Makita 18V 3.0Ah Li-Ion Battery BL1830 BL1840 BL1850 Compatible

Makita 18V 3.0Ah Rechargeable Li-Ion Battery

Keep your Makita 18V power tools running at full capacity with this high-performance 3.0Ah lithium-ion replacement battery. Engineered with an advanced circuit board featuring single-cell balance detection, this battery ensures every cell charges and discharges evenly — maximizing performance and extending overall battery life. Compatible with a wide range of Makita 18V tools, it's the dependable backup power source every tradesperson and DIY enthusiast needs.

Made in Mainland China.

Key Specifications

• Battery Type: Lithium-Ion (Li-Ion)
• Nominal Voltage: 18V
• Nominal Capacity: 3.0Ah / 3000mAh
• Charger Input: 110V–240V (Universal)
• Charger Output: 14.4V–18V DC 3A
• Compatible Battery Range: 14.4V–18V Li-Ion
• Certifications: CE, FCC, RoHS, PSE, TUV
• Model Number: MT-18V

Features & Benefits

• Advanced Cell Balance Technology: Single-cell balance detection prevents over-charge and over-discharge across every cell for extended battery lifespan.
• Built-In Memory Chip & CPU: Automatically optimises the charging process to protect battery health over time.
• Multi-Layer Protection: Safeguards against incorrect voltage, short circuit, and internal overheating.
• Rugged, Shockproof Casing: High-quality materials with a shockproof design built to withstand demanding job-site conditions.
• LED Power Indicator: Check remaining charge at a glance — never be caught off-guard mid-task again.
• Wide Compatibility: Fits a broad range of Makita 18V and 14.4V tools (see compatible models below).
• Universal Charger Compatibility: Works with 110V–240V chargers for use anywhere in the world.

Compatible Battery Codes

BL1815, BL1830, BL1830B, BL1840, BL1840B, BL1845, BL1850, BL1850B, BL1860, LXT400, 194204-5, 194205-3, 194309-1, 194230-4

14.4V compatible codes: BL1415, BL1430, BL1440, BL1445, BL1460

Note: Not compatible with 10.8V lithium battery chargers.

Compatible Makita Tool Models (Selected)

BDF453SHE, BDF454Z, BHP452, BML184, BML185, BST221Z, BTDW251Z, ML185, TD140D, TW251D, BCS550, BCS550Z, BDA350, BDA350Z, BDF451, BDF451Z, BFR550L, BFR550Z, BFR750, BFR750L, BFR750Z, BFS450, BFS450RFE, BFS450Z, BGA452, BGA452Z, BHP451, BHP451SFE, BHP451Z, BHP453, BHP453SHE, BHP454, BHP454Z, BHR202, BHR202RFE, BHR202Z, BHR240, BHR240Z, BHR241, BHR241Z, BJR181, BJR181X, BJR181X1, BJR181Z, BJR182, and more Makita 18V tools.

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Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: Is this Makita 18V 3.0Ah battery compatible with all Makita 18V power tools?

A: This battery is compatible with a wide range of Makita 18V tools, including drills, drivers, reciprocating saws, grinders, and more. It replaces Makita battery codes BL1815, BL1830, BL1830B, BL1840, BL1840B, BL1850, BL1850B, BL1860, and LXT400. Please check the compatible models list above to confirm your specific tool model is supported before purchasing.

Q: Can I use my existing Makita charger with this battery?

A: Yes. This 18V Li-Ion battery is designed to work with standard Makita 14.4V–18V chargers. The charger accepts 110V–240V input (universal), making it suitable for use worldwide. Please note: it is NOT compatible with 10.8V Makita lithium battery chargers.

Q: What built-in protections does this battery include?

A: This battery features multi-layer protection including safeguards against incorrect voltage, short circuits, and internal overheating. It also includes a built-in memory chip and CPU that automatically optimises the charging cycle, as well as single-cell balance detection to prevent over-charging or over-discharging of individual cells.

Q: Does this battery have a charge level indicator?

A: Yes! The battery includes an LED power indicator so you can check remaining charge at any time without needing to insert it into a tool — ideal for managing multiple batteries on a job site.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.