Makita BL1850B2DC2 18V LXT® Lithium-Ion Battery and Dual Port Charger Starter Pack (5.0Ah) - Amazon.com
Amazon.com: Crivnhar 10 Pack Battery Holder for Makita 18V Battery Mounts Dock Holder Fit for BL1860 BL1850 BL1840 BL1830(w/10 Screws) : Tools & Home Improvement