The DeWalt DCB548‑XJ XR FLEXVOLT® 18/54 V 12 Ah Li‑Ion Battery is a high-performance dual voltage battery that offers exceptional runtime and flexibility for use with professional tools. Featuring a built-in LED charge indicator, electronic circuit protection, and compatibility with the entire 18 V XR and 54 V XR FLEXVOLT® tool system, it is an ideal choice for demanding tasks with large tools and continuous operation.

• Manufacturer: DeWalt
• Part Number (PN): DCB548‑XJ
• EAN: 5035048706794
• Battery type: Li‑Ion XR FLEXVOLT®
• Operating voltage: 18 V / 54 V (switchable / dual‑voltage)
• Capacity: 12 Ah
• Energy: ~216 Wh 
• Built-in charge indicator: LED Fuel Gauge for instant energy level estimation
• Compatibility: All 18 V XR tools and chargers, as well as all 54 V XR FLEXVOLT® tools/chargers from DeWalt
• Cell protection: Built-in circuits for protection against overheating, overload, and deep discharge
• Weight: ~1.46 – 1.50 kg
• Dimensions (L×W×H): approximately 138 × 86 × 98 mm

The DCB548‑XJ uses XR FLEXVOLT® technology, which automatically changes the operating voltage depending on the tool it is placed in:

• 54 V for high-power tools (e.g. saws, cutters, large hammers),

• 18 V for all compatible tools in the 18 V XR series.
  This means that one battery can support multiple tool platforms without the need for a separate system.

With 12 Ah, the battery offers significantly greater autonomy compared to smaller 18 V batteries, making it ideal for extended use of heavy-duty tools or continuous work without frequent charging stops.

The built-in charge indicator allows on-the-spot assessment of available energy, so the user knows when charging is needed, reducing work interruptions.

The battery features built-in electronic protection that increases lifespan and stability during operation, safeguarding against overheating, overload, and deep discharge.