Rechargeable Batteries "AAA" for Olympus DS2200 and 3300 Recorders
The BR-401 Ni-MH Battery Pack (AAA-4 Pack) contains four AAA size 1.2V Nickel-Metal Hydride Rechargeable Batteries (740mAh) suitable for Olympus digital voice recorders. These batteries can be charged in the BU-400 Charger only available in the Ni-MH Quick Charger and Battery Set (B-70SU). The charger can charge two AAA batteries at a time.
Partial List of Compatible recorders:
Olympus DS-5000, DS-4000, DS-3300, DS-3000, DS-2300, DS-2200, DS-330, DS-660, DS-50, DS-40, DS-30, DM-20, DW-360, DW-90, W-10