The DCB118 fully charges the Flexvolt battery within 45 minutes. It is compatible with all 18-volt XR slide batteries and 54-volt Flexvolt batteries from DeWalt, charging with a charge current of 4 or 8 amps, and also features special fan cooling. The 54.0-volt XR Flexvolt battery DCB546 offers enduring performance and is compatible with almost all machines in the 18.0-volt XR range. Its high-quality workmanship makes it ideal for use on construction sites, while the special electronics provide protection against overloading, overheating, and deep discharge. There is no memory effect and no self-discharge. The robust housing is shatterproof, and the battery cells are soldered shockproof. In addition, the battery DCB546 has a charge status display with 3 LEDs.