Hymn Technology HT-B3000 Rechargeable Battery Pack for HT-300
The 3000mAh NiMH rechargeable battery pack will provide up to several hours of Hymnal Plus use on one charge. The battery pack is recharged by the Hymnal Plus' built-in charger. Much more efficient and less environmentally hazardous than ordinary NiCd rechargeable batteries, NiMH is the type of battery used in most hybrid cars.
