For Makita 18V 3.0Ah LXT Lithium ion Battery or Charger BL1815 BL1820 BL1830 US | eBay
Makita BL1815-2 18-Volt 1-1/2 Ah Compact Lithium-Ion Battery, 2-Pack (Discontinued by Manufacturer) - Power Drill Accessories - Amazon.com
For MAKITA BL1815N 18 Volt 2.5Ah LXT Li-Ion Compact Battery BL1820 BL1830 BL1815 | eBay
How To: Hack an old 18 volt Makita BL1815 for new Makita Tools - YouTube
Amazon.com : Powtree BL1815 18V 3.0Ah LXT Lithium-ion Replacement Battery for Makita BL1815 BL1830 BL1860 BL1850 BL1840 BL1850B-2 BL1845 BL1815 BL1820 BL1860B Cordless Power Tools Series : Tools & Home Improvement
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 :