Take on the days work with this 20V MAX Starter Kit, which includes a 4.0Ah battery along with a high-performance charger. Quickly tackle large workloads without stops with the 4.0Ah batteries optimized runtime and the chargers rapid 2 Amp charge rate. It delivers the versatility you need to efficiently finish jobs with the ability to charge all 20V MAX batteries. Best used with power tools, the battery is ready when you need it with no memory and low self-discharge. Overload protection extends the batteries life for long-term use and a conveniently visible LED indicator displays remaining charge to avoid unplanned downtime.