Specs from the makers' own documentation Battery compatibility built in UK retailer prices, updated daily 25+ years of trade experience
‹ All Makita 12V CXT batteries
12V CXT Makita BL1021B
Fits
28 Makita 12V CXT toolsSee them ›
Charges
30 min on the DC10SB, the fastest of 2Charge times ›
Specs
From Makita's own documentationChecked 24 Sep 2026
Makita · 12V CXT platform

Makita BL1021B 12V max (10.8V nom) 2.0Ah CXT battery

2.0Ah 22Wh 0.21kg Fuel gauge

Makita 12V max CXT 2.0Ah slide pack with charge level indicator. 0.21kg.

Adds it to My Tools, kept on this device
Lowest price we track
£38.99at Machine Mart · + £4.99 delivery
View at Machine Mart ›
Compare retailersTotal with delivery
Machine Mart Lowest£38.99 + £4.99 delivery£43.98View ›
Tooled Up£38.95 + £6.95 delivery£45.90View ›
My Tool Shed£38.95 + £6.95 delivery£45.90View ›
Prices from UK retailer feeds, updated daily.We may earn a commission
2.0AhCapacitymaker figure
22WhEnergymaker figure
0.21kgWeightmaker figure
103Wh/kgEnergy for its weightworked out
£19.50Per Ahat the lowest price we track

Other sizes in this range

Same fit, same tools. Bigger packs run longer and weigh more. Pick the size for the job.

Compare both sizes ›All Makita 12V CXT batteries ›
ModelSizeEnergyWeightLowest pricePer Ah
BL1021B This one 2.0Ah 22Wh 0.21kg £38.99 £19.50 per Ah
BL1041B 4.0Ah 43Wh 0.38kg £49.00 £12.25 per Ah

Prices are the lowest we track at UK retailers, updated daily. Weights from Makita. Energy is Makita's figure, or worked out from volts × Ah where they don't publish one.

Full specs

From Makita's own documentation, checked 24/09/2026. "Not listed" where Makita doesn't publish a figure.

Voltage12V max (10.8V nom)
Capacity2.0Ah
Energy22Wh
ChemistryLi-ion (cylindrical)
Cell typeNot listed
Weight0.21kg
Size (L × W × H)87 × 64 × 37 mm
Fuel gaugeYes
Released2016
PlatformMakita 12V CXT
Model codeBL1021B

Charge times

Makita's own figures, fastest first. Each charger opens its own page.

DC10SBRapid charger
30 min
£52.00 at Machine Mart ›
DC10WDCharger
1 hr 10 min
£40.00 at Machine Mart ›

Makita's own figures. We may earn a commission

Fits these tools

Every Makita 12V CXT tool takes this pack. It won't fit other brands' tools.

All 28 Makita 12V CXT tools ›
Drill Drivers4 tools › Impact Wrenches4 tools › Jigsaws3 tools › Handheld Vacuums3 tools › Reciprocating Saws2 tools › SDS+ Hammer Drills2 tools › Impact Drivers2 tools › Combi Drills2 tools › Ratchets1 tool › Multi-Tools1 tool › Rotary Polishers1 tool › Pin Nailers1 tool › Angle Drills1 tool › Circular Saws1 tool ›

2.0Ah packs from other brands

Only useful if you haven't picked a platform yet: packs don't swap between brands. Shown on neutral figures only.

Not sure which platform? ›
BatteryEnergyWeightWh per kgLowest pricePer Ah
MakitaBL1021B 22Wh 0.21kg 103 £38.99£19.50
BoschGBA12V-20 24Wh 0.18kg 137 £46.99£23.50
Bosch Green1600A02N79 24Wh 0.19kg 129 £20.95£10.48
DeWaltDCB127 22Wh 0.22kg 98 No price yet
MilwaukeeM12B2 24Wh 0.2kg 120 £25.95£12.98

BL1021B questions

Which tools does the BL1021B fit?

It fits every Makita 12V CXT tool. It won't fit other brands' tools.

How long does the BL1021B take to charge?

From Makita's own figures: DC10SB: 30 min, DC10WD: 1 hr 10 min.

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