Low Lipo Cell Help - RCCanada - Canada Radio Controlled Hobby Forum
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Old 08-13-2011, 02:10 PM   #1
cassat
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Low Lipo Cell Help

Hi,

Can someone direct me to the correct procedure for topping up a low lipo cell??

Know we discussed this a month ago , forgot to bookmark it


Thanks
Cassat
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Old 08-13-2011, 03:03 PM   #2
voyager_663rd
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Re: Low Lipo Cell Help

I'm assuming you mean one you ran too low.

start off with a trickle level of charge and let it run for about 30-45 minutes or so then bump it up to 1/10C.

The key is to initially set it up at a trickle level of charge (less than 1/10C) to "get the juices" going so to speak. I did mine with my blinky attached (but then, I always charge with Blinky attached).

Your mileage may vary but it worked for me.
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Old 08-13-2011, 05:47 PM   #3
cassat
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Re: Low Lipo Cell Help

Thanks Len, yeah the cells did not discharge evenly. I will trickle the cell as you suggest.
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Old 08-16-2011, 09:19 AM   #4
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Re: Low Lipo Cell Help

Also, if you have just a single low cell in a pack, charge the one cell through the balance leads using alligator clips and 2 paper clips inserted into the balance lead for the cell that needs to be revived. Just MAKE SURE you take measures to prevent the 2 paper clips from shorting, which would be disastrous. Also double check the polarity when hooking up the charge leads.

I had to do this with a friends BRAND NEW battery that had one cell way off balance from the others in a 4 cell pack. Balance charging would have taken overnight, but we used this method at the field and it worked great. Thereafter, the back was balance-charged after the flight and with each successive flight, the pack balance got closer and closer together when it was re-charged after each flight.
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Old 08-16-2011, 12:08 PM   #5
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Re: Low Lipo Cell Help

Why take chances? Just do it the overnight way and have some patience.
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Old 08-17-2011, 07:27 AM   #6
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Re: Low Lipo Cell Help

I get the cell imbalance on my Thunder power five cells. I hit the charge button once or twice more until it levels out.
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