Makita BL1850-2 18-volt LXT Lithium-Ion 5.0Ah Battery, 2-Pack- Discontinued by Manufacturer (Discontinued by Manufacturer) - - Amazon.com
Makita XRJ01Z 18-Volt LXT Lithium-Ion Cordless Compact Reciprocating Saw (Tool Only, No Battery), Bare Tool - - Amazon.com
Amazon.com: 2 Packs Replace for Makita 18V Battery 6.0Ah, Replacement Makita 18 Volt BL1860B Batteries BL1820B 1830B 1840B 1850B, Compatible with Makita 18v Tools, Fit with Original Makita 18v Battery Charger :
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
Amazon.com: BL1830 18 Volt 3.0Ah Replacement Battery Compatible with Makita 18V Battery BL1860 BL1850B BL1840B BL1830B BL1815B LXT-400 Cordless Power Tools 2Packs : Tools & Home Improvement