Ambient Weather 3.7V / 800 mAh Rechargeable Battery for WR-111, WR-333, WR-334 and MR-750 Weather Alert Radios as well as most CR123A (LIR123A) electronic devices. Also compatible with: LIR123A 3.7V 600 mAh LIR17335 3.7V 600 mAh BGICR17360 3.7V 800 mAh