause a sudden loss of power or potential electrical arcing. Always follow the specific installation guidelines provided by the model's manufacturer.