Olympus BR404 Rechargeable Ni-MH battery Pack of 4 BR404

AAA Ni-MH rechargeable battery
High-efficiency & long-life
Extra-slow self-discharge rate
90% of capacity remains for 1 year
Chargeable up to 1,000 times
Pack of 4

Compatible with the following Olympus products DS-2500, DM-650, DM-670, LS-3, WS-812, WS-813, WS831, WS832, WS-833 Dictation machines. Having sufficient power for your audio device is always a crucial concern with voice recording. The BR404 rechargeable battery means you can forget about ever running out of power at the wrong moment again. Rechargeable and reliable, this battery is perhaps most notable for its incredibly low self-discharge: If you were to fully charge it and leave it for a year, it would still have retained 90% of this charged power.