Metabo HPT MultiVolt 18-Volt 2-Pack Lithium-ion Power Tool Battery and Charger (Charger Included) in the Power Tool Batteries & Chargers department at Lowes.com
Amazon.com: Jialitt 36V/18V 6.0Ah Li-Ion Replacement for Metabo HPT Battery MultiVolt 36V/18V 371751M 372121M BSL36A18 BSL36B18 Cordless Power Tools : Tools & Home Improvement
18 Volt 2.0Ah Lithium Ion Battery with Fuel Gauge | Metabo HPT 377797M BSL1820M
Amazon.com: Battery Adapter Converter for Makita BL1850 BL1860 18V Battery to Hitachi 18V BSL1830C BSL1815X BSL1815S BSL1830 Battery, to Metabo HPT 18V Battery, Work with Hitachi & Metabo 18V Slide Style Tools :
Synergy Digital Power Tool Battery, Compatible with Metabo R 12-18 Power Tool, (Li-ion, 18V, 6000mAh) Ultra High Capacity, Replacement for Metabo Battery - Walmart.com