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#1
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Can anyone tell me why my 3600mah 30c stick battery are not holding there charge because my aren't?
They are charged at 4.5 to 5 amp and always balanced when chargering, I have had 3 balance go down on me but flighttech have always changed them. Can anyone help? |
#2
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need more info, what do you mean not holding there charge, how long can you run with them what are you running motor speedo etc and 4.5 / 5 amps is slightly high charge rate is 1c 3600x1c=3.6 amps
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Mattys the driver,my names carl
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#3
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Well I charge them on 2 cell on the trackpower charger, and running them in a cat 3 mins you could see the power drop off and car not going as fast. And sometimes they stop because they hit the lipo cut off at 6 volts
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#4
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how long are they being charged for?
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#5
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35-45 mins
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#6
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what motor? speedo?? 3mins does sound a little to quick to be at cut out voltage
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Mattys the driver,my names carl
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#7
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Brushlless 6.5 and 5.5 and the volt cut off is 6v
Last edited by tiny tom; 27-10-2009 at 06:21 PM. Reason: more information |
#8
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does sound like a duff lipo, but can you get hold of another lipo to test of someone else,just to make sure,
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Mattys the driver,my names carl
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#9
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2 cell is right but you should for long life charge no more than 1 c which would be 1c so that would be 3.5 amps on your charger so you would set 2c (your charger then knows its 2 cells) and 3.5 (which would be amps)
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD |
#10
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and its Trakpower with no C ![]()
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD |
#11
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![]() ![]() sorry ill get my coat
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Mattys the driver,my names carl
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#12
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hmm kind of reads not right with his problem
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD |
#13
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The original Trakpowers were actually rated for 2C charging, just they didn't really advertise it.
4.5-5A is around 1.4C, so is fine. |
#14
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Tell you what i noticed with the tp's
They orignally advertised as the batts are good for 1000's of charges. they dont quote that anymore lol. Col.
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TRF 501x - Tamiyafied Madrat - Bograt Rc10 FT T4 RC18T Lunchbox Gold X-6 squared Lrp, Novak, Robitronic, Ko Propo, Ezrun , Trakpower ,Team Scream, Demon, Microtech, Dms, Good old Jezza, Je-Spares, Bolton Model Mart, My Feedback http://www.oople.com/forums/showthread.php?t=25199 |
#15
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its true they are rated at 2c but doing so will reduce life span, so in this case, maybe its not ok, alo the brca guide line is 1c max.
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD |
#16
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Well I have had them from new, and phoned and talked to flight tech and they told me how to charge them and I read the manual. And the batterys are 30c discharge. And they were charged on 2 cell because they told me to |
#17
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And the charging at 2C (2cell as you put it) has been explained in the replies and is fine. Andy ![]()
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#18
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tom how long have you had them and how many charges do you think they may have had? when i have all the facts ill contact trakpower on your behalf as i work with them very closley
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MBModels - Schumacher Racing - Vapextech.co.uk - MRT - Savox - SMD |
#19
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Good luck Andy ![]()
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