Makita BL1840 18V 4.0Ah Replacement Rechargeable Battery Pack for Cordless Power Tools

BL1840 14.4V 4.0Ah Lithium-Ion Power Tool Battery

Keep your tools running longer with the BL1840 high-capacity replacement battery — engineered for professionals and DIY enthusiasts who demand reliable, long-lasting power.

Compatibility Designed as a direct replacement for BL1840-series battery packs, this 14.4V lithium-ion battery is compatible with a wide range of cordless power tools including angle grinders, electric drills, jigsaws, reciprocating saws, and more.

Key Features

• Voltage: 14.4V — optimal balance of power and runtime for mid-range cordless tools
• Capacity: 4.0Ah — extended runtime so you can work longer between charges
• Cell Type: Premium lithium-ion cells for stable, consistent power delivery
• Smart Protection Circuit: Built-in protection against overcharge, over-discharge, over-current, and short circuit to extend battery life and ensure safe operation
• Low Self-Discharge: Retains charge during storage, so it’s ready when you need it
• Lightweight Design: Compact and ergonomic, minimizing tool fatigue during extended use
• Fast Charging Compatible: Supports quick recharge cycles to minimize downtime

Performance You Can Count On Engineered with high-drain lithium cells, the BL1840 delivers consistent voltage output throughout the entire discharge cycle — no power drop-off as the battery depletes. Whether you’re grinding, drilling, or cutting, expect the same performance from the first minute to the last.

What’s in the Box

• 1 × BL1840 14.4V 4.0Ah Lithium-Ion Battery Pack