Cameron Sino Sport PRO Handheld Transmitter Battery 750mAh 3.7V

Replacement Battery for Garmin Sport PRO

This 750 mAh lithium-ion pack replaces the original Garmin 010-11864-20 and 361-00056-13 cells used in the Sport PRO handheld transmitter. It delivers 3.7 volts and 2.78 Wh in a slim 48.50 x 33.90 x 4.70 mm form factor weighing 20.0 g. The integrated protection circuit guards against overcharge, over-discharge, over-voltage and short circuits. Buyers needing a higher-capacity cell for longer field sessions cannot use this pack.

Dimensions and Connector Fit

The battery measures 48.50 by 33.90 by 4.70 millimetres, matching the OEM footprint so it seats securely in the transmitter’s compartment. A fully decoded chip communicates with the device exactly like the factory unit, ensuring correct fuel-gauge readings and charge control. The package includes shock-absorbing foam for transit protection. Builders who require a different connector layout or a larger pack for extended runtime will find this model unsuitable.

Lithium-Ion Chemistry Limits

Rated at 3.7 volts and 750 mAh, the cell follows standard lithium-ion behaviour: capacity peaks after two or three full charge cycles and degrades if stored above 60 °C (140 °F). The protection circuit prevents deep discharge, yet the pack must not be disassembled, exposed to fire or immersed in water. Users needing a chemistry with wider temperature tolerance or a higher cycle count should consider alternative power solutions.