Makita 18V Battery BL1860 BL1850B BL1830B 5–6Ah Li-Ion
Makita 18V Battery BL1860 BL1850B BL1830B 5–6Ah Li-Ion
Makita 18V High-Capacity Rechargeable Li-Ion Battery – BL1860 / BL1850B / BL1830B Series
Keep your Makita 18V power tools running longer with this high-capacity lithium-ion replacement battery. Available in 5.0Ah and 6.0Ah capacities, the MT-18V battery is engineered for extended runtime, fast charging compatibility, and lasting durability — perfect for professional tradespeople and serious DIYers alike.
Key Features
- High Capacity: Choose between 5000mAh (5.0Ah) or 6000mAh (6.0Ah) for up to 2.3× more runtime per charge compared to a standard 3.0Ah battery.
- Advanced Circuit Board: Features single-cell balance detection to ensure every cell charges and discharges evenly, preventing over-charge and over-discharge.
- Built-In CPU & Memory Chip: Automatically optimises the charging process to extend battery lifespan.
- Multi-Layer Protection: Safeguards against incorrect voltage, short circuits, and internal overheating — giving you peace of mind on every job.
- Shockproof Design: High-quality, impact-resistant casing built to handle tough job-site conditions.
- LED Charge Indicator: Check remaining power at a glance — no guessing when you need to recharge.
- Wide Charger Compatibility: Works with chargers accepting 110V–240V input (output: 14.4V–18V DC 3A). Compatible with 14.4V and 18V Li-ion chargers.
- Certified Quality: FCC, RoHS, CE, PSE, and TÜV certified for safety and performance.
Specifications
| Battery Type | Lithium-Ion (Li-Ion) |
| Nominal Voltage | 18V |
| Nominal Capacity | 5.0Ah / 6.0Ah |
| Model Number | MT-18V |
| Alternative Voltage Range | 14.4V – 18V |
| Charger Input | 110V – 240V (universal) |
| Charger Output | 14.4V – 18V DC 3A |
| Certifications | CE, FCC, RoHS, PSE, TÜV |
| Country of Origin | Made in Mainland China |
Replacement Battery Codes
194204-5, 194205-3, 194309-1, 194230-4, BL1815, BL1830, BL1840, BL1850, BL1860, LXT400
Compatible Makita Models (18V Series)
BL1815, BL1830, BL1840, BL1845, BL1850, BL1860 | BDF453SHE, BDF454Z, BHP452, BML184, BML185, BST221Z, BTDW251Z, ML185, TD140D, TW251D | BCS550 Series | BDA350 Series | BDF451 Series | BFR550 Series | BFR750 Series | BFS450 Series | BGA452 Series | BHP451 Series | BHP453 Series | BHP454 Series | BHR202 Series | BHR240 Series | BHR241 Series | BJR181 Series | BJR182 and more.
Note: Not compatible with 10.8V lithium battery chargers. Also compatible as a 14.4V alternative battery.
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Learn more: OSHA guidance on hand and power tools
Frequently Asked Questions
Q: Which Makita power tools are compatible with this 18V replacement battery?
A: This battery is compatible with a wide range of Makita 18V LXT series tools, including drills, impact drivers, angle grinders, circular saws, reciprocating saws, and many more models across the BDF, BHP, BHR, BJR, BGA, BFR, BFS, BCS, and BDA series. It replaces battery codes BL1815, BL1830, BL1840, BL1850, and BL1860, among others. Use Ctrl+F in the compatible models list to quickly find your specific model number.
Q: Is this battery compatible with any Makita charger?
A: This 18V Li-Ion battery is compatible with Makita chargers designed for 14.4V–18V lithium-ion batteries. The charger must accept 110V–240V input and output 14.4V–18V DC at 3A. It is NOT compatible with 10.8V lithium battery chargers. Always confirm your charger's voltage range before use.
Q: What protection does this battery have against damage?
A: The built-in advanced circuit board provides single-cell balance detection, over-charge and over-discharge prevention, short-circuit protection, incorrect voltage protection, and internal overheating protection. A built-in CPU and memory chip further optimise every charge cycle to maximise battery lifespan.
Q: How do I know how much charge is remaining in the battery?
A: This battery features an LED charge indicator that lets you check the remaining power level at any time — so you always know when it's time to recharge before heading back to the 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.