High Quality, high capacity, light weight rechargeable battery. No memory effect. Can be charged or discharged as needed without loss of capacity. Overcharge protection, with built-in battery life microchip. CE Certified. Capacity: 700mAh Compatible Models: Philips SJB2121, SJB-2121, SJB2121/17 Compatible Original Battery Part nos: BBTG0671011, BBTG0743001, BT-101, BT1011, BT-1011, BT-1018, BT-694