The Makita BL1850B-2 is a two-pack of 18V LXT® Lithium-Ion 5.0Ah batteries designed for high-demand cordless applications. These batteries deliver up to 65% more run time per charge compared to the BL1830 model, making them ideal for extended use in professional environments. Each battery features an integrated LED charge level indicator for real-time monitoring and is engineered with an impact-resistant outer case and shock-absorbing inner liner to withstand harsh jobsite conditions. The BL1850B-2 is compatible exclusively with Makita tools that feature Star Protection, a system that communicates between tool and battery to prevent overloading, over-discharging, and overheating.

Charging efficiency is a standout feature, with each battery reaching full charge in 45 minutes or less when paired with the Makita Rapid Optimum Charger (sold separately). This charger uses smart technology to monitor current, voltage, and temperature during charging, and includes a built-in fan to cool the battery for faster and safer charging. The batteries maintain consistent power even in extreme temperatures down to -4°F (-20°C) and resist self-discharge, ensuring they remain ready for use after long storage periods. With sixteen contact terminals, they maintain a stable connection to the tool, minimizing power loss during high-vibration tasks.

Key Features:

• Two-pack of 18V LXT® Lithium-Ion 5.0Ah batteries
• Up to 65% more run time per charge vs. BL1830
• Full charge in 45 minutes or less
• Integrated LED charge level indicator
• Compatible only with Star Protection tools
• Operates in extreme temperatures (-4°F/-20°C)
• STAR Protection Computer Controls™ for overload, over-discharge, and overheating prevention
• Impact-resistant outer case and shock-absorbing inner liner
• Sixteen contact terminals for consistent power delivery
• Resists self-discharge for long-term storage readiness