Specifications: Voltage: 7.2V Capacity: 3000mAh Battery Type: Lithium-Ion Battery Cell: LG or Sony Replacement Part: Dremel 808, B808-01 Dremel 26150808JA Dremel 85-0352 Dremel F0138100JB Dremel 2 607 336 715 Fit Models: Dremel 8100, 8100 Cordless Multi-Tool Note: 1.For safe transportation, the batteries have not been full charged, after three cycles (full charge and full discharge for three times), the batteries can reach the best condition. 2.Please don't store the batteries for a long time, it need to be used at least once a month. 3.When your power tools are stucking and unable to run, please don’t force it to run. Otherwise excessive current will burn down the batteries. The right way is that pulling the tools back and running the tools again smoothly. Package Includes: 1x Battery.