· Product model: XL 180mAh 3.7V · Single battery model: 701720 · Single battery voltage: 3.7V · Single battery capacity: 180mAh · Battery voltage range after combination: 3.0V~4.2V · Battery pack power: 0.666Wh · Battery pack size:7*17.5*23mm · Charge and discharge times: >500 times1. With more than 12years' experience and more than 600 skilled staff serve you. 2. Factory ISO9001:2015 approved and most products comply with UL,CB,KC standards. 3. Wide range of production line covers Li-polymer battery,Lithium ion battery, and battery pack for your various demand.Lithium Polymer Ion batteries provide the performance of the Li-ion in a thin or moldable package. They do not use a volatile liquid electrolyte and can sustain significant abuse without explosion or fire. The lithium polymer uses a polymer gel electrolyte to replace the traditional liquid electrolyte.