Specs from the makers' own documentation Battery compatibility built in UK retailer prices, updated daily 25+ years of trade experience
Battery comparison
3 of 3 batteries

2.0Ah vs 3.0Ah vs 5.0Ah

Same fit: these run the same tools
DEWALT 12V XR
2.0Ah DCB127 2.0Ah · 22Wh · 0.22kg
No retailer price yet
DEWALT 12V XR
3.0Ah DCB124 3.0Ah · 32Wh · 0.25kg
No retailer price yet
DEWALT 12V XR
DeWalt DCB126 DCB126 5.0Ah · 54Wh · 0.46kg
£54.95from 2 retailers View at Tooled Up ›

Lowest price we track at UK retailers, updated daily. We may earn a commission

They differ in 2 of 3 areas

Same tools, so this is about size, weight and cost. No overall winner: pick the size that suits the job.

EnergyThe 5.0Ah stores 150% more than the 2.0Ah: 54Wh vs 22Wh.
WeightThe 2.0Ah is the lightest at 0.22kg, the 5.0Ah the heaviest at 0.46kg.

Good to know

Same toolsAll three fit every DeWalt 12V XR tool.
Same chargersDCB104, DCB1104, DCB116, DCB132 and DCB1102 charge all three. Charge times are in the specs below.
Energy
DCB127 22Wh
DCB124 32Wh
DCB126 54Wh
Maker figure, or volts × Ah where they don't publish one. Ah and Wh explained ›
Weight
DCB127 0.22kg
DCB124 0.25kg
DCB126 0.46kg

Full specs

DCB127DCB124DCB126
Voltage12V max (10.8V nom)12V max (10.8V nom)12V max (10.8V nom)
Capacity2.0Ah3.0Ah5.0Ah
Energy22Wh32Wh54Wh
Weight0.22kg0.25kg0.46kg
Energy for its weight98Wh/kg (worked out)130Wh/kg (worked out)117Wh/kg (worked out)
ChemistryLi-ion (cylindrical)Li-ion (cylindrical)Li-ion (cylindrical)
Cell typeNot listedNot listedNot listed
Fuel gaugeNot listedYesYes
Size (L × W × H)Not listedNot listedNot listed
Charge time, DCB104, DCB1104, DCB116, DCB13230 min45 min1 hr 15 min
Charge time, DCB11021 hr1 hr 30 min2 hr 30 min
Lowest priceNo retailer price yetNo retailer price yet£54.95

Specs from each maker's own documentation. "Not listed" means the maker doesn't publish it or we haven't found it yet; it never counts as a difference.

Scroll to Top