DEWALT DCB1800M3T1 FLEXVOLT Portable Power Station & Simultaneous Charger (includes 4 Batteries) Flexible - the power of corded. The freedom of cordless 1800 watt Portable power Station 4 port parallel charger Includes (3) 4.0 Ah 20V MAX* batteries, (1) 6.0 Ah FLEXVOLT battery Take cordless power anywhere