Model: 502030-250mah Rated capacity: 250 (mah) Custom processing: Yes  Standard voltage: 3.7 (V) Charging current: 1 (A) Dimensions: 5mm*20mm*30mm(mm) Applicable type: Bluetooth Charging time: 3H Battery type: polymer Rechargeable: Rechargeable Material: pure lithium cobalt oxide Product Name: Polymer lithium battery Charging voltage: 4.25V Storage temperature: normal temperature Working temperature: -20 degrees – 60 degrees Scope of application: digital products