The Makita BL1850B is a high-capacity 18V lithium-ion battery designed to deliver longer run time and faster charging for Makita's LXT® cordless tools. With a 5.0Ah capacity, it provides up to 65% more run time per charge compared to the BL1830, allowing you to work longer between charges. The battery reaches a full charge in just 45 minutes with the Makita Rapid Optimum Charger, minimising downtime and maximizing productivity.
Equipped with an integrated LED charge level indicator, the BL1850B lets you monitor the remaining power with ease. Its durable construction includes an impact-resistant outer case and shock-absorbing inner liner, ensuring reliable performance even in harsh job site conditions.
Key Features:
High Capacity: 5.0Ah provides up to 65% more run time per charge compared to the BL1830.
Fast Charging: Reaches full charge in 45 minutes or less with Makita Rapid Optimum Charger.
LED Charge Indicator: Built-in LED lights display battery charge level.
Durable Construction: Impact-resistant outer case and shock-absorbing inner liner.
Extreme Temperature Performance: Operates in temperatures as low as -4°F (-20°C).
STAR Protection Technology: Communication between tool and battery protects against overloading, over-discharging, and overheating.
Specifications:
Voltage: 18V
Capacity: 5.0Ah
Charge Time: 45 minutes
Weight: 0.68 kg (1.5 lbs)
Dimensions (L x W x H): 4.25" x 6.5" x 6.75"
Compatibility: Compatible with all Makita 18V LXT® tools and chargers.
Applications:
Ideal for professionals using Makita 18V LXT® cordless tools.
Suitable for applications requiring extended run time and quick charging.
Perfect for construction, woodworking, automotive, and general maintenance tasks.

Feature Specification
Voltage 18V
Capacity 5.0Ah
Charge Time 45 minutes
Weight 0.68 kg (1.5 lbs)
Dimensions (L x W x H) 4.25" x 6.5" x 6.75"
LED Charge Indicator Yes
Extreme Temperature Use Yes, down to -4°F (-20°C)
STAR Protection Yes
Compatibility All Makita 18V LXT® tools and chargers