Makita 18V Li-Ion 5000mAh Battery purchased inexpensively from Mercateo

Provides up to 65% more run time per charge compared to the 18V 3.0Ah battery (BL1830)
- Compatible only with Star Protection tools, indicated by the Star Symbol™ and/or Yellow Battery Receiver under the tool
- Reaches a full charge in 45 minutes or less on the Makita Rapid Optimum Charger (sold separately)
- Battery delivers constant power and run time in extreme temperatures, even in winter (-4º F/ -20º C)
- STAR Protection Computer Controls(TM) allow the tool and battery to monitor conditions during use and exchange data in real time to protect against overloading, over-discharging and overheating
- The Makita Rapid Optimum Charger (sold separately) communicates with battery's built-in chip throughout the charging process to optimize battery life by actively controlling current, voltage and temperature
- Impact-resistant outer case and shock-absorbing inner-liner are engineered to protect the battery
- Sixteen contact terminals maintain a constant connection with the 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
- Makita 18V Lithium-Ion is the world's largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery
- 3-year limited warranty