Battery Type: Li-ion Cell Voltage: 10.8V Capacity: 3500mAh Item Weight: 260g with package FCC, CE and RoHS certified, 100% compatible with the originals and may exceed the performance of OEM products UK/EU Charger Input: 100-240V Output: 12.6V/1.5A Suitable for: DREMEL 10.8-12V Li-Ion batteries Item Weight: 240g Replace: Dremel: 855-02, 855-01 Fit for: Dremel: 8000-01, 8001-01, 8001-02 Red: Charging in progress Green: charging completed, battery full Flashing red: poorly connected, high temperature or reverse connection. Note: It's recommended that the battery should be fully charged and discharged 3 times after you receive the battery. For transport safety, our batteries are not fully charged before leave the factory. After use, please charge the battery after cooling.