So I recently purchased a SS Vtube mini, and yesterday I was on the Lavatube noob thread discussing some things when someone posted a link to this "Super Ego variable voltage" battery. I went to take a peek and the vendor happened to be less a 10 miles from me so I was curious enough to place an order and go pick it up today. There isn't a great deal of info on the specs for this thing, but it's made by Trueman, which is the company who makes Riva I think. The battery is 650 mah and adjusts from 3.0v - 6.0v in 0.1 increments. Has a blue led display that shows voltage, number of puffs, and battery life by of # bars. Basically operates just like the LT. I have nothing to measure the output so I can't verify what it's really operating at, but I can say after just a few hours of use it damn near stacks up to my Vtube and outperforms the twist IMO. I just bought a new red 650 twist and this battery is probably a full inch longer to accommodate the LED display. It doesn't use a regular ego charger, rather a tiny usb that plugs into the bottom of the device but you have to remove the end cap.
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This was not a review as I'm not qualified to give one, but I'm liking this thing so far. I'm sure the next 2 versions we will see some improvements but this is where the industry is headed and expensive mods will have some serious competition from overseas soon.
Here's the battery
Super Variable Voltage eGo
The best part is the price of $31.95, and with a 20% off coupon it was like $26. Like I said, move over twist.