The Baofeng BF-888S battery (Model: BL-1) is a rechargeable lithium-ion power source designed specifically to support regular two-way radio operation. According to specifications from the Official Baofeng Store, it features a standard capacity of 1500mAh and V DC.Battery Model: BL-1Chemistry: Lithium-ion (Li-ion)Capacity: 1500 mAh (5.55 Wh)Voltage: 3.7V DC (with a charger limit voltage of 4.2V)Weight: 3.5 ounces (approx. 100 grams)Color: Black