For starters: I got one of these in Black, and I really like it. I have been vaping it about a month now with a bunch of different atomizers/clearos. The power output is great and I tested it on the digital meter and got 2.995V-6.05V and have pulled 2A. I feel like the passthrough works fantastically even though it's drawing off of the battery power, I have never had a problem where it runs out of battery or anything like that. In fact I think it's better that the battery acts as a capacitor for the passthrough. It's pretty light, and the form factor (when not tethered) is excellent. Not to mention the price.
However, there are a *few* small problems...
1. The bottom metal piece on my Battery that protects the USB port fell off somewhere, somehow, and I simply can't find it or fix it. Besides being cosmetically irritating and having to see the blue light pass through the bottom, the screen/usb jack assembly has begun to continually down and lock the + voltage button in place at times causing the VV to scroll through voltages and trip me up. I have to constantly readjust and push the plastic cylinder back up because the metal endcap wasn't glued properly and fell off.
2. The provided USB to 'funny itsy-bitsy usb' cable FAILED within two days of moderate use. This essentially rendered the passthrough USELESS. I initially thought the unit was damaged and couldn't even be charged but THANKFULLY there was also a usb-mini adapter for the passthrough that I used my own usb-usb mini and continue to use.
3. I really wish I could charge the unit through the top with an ego charger, but it's not really that important I suppose... I freaked out though when the first cable failed and I thought I wouldn't be able to even charge the unit let alone PT. (sort of resolved by the included adapter piece)
4. I'm not sure why they gave me three rings for the soft power button, but I guess they expect it to wear out... I haven't noticed much wear yet. Perhaps a different color could be cool. (This is a minor thing)
I know that perhaps a few of these problems were simply misfortune, but I think it's a fair warning of You get what you pay for. I contacted GotVapes and created a ticket to address the problem, but I was unwilling to part with and ship my brand new powerful battery passthrough back as soon as I got it. It is my main vape and I deal with its little quirks, I guess. I like the higher voltage for higher resistance coils on my RBA. It really seems to deliver solid power, and honestly 5.0V is NOT enough for certain applications *cough* eVIC *cough*
I DO wish I could get a replacement bottom cap though. Perhaps someone has an idea as to what I could use? Also, using the adapter for the usb adds to the length of this thing, and with my Smoktech Redux on there it is nearing ten inches in length when I'm in tethered mode... :/
Some pictures for your judgment.