Milwaukee M18 18-Volt 5.0 Ah Lithium-Ion XC Extended Capacity Battery Pack 48-11-1850 - The Home Depot
Amazon.com: [1Pack] 18V 5.0Ah High Power Battery for Hitachi Power Tools Fit BCL1815 BCL1820 BCL1825 BCL1830 BCL1840 EBM1830 327730 327731 18-Volt Battery : Tools & Home Improvement