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Old 03-03-2010, 01:56 PM   #1
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Default Battery Help

Not sure if this post is ok in this forum. Let me apologize in advance if it is not. I have a question concerning one of my lipos. I tried to charge it yesterday and my charger began to been and read wrong voltage. I thought my wall outlet was not strong enough because I used a different one than normal. I changed it to the outlet I always use and it still would not charge. I then swapped the lipo out and it charged the different lipo just fine. I assume my lipo is dead. I got it used so I don't know how many cycles it has on it. Is there something I can do to fix it? It does not look any different than the day I got it. Not swollen or smell burned or anything like that. Please let me know if you have any ideas.
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Old 03-03-2010, 02:20 PM   #2
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More info. needed. Manufacture of lipo,2s or3s? MAH? Type of charger and balancer? Use a DVM tell us the voltage on lipo's
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Old 03-03-2010, 02:37 PM   #3
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My thunder power charger will do that if I try to charge a battery that is already fully charged.
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Old 03-03-2010, 06:03 PM   #4
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Reedy 3200 mah hard case 20c lipo. Onyx 230 charger.
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Old 03-03-2010, 09:36 PM   #5
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Reedy 3200 mah hard case 20c lipo. Onyx 230 charger.
DVM reading on the Reedy 3200. should have 6v on it. If lower than 5.5v Charger should give you an error. Maybe say"cell too low". Lipo's are not suppose to be discharge to 0 volts like ninh's. Discharge lipo to 3v per cell Reedy 3200 to 6v. You may try to charge it to 1000mah see if it will take a charge. Rather you have a balancer and cycle the pack a few times. over dischaging can damage lipo's.

If the lipo's read at 8.4v the charger will shut off after a few seconds cuz cell is charged, and won't anymore.
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Old 03-03-2010, 11:19 PM   #6
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Yeah it won't take a charge at all. The charger starts beeping and won't do anything. I guess it's time to get a new battery.
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Old 03-04-2010, 09:35 AM   #7
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Yeah it won't take a charge at all. The charger starts beeping and won't do anything. I guess it's time to get a new battery.
Give me a DVM(digital Volt Meter) or VOM(Volt, Ohm, Millamp) meter. on the Lipo
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Old 03-04-2010, 10:28 AM   #8
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Ill do it tonight when I get off of work.
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Old 03-05-2010, 01:52 PM   #9
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Here I am trying to get my 7.2v 3800mah t-energy packs charged to full, but before this happens, my charger is getting pretty hot. Im charging at 4 amps. switch is on 6 cell. any ideas? im lowering the charge rate as we speak.

Charger is a DYNAMITE vision peak 2 charger.
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Old 03-05-2010, 05:41 PM   #10
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Here I am trying to get my 7.2v 3800mah t-energy packs charged to full, but before this happens, my charger is getting pretty hot. Im charging at 4 amps. switch is on 6 cell. any ideas? im lowering the charge rate as we speak.

Charger is a DYNAMITE vision peak 2 charger.
Discharge the pack, by runnin' your car till it quits, and use battery discharger to a voltage of .5v. Let battery cool. Set your charger to 3.8 amps, and charge pack. Charger will shut off at peak, then it'll start trickle charge at .5v. Battery charger will heat up, if so afraid, put a cooling fan next to it. Take note of heat with bATTERY PACK. Keep an eye on it.

Tenergy pack are so sensative when charging. 4 amps could overcharge the pack. That why I said to set the charger at 3.8 amps, and top off by trickle.

Telling you the truth, Tenergy pack are cheap. They don't last long, in my opinion. Stay with the better brand, like Orion,Reedy,Duratrak, Trinity.
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Old 03-05-2010, 06:21 PM   #11
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its ok to let it out about the packs. but yeah i would never charge without watching or let my precious t-energy packs get hot. its the charger thats heating up first.

there are new BTW. could this be the reason.?
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Old 03-05-2010, 07:35 PM   #12
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its ok to let it out about the packs. but yeah i would never charge without watching or let my precious t-energy packs get hot. its the charger thats heating up first.

there are new BTW. could this be the reason.?
Normal for the charger to heat up, especially ones that dosn't use a biult-in fan.
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Old 03-10-2010, 08:26 PM   #13
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should i get a 3300mah 2-cell 30c or a 3000mah 3-cell 20c?
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Old 03-10-2010, 08:51 PM   #14
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same problem.
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Old 03-11-2010, 08:12 PM   #15
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bump
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