socalsmoker

The voltage on my Riva Ego battery read 3.92V and my 510 pass through without battery read 4.69V. No wonder my passthough vapes better and hits harder. Even more suprising my stock dse510 battery fully charged reads 3.9V

Hachiroku

They vary. A fully charged battery should start out at 4.2V (the specified charging voltage) and decrease rapidly to ~3.8V and sit there for a while before going lower, and the protection circuit should cut it off under 3V. YMMV. The mAH rating of the battery plays a big part in this. I have an 18650 mod that holds up at ~4V for a whole day, then sits at 3.7V for two more days.

A note on the pass thru: does it have a battery? If so, plug it into your computer and vape away. If not, you're drawing ~1.2A from a circuit designed to deliver ~750mA, so you're drawing double the power. Your computer may put up with this for a long while. I stopped using a straight passthru on my computer when I noticed the monitor screen skewing to the right every time I hit the passthru! (of course, being a Professional Geek, my computer is something like your mechanic's car...no covers and a 350W power supply doing the work of a 500W...). DO NOT use it on a laptop!

I use my straight thru in the car with a USB cig lighter adapter. It runs about 5V and vapes like crazy. I'm waiting for the cheap a$$ made-in-China circuit in the charger to crap out and deliver a straight 12V to the atty. VAPOR CITY!!!

socalsmoker

I've been using the front usb port on my desktop and my iphone usb charger. I think I'll just run an extension cord for my apple usb charger near my desktop.

Hachiroku

You need an output of at least 750mA, but ~2A would be a lot better if using a straight-thru...

socalsmoker

I'm using the usb charger for my iphone it's rated at 5v 1A. I'll try to find one rated at 2A.

Hachiroku

1A should be OK. Unless the charger was expensive. If it was, try something else. If it's an aftermarket thing you got at Family Dollar for $9, vape away!!!

breaktru

The 4.96v from the passthrough is without the load of the battery. Once connected to the battery the voltage will be more like what your battery is rated at.

socalsmoker

My pass through has no battery.

breaktru

I've been looking around for one a couple of weeks ago and haven't seen one without the batt.
Where did you get it from?

Steampunk

Some incorporate current limiting in the switch. EG, my eGo is held to 3.4V, and maintains it for quite a while.

If not, then you're running at whatever the voltage of the USB is, nominally 4.7V

socalsmoker

I got it from mobilevapor.com my first vendor.