Using the Milwaukee 2161 - 21 flashlight is a breeze. To turn it on, just press the multi - functional power button. You can select different light modes by pressing the button multiple times. For adjusting the beam, simply twist the front part of the flashlight. When it's time to recharge, you can use the Micro USB cable to charge the battery right in the flashlight, or you can swap out the battery with another REDLITHIUM™ USB Battery. As for maintenance, keep it clean by wiping it with a dry cloth. Don't expose it to extreme temperatures. And remember, this flashlight is built tough, but try to avoid unnecessary drops. It's covered by a limited lifetime warranty, so if you have any issues, you're in good hands.
