GIXUSIL Battery Adapter for Milwaukee to Makita Battery, for Milwaukee 18V for Dewalt 20V Battery Convert to for Makita 18V Battery(Black) - Walmart.com
Adapter With Dual Output Interface For Makita 18v 14v Battery Bl1860 Batteries Onvert To Power Bank Fast Charging Portable Rack - Battery Accessories & Charger Accessories - AliExpress
Amazon.com: 2 Packs Replace for Makita 18V Battery 6.0Ah, Replacement Makita 18 Volt BL1860B Batteries BL1820B 1830B 1840B 1850B, Compatible with Makita 18v Tools, Fit with Original Makita 18v Battery Charger :