LiPo Charging?!

Old 11-30-2012, 07:58 PM
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Default LiPo Charging?!

I have a Xcelorin 3800 mAh 60c shorty pack, I've never had problems with this one, or my 4 others. But it was charging today, for two hours. I watched it the entire time for safety reasons, and it just kept going! It worked fine the last time it was used, (last week) and idk what the problem could be. It would be awesome to get it figured out before racing tomorrow.

Thanks everyone!
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Old 11-30-2012, 08:18 PM
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Was your charger on all the right settings? Lipo, 2s, 3800mah.
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Old 11-30-2012, 08:19 PM
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Originally Posted by R.Shackleford View Post
Was your charger on all the right settings? Lipo, 2s, 3800mah.
Yep, it charged all the others with no problem.
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Old 11-30-2012, 08:35 PM
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What charger and power supply do you use? If you use a charger with an internal PSU, sometimes when they get close to a full charge, and close to their temperature maximum, they bounce the charge rate up and down to try and cool off. Other chargers will drop the charge rate significantly if your pack cells are more than .2 volts apart until they balance out.
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Old 11-30-2012, 08:44 PM
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Originally Posted by HobbytownGBW View Post
What charger and power supply do you use? If you use a charger with an internal PSU, sometimes when they get close to a full charge, and close to their temperature maximum, they bounce the charge rate up and down to try and cool off. Other chargers will drop the charge rate significantly if your pack cells are more than .2 volts apart until they balance out.
Protek 610 duo and Protek Super Pro 20. Should I try it later?
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Old 11-30-2012, 09:00 PM
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Originally Posted by LosiRacer163 View Post
Protek 610 duo and Protek Super Pro 20. Should I try it later?
What were the individual cell voltages. I have the same charger / power supply setup and I have had trouble with it not completely balancing packs. Even if they are very close (one cell at 4.20 and one at 4.19) it just keeps going and going and going. I have just started watching it and if the pack shows 8.4v and the cells are within .02v of each other I just stop the charge and run the pack. It has never caused any issues.
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Old 11-30-2012, 09:10 PM
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weird, they were both at 4.2.
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Old 11-30-2012, 09:38 PM
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I have the same problem when trying to charge my revtech packs , it will take all day to charge 1 pack but only a hour to charge my black cased fantoms .
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Old 11-30-2012, 10:15 PM
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Originally Posted by LosiRacer163 View Post
weird, they were both at 4.2.
If they were both at 4.2 that is strange.
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Old 11-30-2012, 11:23 PM
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Look at the individual cells. If they are both at ~4.2V, run it. It will be fine.
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Old 11-30-2012, 11:40 PM
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i balance charged mine the other day and it took 7.5 hours before it finished. i had the charger set to a trickle but it finally finished. run it and try again, just watch it if indoors
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Old 12-01-2012, 08:18 PM
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The balance charger on this charger actually works. Its a small current exchange so it can take some time if the pack is out of balance a bit.
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Old 12-01-2012, 08:27 PM
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Originally Posted by turners dad View Post
i balance charged mine the other day and it took 7.5 hours before it finished. i had the charger set to a trickle but it finally finished. run it and try again, just watch it if indoors
I thought you're not supposed to trickle charge lipos?

■** Never trickle charge a Li-Po battery. Over-voltage from trickle charging will destroy your Li-Po and can explode the pack. Medium charge rates are calculated at .5 maximum C. Debate continues over the benefits of charging Li-Pos at medium rates but there is no data to support that it causes any harm provided you always use a charger made for Li-Po batteries with the correct charge termination methods. See the Batteries and Chargers sections for more information about battery charging.]

taken from,
http://2bfly.com/tools/

http://2bfly.com/knowledgebase/batte...ckle-charging/

Last edited by mtpocketsracing; 12-01-2012 at 09:07 PM.
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Old 12-02-2012, 05:58 AM
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[QUOTE=mtpocketsracing;11504529]I thought you're not supposed to trickle charge lipos?

I guess I mis-spoke by saying "trickle charged", I did it at 1 amp rather than the 3.8 I use normally.
It's a xceliron 3,800mha 60c shorty pack

Is 1 amp too low of a charge, now I'm nervous....lol. I have a good charger can't think of the name off the top of my head, it can do 4 batteries at a time.


I have been accused of "speaking out of my butt because my mouth knows better"...lol

Sorry to the OP for the unintended hijacking
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