Amazon.com: TURPOW 7.0Ah Replacement for Makita 18 Volt Battery BL1815 BL1830 BL1840 BL1850 BL1860 194205-3 LXT-400 for Makita 18Volt Batteries LXT Lithium ion Cordless Power Tools with 2 Packs Wall Mount Holder :
Amazon.com: 【Upgrade】 CaliHutt 18V 6.0Ah Replacement Battery for Makita 18V Battery with LED Indicator BL1830 BL1850 BL1840 BL1850B-2 BL1845 BL1815 BL1820 LXT-400 LXT Cordless Power Tools Lithium-ion Battery : Tools & Home
For Makita 18V 3.0Ah LXT Lithium ion Battery or Charger BL1815 BL1820 BL1830 US | eBay
Replacement for 18 volt Makita Battery BL1815 BL1850 BL1820B BL1830 5.0Ah 3Pack - Walmart.com
Amazon.com: 7A DC18RC Replacement Charger for Makita 18 Volt Charger Rapid Battery Charger Compatible with Makita 14.4V-18V Li-ion Battery BL1415 BL1430 BL1815 BL1820B BL1830B BL1840B BL1850B BL1860B : Tools & Home Improvement
Amazon.com: ARyee 18V 6.0Ah Replacement Battery for Makita 18V LXT Battery Compatible with BL1860 BL1850 BL1850B BL1845B BL1840 BL1840B BL1830 BL1820 BL1815 Lithium-ion : Tools & Home Improvement
BL1815 / BL1820 Li-ion 2.0Ah/18V Plus.Parts Battery for Makita (36Wh)