Amazon.com: 4-Pack 6000mAh 18V 48-11-1850 Battery Replace for Milwaukee 18V Batteries Lithium ion XC 48-11-1852 48-11-1862 48-11-1820 48-11-1840 48-11-1828 48-11-1815 Compatible with Milwaukee 18 Volt Tools : Tools & Home Improvement
Amazon.com: LQ-18RY Adapter for Milwaukee M18 Platform Lithium Batteries Fits Black and Decker 20v MAX (NOT Old 18v) Cordless Tools -Adapter Only, Red, 18M-20BD : Tools & Home Improvement
Amazon.com: THISS 2Pack 6.5Ah 18V M-18 Battery Replacement for Milwaukee Battery 48-11-1860 48-11-1840 48-11-1850 48-11-1815 48-11-1820 48-11-1828 48-11-1852 48-11-1822 48-11-1811 for Milwaukee 18V Batteries : Tools & Home Improvement