2.0Ah vs 3.5Ah vs 4.0Ah
Same fit: these run the same tools
Lowest price we track at UK retailers, updated daily. We may earn a commission
They differ in 5 of 5 areas
Same tools, so this is about size, weight and cost. No overall winner: pick the size that suits the job.
EnergyThe 4.0Ah stores 100% more than the 2.0Ah: 72Wh vs 36Wh.
WeightThe 2.0Ah is the lightest at 0.4kg, the 4.0Ah the heaviest at 0.61kg.
PriceThe 2.0Ah is the cheapest of the three today, at £44.95.
Price per Ah4.0Ah £12.49, 2.0Ah £22.48, 3.5Ah £28.56.
Chemistry2.0Ah: Li-ion (cylindrical); 3.5Ah: Li-ion pouch (POWERSTACK); 4.0Ah: Li-ion (cylindrical).
Good to know
Same toolsAll three fit every DeWalt 18V XR tool.
Energy
DCB183
36Wh
DCBP318
63Wh
DCB182
72Wh
Maker figure, or volts × Ah where they don't publish one. Ah and Wh explained ›
Weight
DCB183
0.4kg
DCBP318
0.58kg
DCB182
0.61kg
Price per Ah
DCB183
£22.48
DCBP318
£28.56
DCB182
£12.49
Lowest price we track ÷ Ah. Full specs
DCB183DCBP318DCB182
Voltage18V18V18V
Capacity2.0Ah3.5Ah4.0Ah
Energy36Wh63Wh72Wh
Weight0.4kg0.58kg0.61kg
Energy for its weight90Wh/kg (worked out)109Wh/kg (worked out)118Wh/kg (worked out)
ChemistryLi-ion (cylindrical)Li-ion pouch (POWERSTACK)Li-ion (cylindrical)
Cell typeNot listedPouch (stacked)Not listed
Fuel gaugeYesYesYes
Size (L × W × H)Not listedNot listedNot listed
Lowest price£44.95£99.95£49.95
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.
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