I'm hoping that the 500ma battery will give the PC a little boost. I can't use the PC very long without it going soft on me. I am a little dissappointed in the operation so far. I had assumed that I could vape all I wanted at full tilt. But, mine only lasts about the 30 to 45 minutes then performance drops.
As soon as I get a battery to experiment with I may build my on USB passthrough.
Kevin
You might want to trouble shoot a little bit, because I don't think something is working right for you. I took my pass through completely off line last night and vaped it dry and got a little over twice the amount of time off it that I do on a regular 510 battery. There was a drop off of vapor after a while but that was with no power going to it at all. I haven't noticed any drop while plugged in with a fully charged batt. Of course the nature of this usb doesn't give you the extra 'super charge' that a real pass through does, but then again you don't need to use it on the 1000ma output adaptors either. I think thats the real purpose of the battery. It regulates the V and allows you to use it on lower output adaptors.