Makita BL1850B 18V LXT Lithium-Ion 5.0Ah Battery – LED Charge Indicator, Fast Charging, Star Protection

The Makita BL1850B 18V LXT Lithium-Ion 5.0Ah Battery delivers industry-leading performance, extended runtime, and fast charging for the most demanding cordless tool applications. Offering 65% more runtime per charge compared to the BL1830, this high-capacity battery fully charges in 45 minutes or less with the Makita Rapid Optimum Charger (sold separately).

Engineered with Star Protection Computer Controls, the BL1850B communicates in real time with compatible tools to protect against overloading, over-discharging, and overheating. Its integrated LED charge level indicator allows quick power checks on the job site, while the impact-resistant outer case and shock-absorbing inner liner safeguard the battery in high-vibration conditions.

Designed to perform in extreme temperatures (as low as -4°F / -20°C), the BL1850B maintains consistent power output for reliable operation year-round. Compatible only with Makita Star Protection tools—identified by the Star Symbol and/or yellow battery receiver—this battery is part of the world’s largest 18V lithium-ion cordless tool lineup.

Key Features:

High-Capacity Power: 5.0Ah for 65% more runtime than the BL1830

Rapid Charging: Full charge in 45 minutes or less with Makita Rapid Optimum Charger

Star Protection Technology: Prevents overloading, over-discharging, and overheating

LED Charge Indicator: Easily monitor battery status

Durable Construction: Impact-resistant case and shock-absorbing liner

Consistent Performance: Reliable power in extreme temperatures (-4°F / -20°C)

Long Shelf Life: Resists self-discharge for readiness after long storage

Universal LXT Compatibility: Fits all Makita 18V LXT Star Protection tools

Specifications:

Brand: Makita

Model: BL1850B

Battery Type: Lithium-Ion

Voltage: 18V

Capacity: 5.0Ah

Charge Time: ~45 minutes

Weight: 1.4 lbs

Dimensions: 3" x 6.75" x 9.75"

Operating Temp: Down to -4°F (-20°C)

Compatibility: Makita Star Protection tools only

Application: Powering cordless drills, saws, impact drivers, and other LXT tools

Perfect For: Contractors, builders, and tradespeople who demand maximum runtime, fast charging, and dependable performance from their Makita 18V LXT cordless tools.