Makita BL1040 10.8V Battery — 4.0Ah Replacement for CXT Tools

Makita BL1040 10.8V Battery — Key Specifications

The Makita BL1040 10.8V battery is a direct plug-and-play replacement for Makita 10.8V / 12V MAX CXT cordless tool batteries, featuring a 3S2P cell configuration for stable, high-capacity 4.0Ah performance.

Voltage: 10.8V (12V MAX) Capacity: 4.0Ah Cell Configuration: 3S2P (3 cells in series, 2 in parallel) Cell Type: Lithium-Ion (Li-ion) Connector Type: Slide-type Compatible Models: BL1040 / BL1020B / BL1030B Compatible Platform: Makita 10.8V / 12V MAX CXT Certifications: CE / RoHS MOQ: 100 pcs (OEM/ODM available)

Compatible Makita 10.8V CXT Tools

The Makita BL1040 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, reciprocating saws and jigsaws, circular saws, 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?

3S2P Configuration for Higher Capacity

The 3S2P cell design (3 cells in series, 2 in parallel) delivers a full 4.0Ah capacity — up to 2x the runtime of a standard 2.0Ah pack. This makes it ideal for extended work sessions where frequent battery swaps are not practical.

Grade-A Cells for Consistent Performance

We use only Grade-A lithium-ion cells in every Makita BL1040 10.8V battery. Grade-A cells deliver stable voltage output, longer cycle life (500+ charge cycles), and lower self-discharge compared to generic replacements. Your tools run at full power longer and your battery lasts for years, not months.

Built-in BMS Protection

Every battery includes a fully integrated Battery Management System (BMS) protecting against overcharge, over-discharge, short circuit, and overheating — safeguarding both your battery and your tools from electrical faults.

Low Self-Discharge

Advanced low self-discharge technology means 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 as the original Makita BL1040, BL1020B, and BL1030B. Simply slide it into your tool and start working.

CE / RoHS Certified

Our batteries carry CE and RoHS certifications, confirming compliance with international safety and environmental standards. UN38.3 test reports are available upon request for air freight shipments.

OEM & Custom Orders

HNF Battery supplies wholesale distributors, power tool retailers, and private-label brands worldwide. Custom capacity options (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.

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