Kumiho eGo passthrough can work constantly at 4.2v for hours non stop and do not need to be charged when it works on a computer.
The passthrough can work as a regular battery too without using the USB cord.
The passthrough has a regular 510/eGo connector and can fit a variety of 510/eGo atomizers or tanks, or clearomizers.
Like eGo-C battery, this passthrough also has 3 kinds of Protections:
1. Short Circuit Protection: When short circuit happens, the battery will shut down. The battery won't go back to work until short circuit ends.
2. Atomizer Protection: If you press the button for 10 seconds, the battery will be locked until the next press.
3. Low Voltage Protection: When the battery voltage is lower than 3.3v, the batery will shut down.
If the button light is white, it means that the battery's left power is more than 80%.
If the button light is blue, it means that the battery's left power is 80%-30%.
If the button light is red, it means that the battery's left power is less than 30%.