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Electric Stunt => Gettin all AMP'ed up! => Topic started by: CharlesF on April 11, 2009, 06:09:33 AM

Title: Turnigy Accucell-6 Balance question
Post by: CharlesF on April 11, 2009, 06:09:33 AM

I received my Turnigy Accucell-6 charger on Thursday and have been trying it out on various batteries. It seems to work fine . . . but the Balance feature does not appear to work.

I have been testing it on 2 of my 1600 mAh 3s LiPo batteries I bought about 18 months ago. On both of these it gives an error "cell voltage" after about 30 seconds in Balance mode, yet the indicated cell voltages are 4.18, 4.18 and 4.21 which seem pretty close to me

Does anyone else have one of these? Am I doing something wrong?

Charles
UK

Title: Re: Turnigy Accucell-6 Balance question
Post by: John Cralley on April 11, 2009, 08:01:41 AM

Charles,

I'm no expert (far from it) but your batteries appear to be more or less fully charged. Maybe if you discharge one of them somewhat and then try the charger in balance mode, it will then do a proper charge and balance.

John

Title: Re: Turnigy Accucell-6 Balance question
Post by: CharlesF on April 11, 2009, 08:06:16 AM

Thanks

I'll try that

Title: Re: Turnigy Accucell-6 Balance question
Post by: Crist Rigotti on April 11, 2009, 08:46:42 AM

At what rate are you trying to charge them?  You could turn down the charge rate to something like .2A then try it again.

Title: Re: Turnigy Accucell-6 Balance question
Post by: CharlesF on April 11, 2009, 10:23:10 AM

I have tried various rates

What I did in the end was charge each cell up individually via the balance connector. I'll keep thinking about it

Charles

Title: Re: Turnigy Accucell-6 Balance question
Post by: Alan Hahn on April 11, 2009, 12:15:07 PM

Quote from: CharlesF on April 11, 2009, 06:09:33 AM

I received my Turnigy Accucell-6 charger on Thursday and have been trying it out on various batteries. It seems to work fine . . . but the Balance feature does not appear to work.

I have been testing it on 2 of my 1600 mAh 3s LiPo batteries I bought about 18 months ago. On both of these it gives an error "cell voltage" after about 30 seconds in Balance mode, yet the indicated cell voltages are 4.18, 4.18 and 4.21 which seem pretty close to me

Does anyone else have one of these? Am I doing something wrong?

Charles
UK

If they are already charged up, the charger may not want to have them put back on. So the complaint may be that they are already charged.

Title: Re: Turnigy Accucell-6 Balance question
Post by: Dean Pappas on April 11, 2009, 12:59:52 PM

The charger may be cranky about seeing greater than 4.20 on any one cell???
Let us know how that partial discharge/recharge works.
Dean

Title: Re: Turnigy Accucell-6 Balance question
Post by: CharlesF on April 11, 2009, 01:38:12 PM

I'll try that tomorrow