2.0Ah vs 3.0Ah vs 6.0Ah
Same fit: these run the same tools
BOSCH 12V PROFESSIONAL
GBA12V-20
2.0Ah · 24Wh · 0.18kg
£46.99from 3 retailers
View at Machine Mart ›
BOSCH 12V PROFESSIONAL
GBA12V-30
3.0Ah · 36Wh · 0.18kg
£55.00from 3 retailers
View at Machine Mart ›
BOSCH 12V PROFESSIONAL
GBA12V-60
6.0Ah · 72Wh · 0.39kg
£79.99from 3 retailers
View at Machine Mart ›
Lowest price we track at UK retailers, updated daily. We may earn a commission
They differ in 4 of 5 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 200% more than the 2.0Ah: 72Wh vs 24Wh.
WeightThe 2.0Ah is the lightest at 0.18kg, the 6.0Ah the heaviest at 0.39kg.
PriceThe 2.0Ah is the cheapest of the three today, at £46.99.
Price per Ah6.0Ah £13.33, 3.0Ah £18.33, 2.0Ah £23.50.
Good to know
Same toolsAll three fit every Bosch 12V Professional tool.
Same chargersGAL12V18V-80, GAL12V-40 and GAL12V-20 charge all three. Charge times are in the specs below.
Energy
GBA12V-20
24Wh
GBA12V-30
36Wh
GBA12V-60
72Wh
Maker figure, or volts × Ah where they don't publish one. Ah and Wh explained ›
Weight
GBA12V-20
0.18kg
GBA12V-30
0.18kg
GBA12V-60
0.39kg
Price per Ah
GBA12V-20
£23.50
GBA12V-30
£18.33
GBA12V-60
£13.33
Lowest price we track ÷ Ah. Full specs
GBA12V-20GBA12V-30GBA12V-60
Voltage12V12V12V
Capacity2.0Ah3.0Ah6.0Ah
Energy24Wh36Wh72Wh
Weight0.18kg0.18kg0.39kg
Energy for its weight137Wh/kg (worked out)200Wh/kg (worked out)187Wh/kg (worked out)
ChemistryLi-ion (cylindrical)Li-ion (cylindrical)Li-ion (cylindrical)
Cell typeNot listedNot listedNot listed
Fuel gaugeNot listedNot listedNot listed
Size (L × W × H)Not listed50 × 47 × 86 mm84 × 65 × 107 mm
Charge time, GAL12V18V-8034 min54 min57 min
Charge time, GAL12V-4035 min57 min1 hr 37 min
Charge time, GAL12V-201 hr 5 min1 hr 35 min3 hr 5 min
Lowest price£46.99£55.00£79.99
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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