Makita BL1840B-2 18V LXT Lithium-Ion 4.0Ah Battery, 2 Pack

This product includes two high - performance 18V LXT Lithium - Ion 4.0Ah batteries. The integrated LED battery charge level indicator enables you to easily keep track of the battery charge. Compared to the BL1830, it offers up to 35% more runtime per charge. It can reach a full charge in just 40 minutes or less. These batteries are only compatible with Star Protection tools, which are marked by the Star Symbol™ and/or a yellow battery receiver under the tool. They provide consistent power and runtime even in extreme cold, down to -4°F (-20°C). Equipped with Star Protection Computer Controls™, they are safeguarded against overloading, over - discharging, and over - heating. The impact - resistant outer case and shock - absorbing inner liner protect the battery from damage. Sixteen contact terminals ensure a stable connection with the tool, preventing power loss or fluctuation during high - vibration tasks. They resist self - discharge, so they're ready for use even after long periods of storage. Makita's 18V Lithium - Ion battery powers the world's largest cordless tool lineup. With Makita's advanced technology, these batteries have a category - leading charge time, spending more time working and less time on the charger (charger not included). They also come with a 3 - year limited warranty.

Using these Makita 18V LXT Lithium - Ion 4.0Ah batteries is easy. First, make sure your tool is compatible with Star Protection, which you can check by looking for the Star Symbol™ or a yellow battery receiver under the tool. Insert the battery into the tool until it clicks into place. You can use the integrated LED indicator to monitor the charge level. When the battery runs low, remove it from the tool and charge it. It should reach a full charge in 40 minutes or less. Note that these batteries are only for use with compatible Star Protection tools. Don't expose them to extreme heat or cold for long periods. To maintain the batteries, store them in a cool, dry place. They resist self - discharge, but it's still a good idea to give them a charge every few months if they're not in use. If you notice any signs of damage, stop using the battery and contact Makita customer service. The batteries come with a 3 - year limited warranty, so you can use them with confidence.