The eGo passthrough: has a 5 click on/off button, which can be used to prevent unwanted activation when the device is not in use.
When in the on position, you just push the button which will light up blue.
Simply unscrew the end cap and attach the USB cable, to use it as a pass through.
When you click 5 times to switch it off, it stops unwanted activation, though, you could still use it, whilst it is charging.
2:Through a 510 (USB) charger / Wall adapter whilst not in use, though not recommended
When used as a battery, you can click 5 times to switch it off to stop unwanted activation.
We recommend you only charge with the USB cable through the USB connection at the end of the battery, and not through the 510 connection!
Note: These devices do not come with a charger and therefore a charger will have to be purchased separately You can
find a Fast Charger and/ or a Wall mounted USB plug here