Specifications: Voltage: 21.6V Capacity: 5000mAh Battery type: Li-ion Weight: 500g per battery Replacement for: Dyson V8 SV10 967834-02 96783402 164527-01 214730-01 215866 Compatible with: Dyson V8 Animal Cordless Stick Vacuum Cleaner Dyson V8 Absolute Cordless Stick Vacuum Cleaner Dyson 214730-01 V8 Absolute Cord-Free Vacuum Dyson V8 Animal Exclusive Vacuum Cleaner Dyson V8 Fluffy Vacuum Cleaner Dyson SV10 Vacuum Cleaner Dyson V8 Absolute Stick Vacuum Pet Hair Vacuum Cleaner Tips to make it running longer: The newly purchased lithium battery will have a little power, so you can use it directly when you get the battery and recharge after remaining power run out. After 2 to 3 times of normal use, the lithium battery activity can be fully activated.