Amazon.com: Heshunchang Battery 18V 4Ah Replace for Makita BL1811G BL1815G BL1813G BL1820G 195608-4 : Tools & Home Improvement
Amazon.com: 21V Lithium Battery - EKACO 4.0Ah Li-ion Battery Long Life Battery Work with Cordless Leaf Blower, for Makita Power Tools BL1860B BL1850 BL1840 BL1850B-2 BL1845 BL1830 BL1820 BL1815 LXT-400 Series :