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Weak batteries at 70%?
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xiTzCriZx Offline
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Post: #1
Weak batteries at 70%?
I've been using my Rx 2/3 for a few months without an external charger and just using the USB port, about a week ago I finally got an external charger, my batteries (efest 3000mah 35A 3.7V 18650) have been charging fine, however today I got the "weak batteries" message from my Rx and they're at 70%! I'll see what my charger reads them as when I get home but they definitely should not be weak and for them to just stop working as soon as i use an external charger that I had to pay $25 for really irritates me... Anything I can do to to fix this??? Thanks guys! 
11-01-2017 05:23 PM
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gentlydoingit* Offline
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Post: #2
RE: Weak batteries at 70%?
Voltage of a bad cell can hold pretty well at 4.2 but the capacity can be seriously diminished. The only way to tell from a charger is it it rads the mah when fully charged. There's nothing you can do for a bad cell Undecided
I strongly suspect that the damage happened when your mod heated up tbh.

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11-01-2017 05:58 PM
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Atavar Offline
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Post: #3
RE: Weak batteries at 70%?
(11-01-2017 05:23 PM)xiTzCriZx Wrote:  I've been using my Rx 2/3 for a few months without an external charger and just using the USB port, about a week ago I finally got an external charger, my batteries (efest 3000mah 35A 3.7V 18650) have been charging fine, however today I got the "weak batteries" message from my Rx and they're at 70%! I'll see what my charger reads them as when I get home but they definitely should not be weak and for them to just stop working as soon as i use an external charger that I had to pay $25 for really irritates me... Anything I can do to to fix this??? Thanks guys! 
I suspect the answer here is hidden behind "finally got an external charger".  If you were charging the batteries from the usb port on the mod it is very likely that they are no longer matched and that one battery is weaker than the others.  The usb port is not a good way to charge parallel batteries in a mod. 
The best solution is going to be to buy a fresh set of three batteries and only charge them in the external charger. 
I have one set of three batteries and one set of two batteries for my 2/3.  It is not good to mix the sets as one battery will develop a different charge.
I do use the usb charger on my 2/3 on road trips but I try not to let the charge level get really low and I do not charge to 100%.  
If you use three batteries and want to test for one week battery use the 2 battery back and do short tests with different pairs of the three.  try batteries a and b then try b and c then try a and c.  If there is one battery that is weaker than the others it should be apparent. 
11-01-2017 06:46 PM
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xiTzCriZx Offline
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Post: #4
RE: Weak batteries at 70%?
I don't have the money for new batteries, I have a set that I'm sending back for 4 HE4's but that'll take atleast a week to get them and I can't do no vape for a week with the stress I'm having lol
(This post was last modified: 11-01-2017 07:39 PM by xiTzCriZx.)
11-01-2017 07:38 PM
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xiTzCriZx Offline
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Post: #5
RE: Weak batteries at 70%?
I also cannot just test 2 of the batteries cause I vape at 150w and people say not to do that with 2 cells. When it does the weak battery it doesn't go under 100, but that's not what I like to vape at. 
11-01-2017 08:01 PM
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Don29palms Offline
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Post: #6
RE: Weak batteries at 70%?
(11-01-2017 08:01 PM)xiTzCriZx Wrote:  I also cannot just test 2 of the batteries cause I vape at 150w and people say not to do that with 2 cells. When it does the weak battery it doesn't go under 100, but that's not what I like to vape at. 
What are you vaping at 150 watts?
11-01-2017 08:10 PM
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xiTzCriZx Offline
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Post: #7
RE: Weak batteries at 70%?
Tfv8 Q4 coil, .16 ohm, it's about a 2 month old coil so it doesn't run very well under 150, I get about half the could I normally would at 150, but I barely get any at 100. I say barely as in like a foot of clouds compared to like 3 from 150, and a normal not old coil would get me about 5, with the T8, my preferred coil, I get about 7-8 feet at 150-200w
11-01-2017 08:41 PM
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xiTzCriZx Offline
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Post: #8
RE: Weak batteries at 70%?
It seems that my 3rd battery had lower voltage than the other two, I say third as in the one that's in the removable back. After they charge I'll see if it's still doing it at the high of percentage 
11-01-2017 08:44 PM
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Robjenko Offline
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Post: #9
RE: Weak batteries at 70%?
(11-01-2017 08:41 PM)xiTzCriZx Wrote:  it's about a 2 month old coil so it doesn't run very well under 150,

2 month old coil Wow I'm surprised it lasted that long Tongue

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11-01-2017 10:34 PM
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xiTzCriZx Offline
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Post: #10
RE: Weak batteries at 70%?
(11-01-2017 10:34 PM)Robjenko Wrote:  2 month old coil Wow I'm surprised it lasted that long Tongue
Yeah it doesn't taste the best and smells burnt when doing frenchies or blowing it at people, but its better than ciggys lol
11-01-2017 11:04 PM
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