08hondacivicsi

I got a new Ecopower 5000mah 30C today and its taking for every to balance. It charge and one cell shows 4.20 and the other is 4.09 its taking for ever its been over a hr since I started the charge. So is that normal for it to be off so much and that's why it is taken forever

RustyUs

How long is forever?Just kidding.
It'll take about an hour to charg that 5000mah pack @ 5 amps. Did you have the charger set to balance or just fast charge? Having that much of a differance between the cells makes me think you possibly had used the fast charge mode. Balancing the pack should get the cells within .01v of one another.

flyinwalenda

My Feedback: (5)

What did the cells read after you opened it,before you charged it? To have one cell out that much is not good and could/usually means a problem with the pack.
What kind of charger are you using?
What are the settings you used?

08hondacivicsi

I'm using a x-charger from dirtcheaprc. I put it on lips balance from the start and I can't remember what the volts read when I first start. It was on the charger for 80 mind then I had to leave. So now it's been on for 25 mins and it's going back and forth from 4.09 to 4.10

08hondacivicsi

I have a volt meter that I'm going to put on for 3.3 and then rebalanced it and see what it goes too.

08hondacivicsi

Maj_Overdrive

My Feedback: (11)

If your charger has a discharge/storage mode use that function. If not simply run the pack for 10min or so and rebalance charge it. Some chargers can have trouble getting some packs back in line when the cells are far apart from each other.

08hondacivicsi

Thanks that's what I was was going to do tomorrow I was going to run it down to around 3.3 volts and then retry it. I hope it helps. Thanks.

phmaximus

Sounds like the battery was a bit out of whack from the factory.... Not exactly uncommon...

ballance charging times is really really dependant of how fast u charger can discharge.... If ur charger can only discharge at 1-2a it's going to take a very long time to get that full cell down a bit...

from personal experance ive ive found there is no point trying to ballance a pack if on of the cells is fully charged... It just takes forever...
My advice is to run in in a car until u have some room to work with... Say about 3.8v per cell, then retry ballancing

flyinwalenda

My Feedback: (5)

It's not common for cells to be off that much. Packs when new should have cells near storage voltage and the cells should all be close perhaps off by 0.02 or so , not 0.1X volts. Cheap packs or packs with issues are off that much and they don't heal themselves.
Also a lot of the cheap 4-button chargers have terrible balance circuits. It can take hours to get a pack balanced when one cell is out that much.
I would send the LiPo back for a replacement.

08hondacivicsi

I contact amain so I gotta send it back.

08hondacivicsi

Ok so I went and bought a better charger. I ran the battery down to around 3.78 so I charge it with the new charger and now one is 4.20 and the other cell is 4.16 now. A lot better then before. So I guess maybe the next time it should balance out I hope.

flyinwalenda

My Feedback: (5)

Run/keep it if you want ,but there is still something wrong with the pack.

08hondacivicsi

Ok so I bought two new venom lipos one both cell balance good both 4.20 the other battery not so much one cell 3.97 other 4.20 the other one wouldn't move from 3.97. Grrr so I contact atomik hopefully I can get it replace. I just don't feel comfortable running it off that much... anyone else having bad luck with lipos