Makita BL1020 10.8V Battery — 4.0Ah Replacement for CXT Tools

Makita BL1020 10.8V Battery — Key Specifications

The Makita BL1020 10.8V battery is a direct plug-and-play replacement for the original Makita BL1020 and BL1020B battery packs, delivering high-capacity 4.0Ah performance — twice the runtime of the standard 2.0Ah OEM pack.

Model: BL1020 Voltage: 10.8V (12V MAX) Capacity: 4.0Ah Cell Configuration: 3S2P Cell Type: 18650 Lithium-Ion (Li-ion) Charging Voltage: 12.6V Dimensions: 87 × 56 × 64 mm Cycle Life: 1,000+ cycles Discharge Rate: 3C Operating Temperature: -10°C to 65°C Compatible Models: BL1020 / BL1015 / BL1040B / BL1020B Compatible Platform: Makita 10.8V / 12V MAX CXT Certifications: CE / FCC / RoHS / UN38.3 / MSDS MOQ: 100 pcs (OEM/ODM available)

Compatible Makita 10.8V CXT Tools

The Makita BL1020 10.8V battery fits all Makita 10.8V and 12V MAX CXT cordless tools with no modification or adapter needed, including drills and drill drivers, impact drivers and screwdrivers, angle grinders, circular saws, jigsaws, multi-tools, oscillating tools, cordless vacuum cleaners, LED worklights, and any other Makita 10.8V / 12V MAX CXT platform tool. For the full compatible tool list, visit the official Makita website.

Why Choose HNF Battery?

Double the Runtime of the Standard OEM Pack

The standard Makita BL1020B ships with just 2.0Ah. This 4.0Ah replacement doubles your runtime on a single charge — ideal for extended work sessions, job sites without easy access to power, or users who simply want fewer interruptions throughout the day.

3S2P Cell Configuration for Higher Capacity

The 3S2P design (3 cells in series, 2 in parallel) using premium 18650 lithium-ion cells delivers stable, consistent power output throughout the full discharge cycle. No performance drop-off as the battery depletes.

1,000-Cycle Lifespan

With a rated cycle life of 1,000+ charge cycles, this battery outlasts most generic alternatives by a wide margin. Lower replacement frequency means better long-term value for wholesale and OEM buyers.

Built-in BMS Protection

Every BL1020 10.8V battery includes a multi-layer Battery Management System (BMS) protecting against overcharge, over-discharge, over-current, overheating, and short circuit — safeguarding both your battery and your tools.

Low Self-Discharge

Advanced lithium-ion chemistry ensures the battery retains its charge during storage. Leave it on the shelf for weeks and it will be ready to use when you need it.

Drop-in Replacement — No Modification Needed

Engineered to the exact same slide-type connector and dimensions (87×56×64mm) as the original Makita BL1020 and BL1020B. Simply slide it into your tool and start working.

CE / FCC / RoHS / UN38.3 Certified

Our batteries carry CE, FCC, RoHS, and UN38.3 certifications, confirming compliance with international safety and environmental standards for the US, EU, and most global markets. MSDS documentation available upon request.

Factory Direct Pricing

HNF Battery manufactures directly with no middlemen. Whether you need 100 units or 10,000 units, we deliver consistent quality at competitive wholesale rates.

OEM & Custom Orders

HNF Battery supplies wholesale distributors, power tool retailers, and private-label brands worldwide. Custom capacity options (1.5Ah, 2.0Ah, 3.0Ah, 4.0Ah), branding, and packaging are available from 100 units. All batteries are pre-tested before shipment and backed by a 12-month warranty. Full export documentation provided including UN38.3 test reports and MSDS.

MOQ starts from 100 units. Samples are available before bulk orders. For a factory quote, visit our