The ECS-DPMRBP allows you to repeatedly recharge your battery. No need to buy disposable batteries. This saves you time and money involved in buying new batteries. Specially designed for the Pocket Memo DPM 8000 series. Specifications: Battery type: Rechargeable lithium-ion battery. Battery capacity: 3.7 V - 1250 mAh Battery life: record up to 23 hours (DSS Pro mode) Charging time (full charge): 3 hours Compatible with the following Pocket Memo DPM6000, DPM7000, DPM8000, DPM8100, DPM8500, DPM8900