Makita BL1850-2 18-volt LXT Lithium-Ion 5.0Ah Battery, 2-Pack- Discontinued by Manufacturer (Discontinued by Manufacturer) - - Amazon.com
2PACK 5.0Ah 18Volt Lithium-Ion Battery Replacement for Makita 18V Battery BL1850B BL1830 BL1840 BL1850 BL1860 LXT-400 18 Volt Cordless Power Tools Batteries - - Amazon.com
Amazon.com: BL18 Power Dock for Makita BL1815 BL1830 Battery Quick Connect Disconnect Holder Mount DIY with 12AWG Crimped terminals USA PN BL18-Q12 : Electronics