Makita BL1860B 18V LXT Lithium-Ion 6.0Ah

Makita BL1860B 18V LXT 6.0Ah Battery

The BL1860B is Makita’s high-capacity 18V LXT battery pack, built to maximize runtime on demanding tools without changing platforms. It pairs well with saws, grinders, rotary hammers, and 18V X2 (36V) equipment that use two 18V packs.

At a glance

• Voltage/Capacity: 18V, 6.0Ah (approx. 108 Wh)
• Charge time: ~55 minutes on Makita Rapid Optimum Chargers (e.g., DC18RC, DC18RD)
• Gauge: 4-LED fuel indicator (the “B” version includes the gauge)
• Electronics: Star Protection Computer Controls for overload, over-discharge, and overheat protection
• Compatibility: All Makita 18V LXT tools; also for 18V X2 tools that require two batteries
• Not compatible with: 12V CXT or 40Vmax XGT tools/chargers

When to choose it

• High-drain work where you want fewer battery swaps (circular/recip saws, grinders, mowers, blower)
• Remote jobsites with limited charging access
• 18V X2 (36V) tools—use two matched BL1860B packs for balanced performance

Consider instead

• BL1850B (5.0Ah): Lighter feel with only ~20% less runtime; good for drivers and overhead work
• BL1830B/BL1840B (3.0Ah/4.0Ah): Lower weight for compact tools and repetitive fastening
• Makita XGT (40Vmax) system: If you frequently stall heavy-duty tools and are open to switching platforms (not cross-compatible with LXT)

Runtime expectations

Runtime scales with amp-hours. Compared to other LXT packs:

Capacity	Approx. runtime vs 6.0Ah
3.0Ah	~50%
4.0Ah	~67%
5.0Ah	~83%
6.0Ah	100%

Moving from 5.0Ah to 6.0Ah typically yields about 20% more cuts, holes, or grinding time per charge.

Charging and care

• Use genuine Makita LXT chargers. Rapid Optimum models actively control temperature and voltage for faster, safer charging.
• Charge in 50–104°F (10–40°C). Let the pack cool to room temperature after heavy use before charging.
• Storage: Keep in a dry location at ~40–60% state of charge; top up every 3–6 months.
• Protection: Keep terminals covered, avoid impacts, and do not expose to rain or submersion.

Best practices

• For dual-battery (18V X2) tools, use two batteries of the same capacity and similar age/charge to avoid imbalance.
• Avoid routinely running to automatic shutoff; recharge when you reach one LED to reduce heat stress.
• Match battery size to the task: use BL1860B for saws and grinders; smaller packs for compact drivers to reduce fatigue.

Safety notes

• Do not open, crush, or short the battery. Inspect the housing and terminals before use.
• Only charge on Makita-approved LXT chargers in ventilated areas.
• Travel: At ~108 Wh, some airlines require approval for carry-on transport of spare batteries. Check current airline and regulatory rules.

FAQ

• What’s the difference between BL1860 and BL1860B? The “B” version adds a built-in 4-LED fuel gauge; compatibility and performance are otherwise similar.
• Will it work with my older 18V LXT tools? Yes, it’s compatible across the 18V LXT platform. Use an LXT lithium-ion charger for best results.
• Can I charge it on a dual-port charger? Yes. Dual-port Makita LXT chargers (e.g., DC18RD) can charge two packs simultaneously.
• Is mixing battery capacities OK on 18V X2 tools? Avoid it. Use two packs of the same capacity and similar age/charge for consistent performance and runtime.
• How can I maximize battery life? Keep it cool, avoid deep discharges, store partially charged, and use the correct charger in the recommended temperature range.