Battery drain uneven in Parallel Box mod??

[elusiv1]

Hi everyone, it seems that my Cloud chaser batteries are draining uneven, I have a 252 parallel unreg box with 20g KanthaL 5 wraps per coil dual build, resistance is at .1 exactly??? Am I wicking wrong?? I should have stuck with my Sony vtc4s, these cloud chasers are overrated I highly doubt they are 40a per battery, I am probably getting about 20a per battery in my opionion...I can't expect much battery life with 20g but in parallel should be a bit better then what I am getting with these
cloud chasers

 

[Bunnykiller]

20 ga at .1? Im amazed that the batteries still work... so hows the vape with a build like that? smooth, tasty?
wicking has nothing to do with battery drain being uneven... I would check the connect points on the batteries holder... one may be a bit off

 

[Art Mustel]

i don't believe those batteries are 40a. They must be rewrapped ones.
If the "rewrapper" were at least decent they should have used a good 20A battery. If they weren't, only God knows what do you have in your mod.
oh, and btw...and sorry by saying this: building coils at .1 ohm may be dangerous, and more if you believe in those batteries "specs"...

 

[elusiv1]

.10 sorry about that, and I actually get a warm not extremely hot vape with the mutation x v3..Thanks Bunnykiller I will check the connection points, it seems like there is some wiggle in one of the batteries

 

[Bunnykiller]

parallel coils use twice the amps as compared to a single coil of the same size... therefore half the life of the battery time expected

 

[elusiv1]

.10 and yes I bought them at Vaperite here in Atlanta and they have never sold me any rewraps. The build at .10 in a parallel box not build is enough for that load...Trust me I would never build anything below .08, this is a dual coild build and a box running i parallel, sorry for the misunderstanding guys

 

[edyle]

Hi everyone, it seems that my Cloud chaser batteries are draining uneven, I have a 252 parallel unreg box with 20g KanthaL 5 wraps per coil dual build, resistance is at .1 exactly??? Am I wicking wrong?? I should have stuck with my Sony vtc4s, these cloud chasers are overrated I highly doubt they are 40a per battery, I am probably getting about 20a per battery in my opionion...I can't expect much battery life with 20g but in parallel should be a bit better then what I am getting with these
cloud chasers

1:

resistance is at .1 exactly???

Obviously if you have to use question marks, resistance cannot be 0.1 exactly.

2:

Am I wicking wrong??

wicking is not going to affect "battery drain uneven"

3: you mention "cloud chasers" 3 times. Is that the name of the batteries?

4:

I am probably getting about 20a per battery in my opionion

V=IR

I = V/R = 4/0.1 = 40 amps.
If those batteries are putting out 20 amps each then you're getting the 40 amps required by the 0.1 ohm coil.

5: If you want to check the performance of your battery do a voltage drop measurement using a dmm (multimeter).

6: Nothing you said ties in with batteries draining uneven.

 

[elusiv1]

I appreciate the help, yes Cloud Chasers is the name of the batteries..As for the question marks I was editing and they didn't belong there!!lol....I will test the batteries with a Dmm Multimeter.

 

[Dzaw]

nevermind....

 

[crxess]

parallel coils use twice the amps as compared to a single coil of the same size... therefore half the life of the battery time expected

Yea...............No.

2x Amperage - Yes - Divided by By # of Batteries (2) = Same Draw per Battery
Battery life should remain the same while increasing load capability.
The whole concept of Power Banks is to provide higher output - Safely

Op either has a Defective connection or a faulty battery.

 

[Asbestos4004]

.1 and .10 are the same thing.

Vaperite wouldn't have anything to do with the rewrapping of batteries. They just sell stuff. Rewrapped batteries are batteries bought in bulk and rewrapped with the new branding by the supplier. For example, I could buy 1000 Trustfire batteries and have wrappers printed. They would say "Asbestos's Vent Proof 75 amp Cloud Chasing Competition Battery". I'd then convince Vaperite that they're awesome. Next thing you know, you're starting a thread about a burnt finger. I'm fairly certain there's not a battery manufacturer called "Cloud Chaser Batteries"....they're not making the cells. They're rebranding someone else's cells. The problem is Who's cells?

The rest is just a little scary.

 

[Bunnykiller]

from what Ive experienced a .2 parallel setup drains the batteries faster than a .4 single

 

[Dampmaskin]

Personally I wouldn't run a 0.1 Ohm load on anything less than three parallel 20A batteries.

 

[crxess]

Personally I wouldn't run a 0.1 Ohm load on anything less than three parallel 20A batteries.

Wise words!

One simple way to reduce the possibility of catastrophic failure.



4.2v - .2ohm = 88.2w
4.2v - .1ohm = 176.4w 8-o

 

[CoilinTrouble]

Lol@cloud chaser batteries... If its not a Sony VTC5 or VTC4its not rates for 30A continuous draw, and I severely doubt someone would be dumb enough to rewrap a genuine Sony VTC5 as some other brand no ones ever heard of, which means those batteries are absolutely not as safe as the wrapper indicates...Read up on the battery safety and battery suggestion threads here in.the forums and youll get it...but stay far away from untrusted batteries (and in general far away from one quite as low as 0.10Ω I'm at 0.19Ω and thats honestly lower than I the 0.2Ω exact I wanted on my Sigelei 150...

 

[nyiddle]

40A 18650 batteries do not exist. Period.

 

[elusiv1]

Wow guys thanks for the info, I've been reading up about batteries on one of the threads heare and I am staying away from those...I am using my Sony VTC4 batteries or Samsung IMR 25a which is what I normally buy, I reached outside the box and that is what I get but hey, at least I'm alive to talk about it!!lol

 

[CoilinTrouble]

40A 18650 batteries do not exist. Period.

If they did they would sell out faster than any VTC5 ever would...but yeah just doesnt exist

 

[WattWick]

Guessing your batteries drain unevenly because they most likely have different internal resistance. That is why you ideally should 'marry' an identical pair of batteries. New batteries that have not been used before. Even then you have no way of knowing for sure if they are a decent match. If you check voltage before and after use, and they come out preeeeeetty close (second decimal) - you get a feel for how well they pair up. You may want to check this regularly as they may age differently.

When they don't pair up properly, like yours seem not to - you lose the ability to calculate current draw. One of the batteries will (to some extent) both power your coils and (to some extent) uncontrollably charge the other battery. So you're left with one battery improperly discharging, and one battery charging without any safety measure to keep it from charging too rapidly. Twice the bang for your buck

(No offense with the last sentence. I just found the wording a bit amusing.)

 

[nyiddle]

Also, since I feel it's related to the thread, I'll mention that NONE of my 3 (batteries in series) box mods drain batteries evenly. I've used a DMM and the volts are always VERY close (like the difference between 4.00 and 4.08) but it still concerns me a bit.

Was thinking this might be because the batteries weren't originally made as a "pair", maybe one was made slightly later than the other? I've always kept them married since the day I got them, and they're decent enough batteries (I've got a pair of Efests and a pair of Samsungs), they've just never matched voltage when I put them in to charge. Kind of odd.