Features and Benefits: Provides longer work time for increased performance and productivity. 55 minutes when using the Makita rapid charger with the added convenience of an LED charge level indicator. Same weight and size as the 5.0Ah, 4.0Ah and 3.0Ah batteries. STAR Protection Computer Controls™ Low self-discharge Energy storage capacity for long run times With overload, over discharge and overheating protection 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