ENL-MA1830 18V 3.0Ah / 4.0Ah / 5.0Ah / 6.0Ah Li-ion Power Tool Replacement Battery BL1830B BL1840B BL1850B BL1860B for Makita 18V Cordless Power Tools BSS610 / BTD144 / BTW450 / HR202D / JR120D and More

The ENL-MA1830 replacement battery is fully compatible with the following Makita 18V cordless power tool models:

✅ Four Capacity Grades, One 18V Platform
Direct replacement for the Makita OEM batteries BL1830B / BL1840B / BL1850B / BL1860B, purpose-built to cover 55 tools in a single SKU - circular saws (BSS501 / BSS610 / BSS611 series), the BJV180 vacuum, the BPB180 band saw, impact drivers (BTD140 / BTD144 / BTP140 series), impact wrenches (BTL061 / BTL063 / BTW251 / BTW253 / BTW450 series), the BUB182 blower, the BVR350 / BVR450 line, driver and hammer drills (DF454DZ / HP454 series), rotary hammers (HR202 series), reciprocating saws (JR120D series), the ML184 flashlight, MR100 / MR100W radios, PB108D vacuums and TD144 / TD251 drivers. Choose 3.0Ah 54Wh for the lightest rotation, or step up to 4.0Ah / 5.0Ah / 6.0Ah 108Wh for up to double the runtime per charge - all four grades share the same housing, weight class and slide interface, fully interchangeable.

✅ Built-in BMS, 5-Layer Protection
A built-in BMS protection circuit guards every pack against over-charge, over-discharge, over-current, short-circuit and over-temperature conditions - essential safeguards for high-capacity Li-ion cells under heavy jobsite loads. Premium high quality long-cycle Li-ion cells deliver stable 18V output with the sustained high-current discharge that cutting, driving and fastening demand, and Li-ion chemistry has no memory effect - top up anytime without capacity loss.

✅ Faithful OEM-Spec Fit, Rugged Black Housing
The 11.7*7.5*6.7 cm slide housing faithfully follows the original battery dimensions and latch geometry for a true plug-and-play fit - slide the pack on, hear the latch click, and the tool is ready to work. The black high impact ABS/PC composite shell is anti-drop, dustproof and moisture resistant, and every pack passes 100% aging testing before shipment with a 12-month full quality warranty.

• ⭐ Makita BL1830B / BL1840B / BL1850B / BL1860B Replacement - Four OEM packs covered by one SKU, drop-in fit across all 55 listed models without modification
• ⭐ 3.0 / 4.0 / 5.0 / 6.0Ah Quad Capacity - 54Wh to 108Wh on the same platform: match the grade to the job, from light repairs to full-shift cutting and driving
• ⭐ BMS 5-Layer Protection - Over-charge, over-discharge, over-current, short-circuit and over-temperature protection built in
• ⭐ No Memory Effect - Li-ion chemistry lets you top up anytime without capacity loss, ideal for battery rotation on busy shifts
• ⭐ Rugged Jobsite Housing & Warranty - Black high impact ABS/PC shell, 100% aging tested before shipment, OEM private label available, 12-month full quality warranty

• ⚠ Do not disassemble, puncture, crush or modify the battery housing - internal cell damage may cause electrolyte leakage, overheating or fire. Stop using the battery immediately if you notice unusual heat, odor, swelling or deformation, and move it to a safe non-flammable area away from combustibles.

• ⚠ Keep battery terminals away from metal objects such as screws, nails, coins and keys to prevent accidental short-circuit - a particular risk in tool boxes and on jobsites. Do not expose the battery to high temperature, direct sunlight or open flame for extended periods, and never leave it inside a hot vehicle.

• ⚠ Only charge with a Makita 18V Li-ion compatible charger (CC/CV charging logic) designed for the BL1830B / BL1840B / BL1850B / BL1860B battery family. Do NOT use Ni-CD or Ni-MH chargers on this Li-ion battery - the charging logic is completely different and may cause under-charge, overheating, permanent damage or safety hazards.

• ⚠ Let the pack cool down after heavy use before recharging, and charge in a dry area at room temperature. For long-term storage, keep the pack at roughly half charge in a cool dry place and check it every 2-3 months. Do not store a fully depleted pack for extended periods. Dispose of spent packs at an authorized battery recycling collection point in compliance with local regulations - do not put them in household waste.