The genuine Joyetech Logo eGo T 1000mah USB battery/passthrough Upgrade 2 is a great unit to use whilst at your pc. You can vape and charge your battery at the same time. The battery has a small end cap that screws on, so you can take your battery on the go with you. Supports a heavy vapor for up to 8 hours on a single charge. This battery has 5 Click protection to turn it on and off. 1000mah Battery. 6 months guarantee (return postage not included, excludes USB cable).
Whilst using as passthrough or charging a red light will emit at the bottom of the unit, which indicates that the battery is charging. When the light goes out the battery is fully charged.
The Upgrade and improvements are as follows :-
Two operating modes - One is the constant voltage output mode which gives constant 3.3V(when it's driving the atomizer (load added) and is the same as the normal eGo-C battery. The other is variable voltage output mode, in this mode, the voltage will change from 4.15V to 3.6V as the lithium battery power decrease. With higher voltage up to 4.15V, this give you a better vapor feeling. Meanwhile, it is easier to switch, check below:
Switching operation and features:
1. From constant voltage output mode to new battery voltage voltage output:
1.1 When the mode is 3.3v constant output mode, lock the battery by 5 clicks first(blue LED blinks 3 times).
1.2 By pressing button for 5 seconds(not 5 clicks), LED will change to orange with 3 blinks. The battery has switched to variable voltage output mode(battery voltage output mode).
1.3 Then click 5 times, then you can smoke in battery voltage output.
1.4 In new battery voltage output mode, the LED is orange and battery doesn't have power display function.
1.5 When charging, orange LED will blink 5 times in this new mode.
2. From new battery voltage output to constant voltage output mode:
2.1 In new battery voltage output mode, lock the battery by 5 clicks first(orange LED blinks 3 times).
2.2 By pressing button for 5 seconds(not 5 clicks), LED will change to blue with 3 blinks. And the mode has switched to 3.3V constant voltage output mode.
2.3 Then click 5 times and smoke in 3.3V constant voltage.
2.4 In 3.3V constant voltage, the battery features has no difference from present eGo-C battery.
2.5 When charging, blue LED blinks 5 times in this new mode.