Amazon.com: 2 Pack 18V 5000mAh Lithium-ion Replacement Battery for Makita and 14.4V-18V Replacement Charger for Makita BL1830 BL1850 BL1840 : Tools & Home Improvement
Amazon.com: WORTHMAH BL1860 6.0Ah 18 Volt Battery Replacement for Makita 18V Battery with LED Indicator BL1815 BL1860 BL1830 BL1850B-2 LXT-400 Cordless Power Tools,2 Packs with 1 Carpenter Pencil : Tools & Home Improvement
3.0Ah 18 Volt BL1830B Battery Replacement for Makita 18V Battery Lithium ion BL1815 BL1815N BL1820 BL1820B BL1830 BL1840 BL1840B BL1850 BL1840B BL1860 BL1840B with LED Indicator - - Amazon.com
waitley BL1830 18V 9.0Ah Replacement Battery Compatible with Makita BL1840 BL1850 BL1860 BL1890 Lithium-Ion Battery Tools with LED Indicator - - Amazon .com