DEWALT 20V MAX Battery, Lithium Ion, 2 Ah and 4 Ah, 4-Pack, Fuel Gauge LED Charge Indicators (DCB324-4) - Amazon.com
Amazon.com: 12V-20V Max Battery Charger for Dewalt, DCB102 Fast Dual Charger Station Lithium ion Battery Charger DCB203 DCB204 DCB205 DCB206 DCB201 DCB120 DCB127 (2 USB Ports) : Tools & Home Improvement
Amazon.com: DEWALT 20V MAX* Charging Station for Jobsite with 4Ah Battery Pack (DCB102BP) : Everything Else