GBA18V-30 vs EXBA18V-40 vs GBA18V-40
Same fit: these run the same tools
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They differ in 3 of 4 areas
Same tools, so this is about size, weight and cost. No overall winner: pick the size that suits the job.
EnergyThe EXBA18V-40 stores 33% more than the GBA18V-30: 72Wh vs 54Wh.
SizeGBA18V-30 115 × 74 × 56mm; EXBA18V-40 121 × 80 × 51mm; GBA18V-40 114 × 74 × 56mm (L × W × H).
ChemistryGBA18V-30: Li-ion; EXBA18V-40: Li-ion (cylindrical); GBA18V-40: Li-ion (cylindrical).
Good to know
Same toolsAll three fit every Bosch 18V Professional tool.
Weight0.6 to 0.61kg: too close to call.
Energy
GBA18V-30
54Wh
EXBA18V-40
72Wh
GBA18V-40
72Wh
Maker figure, or volts × Ah where they don't publish one. Ah and Wh explained ›
Weight
GBA18V-30
0.6kg
EXBA18V-40
0.61kg
GBA18V-40
0.6kg
Within 0.1kg: too close to call. Full specs
GBA18V-30EXBA18V-40GBA18V-40
Voltage18V18V18V
Capacity3.0Ah4.0Ah4.0Ah
Energy54Wh (worked out)72Wh72Wh
Weight0.6kg0.61kg0.6kg
Energy for its weight90Wh/kg (worked out)119Wh/kg (worked out)120Wh/kg (worked out)
ChemistryLi-ionLi-ion (cylindrical)Li-ion (cylindrical)
Cell typeNot listedNot listedNot listed
Fuel gaugeNot listedYesYes
Size (L × W × H)115 × 74 × 56 mm121 × 80 × 51 mm114 × 74 × 56 mm
Lowest priceNo retailer price yetNo retailer price yet£73.99
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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