About this item This fits your . Make sure this fits by entering your model number. 【Wide Compatibility】: Replacement for Milwaukee M-18 battery 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828, 48-11-1840, 48-11-1841, etc. Also work for original cordless tools 2646-22CT 2643-21CT 2705-22 2704-20 2706-20, etc, as well as chargers 48-59-1812/48-59-1808/48-59-1802/48-59-1808/48-59/1806. 【Durable Material】: Made of sturdy ABS + PC material case, which protects this battery from inevitable knocks and scrapes at use to prolong the battery life. Help you reduce the times of battery replacement. 【Smart Converter】: Compatible with Milwaukee M-18 batteries, our inverter turns batteries into portable power stations 110-150w. For devices with their own power supply and below 100w, our products can provide charging stably and quickly. Meanwhile, for devices without power supply, our products support up to 150w max charging. It can easily charge various devices while working outdoors and camping. 【Powerful Power Bank】: Our inverter has the various ports needed to charge devices and appliances, which is equipped with an AC port 110-120v, Type-c port 5V 3A, 2 USB-A ports 5V 3A. It can convert batteries to power bank to quickly charge your phone without the bulky adapter. Comprehensive Protection】: Made of ultra performance battery cells and provides over discharge protection, over heat protection, short circuit protection, over current protection, over voltage protection and over charge protection. You can use it safely with your original tools.