1.7Ah vs 2.0Ah vs 3.5Ah
Same fit: these run the same toolsLowest 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 3.5Ah stores 106% more than the 1.7Ah: 63Wh vs 31Wh.
WeightThe 1.7Ah is the lightest at 0.32kg, the 3.5Ah the heaviest at 0.58kg.
PriceThe 2.0Ah is the cheapest of the three today, at £44.95.
Price per Ah2.0Ah £22.48, 3.5Ah £28.56, 1.7Ah £46.44.
Chemistry1.7Ah: Li-ion pouch (POWERSTACK); 2.0Ah: Li-ion (cylindrical); 3.5Ah: Li-ion pouch (POWERSTACK).
Good to know
Same toolsAll three fit every DeWalt 18V XR tool.
Energy
DCBP034
31Wh
DCB183
36Wh
DCBP318
63Wh
Maker figure, or volts × Ah where they don't publish one. Ah and Wh explained ›
Weight
DCBP034
0.32kg
DCB183
0.4kg
DCBP318
0.58kg
Price per Ah
DCBP034
£46.44
DCB183
£22.48
DCBP318
£28.56
Lowest price we track ÷ Ah. Full specs
DCBP034DCB183DCBP318
Voltage18V18V18V
Capacity1.7Ah2.0Ah3.5Ah
Energy31Wh36Wh63Wh
Weight0.32kg0.4kg0.58kg
Energy for its weight96Wh/kg (worked out)90Wh/kg (worked out)109Wh/kg (worked out)
ChemistryLi-ion pouch (POWERSTACK)Li-ion (cylindrical)Li-ion pouch (POWERSTACK)
Cell typePouch (stacked)Not listedPouch (stacked)
Fuel gaugeYesYesYes
Size (L × W × H)Not listedNot listedNot listed
Lowest price£78.95£44.95£99.95
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.
Battery guides
Not sure what the numbers mean, or which platform to buy into? Start here.
Power Tool Battery Ah and Wh ExplainedEvery battery gives an "Ah" number: 2.0Ah, 5.0Ah, 8.0Ah. People treat it like a power rating, buy the biggest one they can,…5 Min Read min read ›
Cordless Battery Platforms Explained: Which Should You Buy Into?Here is the thing no one tells you when you buy your first power tool: you are not really choosing a tool.…8 min read min read ›
Corded vs Cordless Power Tools: Which to Buy?Cordless has taken over site and workshop, and for good reason, but corded tools are not dead, and for some jobs they…5 min read min read ›


