The Hyper Tough 20VMax 2.5 Ah Lithium Ion Rechargeable Battery can be to power any Hyper Tough power and garden tool in the HT Charge family. Same Battery, Choose Your Power. Use this battery for tools like the 20VMax Garden Sprayer or double it up and use it with another 20VMax battery to run the 40VMax Turbine Blower, any many, many more. Battery Indicator Lights right on the face let you know when it's all charged up. USB adaptable to give you flexibility. 2.5 Ah (Amp Hours) is more juice than standard 2.0 Ah rechargeable batteries. Lithium Ion technology lets you charge over and over and over without memory effect or degradation.