The Outxe Savage 20,000 mAh battery pack looks more like an Otterbox case in that it’s designed to withstand a few floor drops—and maybe even a quick dip in a stream or pool thanks to its IP67 rating. The tough exterior is covered in plastic, with a bumper system protecting the corners and perimeter of the battery pack.
On top, you’ll find a power button and six indicator lights, each one representing different charge levels for the pack. To the left of the power button sit two input ports, one USB-C and one microUSB. Either port can be used on its own to charge the pack, or you can use the ports simultaneously to increase charging speed.
In our test, we charged the pack using only the USB-C port and it took 9 hours and 40 minutes to completely charge. However, when we used both ports, we were able to cut nearly three hours off that time, for a total of 6 hours and 50 minutes to fully recharge the pack.