The Makita 18V LXT Lithium-Ion 5.0Ah Power Tool Battery charges faster and works longer than standard lithium-ion batteries, giving you and your cordless tools unmatched performance and productivity to take on the most demanding applications. The heavy-duty power tool battery has a category-leading charge time of only 45 minutes, so it spends more time working and less time sitting on the charger. This power tool battery is also compatible only with Star Protection tools, indicated by the Star Symbol and/or yellow battery receiver under the tool. Integrated LED battery charge level indicator allows user to monitor battery charge Provides up to 65% more run time per charge compared to BL1830 Reaches full charge in 45 minutes or less Compatible only with Star Protection tools, indicated by Star Symbol and/or yellow battery receiver under tool Battery delivers consistent power and run time in extreme temperatures, even in winter (-4 degrees F or -20 degrees C) Equipped with Star Protection Computer Controls to protect against overloading, over-discharging and over-heating Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect battery 16 contact terminals maintain constant connection with tool to help prevent power loss or fluctuation, even during high-vibration applications Battery resists self-discharge and remains ready for use even after long periods of storage World's largest cordless tool line-up powered by 18V Lithium-Ion slide-style battery Makita technology delivers category-leading charge time so battery spends more time working and less time sitting on the charger 3 year limited warranty Charger not included with the power tool battery