Medical device battery pack( HYLB-002) Nominal voltage: 14.4V Nominal capacity: 2000mAh Battery type: rechargeable li-ion Battery cell: 16850 Sanyo/ Sony/ Samsung Discharge cut-off voltage: 11.0V Charge current: 400mA Charge voltage: 16.8V Dimension: Max 85.5* 72.5* 43.5mm Custom-made battery packs are highly welcomed. For interest, please contact jessie( at) hengyutech( dot) com.