Ok first question?

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Finsup

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Aug 22, 2014
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Winter Haven fl
I have a Protank 2 that I have been running for about 6 months on a Kanger v v evod 1000mah at 3.8v. Last week the tank quit working I changed the coil still did not work. Put the tank on a 650mah passthrough works fine.So theres something wrong with the battery right. Nope I just got a Aspire nautilus Put it on the Kanger works like a dream. So what Im asking can any one think of a reason the Protank and the Kanger would suddenly stop working together. Much thanks
 

State O' Flux

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Jul 17, 2013
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Welcome to ECF, finsup...

What's probably happening is your 510 contact pin on the 1000 mAh battery has been pushed a bit deeper into the negative collar (than the 650 mAh)... deep enough that the PT is not making contact, but not so deep that the Nauti' doesn't make contact.

The pins are technically not adjustable... but, you can pull most atty contacts down with tweezers or pliers, and you can gently pry most 510 battery pins up a little bit with a small jeweler's screwdriver.

If you have a digital or dial caliper, you could easily measure the depth of the contact pins in your batteries, for comparison. Sometimes... only a few thousands of an inch is all it takes to lose contact.

Addendum: I see Susan beat me to the punch. ;-)
 

Equilibrium

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Mar 20, 2014
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Sounds like the center pin of your battery is not making contact with the Kanger Protank atomizer. This usually occurs from over-tightening the tank onto the battery connector.

Center Pin Issue - Fixing a non firing eGo battery

That's what I was thinking too. You either need to pull down on the center pin on the kanger coil OR gently pull up on the center firing pin on your battery.
 

Baditude

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Apr 8, 2012
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Most likely there's an issue with either the center pin in your 1000mah battery or the center pin of the Protank, or both.

Each battery or tank connectors can have different tolerences in making electrical/mechanical contact with each other. A particular tank may work on one battery but not another. Often this is because the center pins are too short to make contact.

Overtightening a tank onto the battery connector can push the center pin deeper into the battery, resulting in no electrical/mechanical contact. Use a flathead precision screwdriver to carefully pry/tease the battery's center pin up higher, about 1 - 2 milimeters.

centerpin.jpgcenterpinfix.jpg

Do the same with the Protank's center pin if necessary. The center pin should be the same length as the outer connector ring. If it is shorter than the connector ring (with the outer threads), it won't be able to make electrical contact with the battery.

510centerpin.jpg tank's center pin is too short

 
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