Makita 10.8V 4.0Ah Replacement Battery BL1040 BL1020B BL1030B | 3S2P High Capacity Li-Ion | 12V MAX CXT Compatible

Product Description

Power Up Your Makita CXT Tools — Run Twice as Long

Tired of stopping mid-job to swap batteries? This 10.8V 4.0Ah high-capacity replacement battery is built to keep your Makita CXT tools running at full power, longer than ever before.

Why Choose This Battery?

Engineered with a 3S2P lithium-ion cell configuration — 3 cells in series, 2 in parallel — this battery delivers a full 4,000mAh capacity, providing up to 2× the runtime of a standard 2.0Ah pack. Whether you’re drilling, driving, cutting, or fastening, this battery won’t quit before you do.

Plug In. Power On. No Compromises.

Designed as a direct drop-in replacement for Makita BL1040, BL1020B, and BL1030B, the slide-type connector locks securely into all Makita 10.8V and 12V MAX CXT platform tools and chargers — zero adapters, zero modifications, zero hassle.

Smart Protection Built In.

Every cell is monitored by an integrated Battery Management System (BMS) that actively prevents:

• Overcharging
• Over-discharging
• Short circuits
• Overheating

Your tools and battery stay protected — every single charge cycle.

Always Ready When You Are.

Low self-discharge technology means this battery holds its charge during storage. Leave it on the shelf for weeks — pick it up and go right back to work.

Specifications

In the Box

• 1 × 10.8V 4.0Ah Li-Ion Replacement Battery

Key Features at a Glance

• 4.0Ah High Capacity — 2× runtime vs standard 2.0Ah battery
• 3S2P cell design for stable, consistent power output
• Direct replacement for Makita BL1040, BL1020B, BL1030B
• Compatible with all Makita 10.8V / 12V MAX CXT tools and chargers
• Built-in BMS for full overcharge, over-discharge, and short circuit protection
• Low self-discharge — stays charged during long-term storage
• No adapter or modification required