5.0Ah vs 5.5Ah vs 6.0Ah
Same fit: these run the same tools
Lowest price we track at UK retailers, updated daily. We may earn a commission
They differ in 3 of 3 areas
Same tools, so this is about size, weight and cost. No overall winner: pick the size that suits the job.
EnergyThe 6.0Ah stores 20% more than the 5.0Ah: 108Wh vs 90Wh.
WeightThe 5.0Ah is the lightest at 0.79kg, the 5.5Ah the heaviest at 1.1kg.
Chemistry5.0Ah: Li-ion; 5.5Ah: Li-ion (cylindrical); 6.0Ah: Li-ion (cylindrical).
Good to know
Same toolsAll three fit every Milwaukee M18 tool.
Same chargersM18DBSC, M18MDBSC, M12-18FC, M18DFC, M18PC6, M18MPC6, M12-18AC and M1418C6 charge all three. Charge times are in the specs below.
Energy
M18HB5-CR
90Wh
M18HB5.5
99Wh
M18FB6
108Wh
Maker figure, or volts × Ah where they don't publish one. Ah and Wh explained ›
Weight
M18HB5-CR
0.79kg
M18HB5.5
1.1kg
M18FB6
1.03kg
Price per Ah
M18HB5-CR
No price yet
M18HB5.5
£18.17
M18FB6
£33.33
Lowest price we track ÷ Ah. Full specs
M18HB5-CRM18HB5.5M18FB6
Voltage18V18V18V
Capacity5.0Ah5.5Ah6.0Ah
Energy90Wh (worked out)99Wh108Wh
Weight0.79kg1.1kg1.03kg
Energy for its weight115Wh/kg (worked out)90Wh/kg (worked out)105Wh/kg (worked out)
ChemistryLi-ionLi-ion (cylindrical)Li-ion (cylindrical)
Cell typeNot listedNot listedTabless
Fuel gaugeYesYesYes
Size (L × W × H)Not listedNot listedNot listed
Charge time, M18DBSC, M18MDBSC39 min35 min25 min
Charge time, M12-18FC, M18DFC, M18PC6, M18MPC659 min1 hr1 hr
Charge time, M12-18AC1 hr 40 min2 hr 10 min2 hr 10 min
Charge time, M1418C61 hr 40 min2 hr 5 min2 hr 5 min
Lowest priceNo retailer price yet£99.95£199.95
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 ›