Amazon.com: 2Packs Upgraded 5.0Ah 18V BL1850B with LED Replacement Lithium-ion Battery Compatible with Makita 18 Volt Battery for Compatible Makita 18V Lithium-Ion Cordless Power Tools : Tools & Home Improvement
DM18M Adapter converts for Dewalt 20V Lithium Battery and for Milwaukee 18V M18 Lithium Battery to for Makita 18V Lithium Battery BL1830 BL1840 BL1850 - - Amazon.com
Amazon.com: Makita BL1815N 18V 1.5Ah Lithium Ion Battery : Tools & Home Improvement
Replacement Power Tool Battery Charger for Makita 7.2V-18V 2.5A NI-CD&NI-MH Battery DC7100/DC1410/DC711/DC9700/DC9710/DC18RA/DC18SE - - Amazon.com
Amazon.com: [Upgraded to 9.0Ah] 18 Volt 9000mAh BL1890B Battery Compatible with Makita 18V Battery Lithium-Ion BL1890 BL1860 BL1830 BL1840 BL1850 BL1850B Cordless Power Tools with LED Indicator(black white) : Tools & Home