Rechargeable compatible battery for Huawei, model HGB-15AAx3, 3.6V - 1500mAh; backup battery for router E5172, allow to receive and send calls by analog phone connected. Also can be used in Huawei cordless phones (F688, F685, F617, F615, B160, etc.).
Universal Charger with LCD for battery of mobiles, cameras and so on, that permit to charge battery without phone.
Battery must have contacts (+) and (-) on upper side and larger must be btween 3.2 cm. and 5.4 cm.
Distance between contact must be from 3mm to 47 mm.