I found this for the ego-t. Maybe it'll help.

Starting with your EGO-T starter kit!


STEP #1: Charge the batteries!

The batteries in your EGO-T charger come with some battery power from the manufacture, but it is recommended to charge your batteries to full capacity before their first use.

MANUFACTURES CHARGING RECOMMENDATIONS FOR NEW BATTERY:

Charge for 8 hours - continue charging even if USB charger light turns green
Remove and use for 20 minutes
Charge for an additional 1 hour
To charge the batteries you can use a standard USB plug from any computer, laptop, PS3, etc. use a wall outlet using the AC adapter. Charge time for a dead battery are approximately 2-3 hours.

NOTE: Not all USB ports are the same. It is recommend to use only USB ports that are directly connected to the computer and not extension USB ports. The voltage required for the USB charger may not be met by some laptop and extension USB connections.

- See more at: http://www.canadavapes.com/instructions/ego-t/#sthash.2dJ5yKPl.dpuf