eGo-C battery not firing on LR atty

[Ryedan]

I posted this question in the batteries forum yesterday, but have not got a response yet. Hope I'm not breaking any rules here, but thought I would try in the eGo forum too, as this might be a better place to get help with a eGo question.

I got some LR atties for my eGo-C last week for the first time. Put one in each of two eGos and vaped away for while on both. Both batteries were charged to the point where the button light was white. One of the batteries then quit firing. I took the battery off and it still would not fire - no light on the button. I tried five clicks twice, but nothing changed. I put it on the charger for a minute and it was back in service, acting fine. Back on the same atty and the same thing happened, battery quit. I then put the other battery on this atty and it did the same thing, quit. Put the batteries back on the 'good' atty after the charger and both worked fine. I then replaced the 'bad' atty and all was fine for a few days and then one of the batteries quit again. I put it on the charger to bring it back and have not had the problem again with that atty.

I thought the first atty might have an intermittant short, but then it happened again, but just once that time. I have an old analogue multimeter which shows battery voltage at about 3.7 when charged. I can not check resistance with this MM. Got a digital meter coming next week so I'll be able to check this stuff in the future.

I've had the eGo's for over a month now and never had a problem with SR atties.

Does anyone know what is going on here?

 

[Katya]

Hi, bigsmke!

First of all, if an atty (LR or otherwise) causes your battery to stop firing, take it off of the battery immediately and check its resistance. If you don't have a multimeter, put that atty away until you get a multimeter! NEVER tranfer a suspicious atty to another battery!!!! If your atty is defective or shorted (~1Ω or less), it will kill every battery you screw it onto!!!

Next step--get a multimeter. Really.

Check the resistance of your atty with your new multimeter. If it reads ~1.5Ω or higher, it's OK to use. If it's lower than that, chuck it. You don't want to overstress your battery's protection circuits by using very low resistance atomizers. EGo batteries have very sensitive MOSFET switches and once they are fried, the battery is dead.

That said, I have used 1.8-2.0Ω atties on my eGos and Rivas without an incident, but I do check my atties' resistance regularly, I do not chainvape and I do not overheat my batteries. I usually have at least two or three in rotation.

BTW, eGo batteries' true working voltage is ~3.4 v or so--they are regulated.

 

[Ryedan]

Thanks for the info Katya! Ya, the multimeter is coming in a few days. Will be interesting to see what the resistance is on these atties. At first I thought it was just one atty that was bad, but after it happened with the second one I didn't know if it was a bad set of atties or something else going on.

As far as the working voltage goes, do you mean they go down to 3.4 with load on them? Or is my old MM just inaccurate?

 

[antfuzz]

Where did you buy these atomizers? What brand are they, Cisco, Ikenvape or a no name brand. Sometimes it's not worth it to buy inexpensive atomizers.

 

[Ryedan]

They are cheaper eGo-C atomizers ant. I don't think Cisco or Ikenvape make eGo-C atties. In any case, I'll probably end up spending a bit more for a better product in future.

 

[Katya]

Thanks for the info Katya! Ya, the multimeter is coming in a few days. Will be interesting to see what the resistance is on these atties. At first I thought it was just one atty that was bad, but after it happened with the second one I didn't know if it was a bad set of atties or something else going on.

As far as the working voltage goes, do you mean they go down to 3.4 with load on them? Or is my old MM just inaccurate?

There is nothing wrong with your MM--except that it's reading your battery nominal, unloaded voltage, as you guessed correctly...

Unregulated Li-Ion batteries come off the charger at 4.2v, and as they become discharged the voltage drops until at ~3.3 to 3.1v the protection circuit cuts in and switches the battery off. They are usually labelled 3.7v because that's the middle of the voltage range.

What kind of eGo battery do you have? The traditional Joyetech eGos are regulated at 3.2-3.4v in order to provide consistent voltage. However, the newer eGos (eGo-C, eGo-T, adjustable voltage eGos) are a bit different. You see, a lot of people complained about that low working voltage of the eGo batteries and the makers of Riva introduced a true 3.7v battery (unregulated). And then Joyetech started introducing all kinds of new eGos, with imroved circuitry and higher voltages. Their latest is the eGo-C Twist--a true variable voltage battery, capable of delivering 4.8v--a poor man's Provari, if you will. I hear good things about it and I like the fact that the 650 mAh version is not much bigger than the 900 mAh eGo (just a bit longer).

Here's a very nice post from my friend Kent C, who knows everything about eGos. Thank you, Kent!

http://www.e-cigarette-forum.com/fo...p-plan-rivas-egos-kgos-oh-my.html#post5922957

As for your eGo-C atties, I'm surprised that they are not working well. I have both SR (2.2Ω and LR (1.8Ω) and they are working fine. I just don't like the LR atties on my 3.7v Rivas--they get too warm for my taste--but they are OK on the eGos. I prefer the SR, though.

Where did you get your eGo-C atties? Are they not made by Joye? Anyway, this is what I'm using:

https://www.cignot.com/product_p/egc-hed-all.htm

Good luck and happy vaping!

 

[Ryedan]

Thanks again Katya for all this information! Kent's post was also great reading. I understand these batteries better now. I actually know quite a bit about Lion batteries. I fly electric model airplanes using lithium ion polymer (LiPo) batteries which are not protected or regulated (just not done for this use), so this aspect is new to me. Cell voltage min and max are the same as for common Lion and IMR batts, but maximum discharge current is very high, as is needed for this application. They do have their own unique safety issues though.

The eGo-C kit I have is from Happy Vaper here in Toronto. I'm pretty sure it is a genuine Joye kit as HV is an official distributor for Joye. These LR atties are not Joye. I bought them from Canvape. I suspect they might just be a bit low in resistance and the battery protection thinks they are shorting. I'll see when I get the new MM.

I am enjoying the LR atties. Nice to be able to increase power if you want to, though I have also found out that not all juices can take this. I've also got a Twist coming next week. Looking forward to be able to dial in power and not have to change atties.