The BP-252 Lithium-Ion battery is compatible with the IC-M31, IC-M33, IC-M35 and IC-GM1600 Marine VHF radios. SpecificationsVoltage - 7.2 VCurrent Capacity (minimum) - 1000 mAhCurrent Capacity (typical) - 1050 mAhWaterproof - IP57 (when installed into the transceiver)
