NEW Genuine Makita 18v 5.0Ah Li-ion Battery Features The Makita BL1850B 5.0ah 18v li-ion battery lithium ion 5 amp LXT uses an optimum charging system that will outperform previous Makita li-ion batteries like the BL1830 & BL1840. What are the benefits of the new "Star" Battery: The demanding applications you take on every day are also demanding on your cordless tools and batteries. You rely on your tools, so Makita created STAR Protection Computer Controls™. STAR Protection is communication technology that allows the tool and battery to monitor conditions and exchange data in real time to protect against Overloading, Over-Discharging and Over-heating. Look for Makita tools and batteries with the STAR and get these protection features. OVERLOAD PROTECTION High-drain applications require maximum battery power. Makita tools and batteries are engineered for industrial applications, but sustained peak demand can overload the tool. Makita’s STAR Protection Computer Controls™ allow the