DEWALT 20-V 4-Pack Lithium-ion Battery (2 Ah and 4 Ah) in the Power Tool Batteries & Chargers department at Lowes.com
DeWalt DCS380N 18V XR Cordless Reciprocating Saw With 2 x 4.0Ah Batteries | eBay
DeWalt DCB182 18V 4.0Ah Battery + DCB115 10.8V-18V Li-Ion Multi Voltage Charger | eBay
DEWALT 20V MAX XR Premium Lithium-Ion 4.0Ah Battery Pack DCB204 - The Home Depot
DEWALT 20V MAX XR Premium Lithium-Ion 4.0Ah Battery Pack (3-Pack) DCB204-3 - The Home Depot
DEWALT 20V MAX XR Premium Lithium-Ion 6.0Ah Battery, 20V MAX XR 5.0Ah Battery, 20V MAX XR 4.0Ah Battery & 20V MAX 2.0Ah Battery DCB346-3WDCB205 - The Home Depot