This rechargeable nickel metal-hydride (Ni-MH) battery pack is designed for use with the DS-4000. Always be prepared with an extra battery for travelling or long meetings. When you are back in the office simply recharge by placing the DS-4000 in its docking station.

**This Item replaces the BR402 Battery. Any one owning a DS-4000 with a CR3 Cradle can call Olympus at any time to exchange their cradle with a CR3A cradle.