Quick DetailsPlace of Origin: Guangdong,Website:://.trustfirelight.com, China (Mainland) Brand Name: trustfire Model Number: 10440 Type: Li-Ion Nominal Voltage: 3.7V Size: 4cm*1cm, 10mm(dia.)*44mm(height) Nominal Capacity: 3.7V Warranty: 1 Year Color: Black Working voltage: 3.7V Certification: CE Capacity: 600 mAh Product name: Rechargeable li-ion battery Brand: Trustfire Model: 10440 Design: With button top and protected Packaging