Stihl AK20 Battery - 45204006518
Compatible with the tools in the STIHL AK cordless power system, the AK 20 is a lightweight 36 V Lithium-Ion battery. It features a charge level indicator on the top with four LEDs so you can see how much charge you have left quickly and easily, at the touch of a button. This is the recommended battery for the RMA 235 lawn mower and BGA 57 leaf blower and has been designed to balance perfectly with those tools.