Senco's 18-volt Li-ion battery is designed for long running times with quick recharges and operates at full speed until depleted, so there is no gradual drop in power during use.
Batteries can be charged hundreds of times without any noticeable loss in capacity, and a special LED fuel gauge displays the battery life with a touch of a button.

The battery is compatible with all the Senco 18v Li-ion cordless tools
High quality, reliable cells
3.0Ah
Low self-discharge rate – longer storage life
Charges to 80% in 15-20 minutes
Applications
One Common Battery Platform. Works with all 18-volt Li-ion Senco Fusion and DuraSpin tools