Makita BL1840B 18V battery Review

Makita's BL1840B 18V LXT Lithium-Ion 4.0Ah Battery comes with an integrated L.E.D. battery charge level indicator that allows the user to monitor the battery charge. It also provides up to 35% more runtime per charge compared to its predecessor, the BL1830 model. Reaching full charge in 40 minutes or less, the Makita BL1840B is designed to work with Star Protection tools that have a yellow-colored battery receiver or feature the Star Symbol. This battery delivers consistent power and run time in extreme temperatures, even in winter (-4°F/-20°C). By resisting self-discharge, this battery can be used even after long periods of storage. Makita has optimized the battery's charging time, and it comes with a built-in fan to cool the battery for both fast and efficient charging, even in hot weather conditions.Created to improve tool performance and extend battery life, Makita presents the STAR Protection Computer Controls. This revolutionary communication technology enables the battery and tool to exchange data in real-time, monitor each other's conditions during usage and protect against overloading, over-discharging, and overheating.