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Old 27-10-2009
tiny tom tiny tom is offline
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Default Trackpowers

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?
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Old 27-10-2009
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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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Old 27-10-2009
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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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Old 27-10-2009
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how long are they being charged for?
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Old 27-10-2009
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35-45 mins
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Old 27-10-2009
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what motor? speedo?? 3mins does sound a little to quick to be at cut out voltage
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Old 27-10-2009
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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
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Old 27-10-2009
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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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Old 28-10-2009
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Quote:
Originally Posted by tiny tom View Post
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
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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Old 27-10-2009
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Quote:
Originally Posted by tiny tom View Post
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?
how old are they? how long have you had them? were they new?
and its Trakpower with no C
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Old 27-10-2009
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how old are they? how long have you had them? were they new?
and its Trakpower with no C
you mean 1c mark lmao
sorry ill get my coat
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Old 27-10-2009
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Originally Posted by bigred5765 View Post
you mean 1c mark lmao
sorry ill get my coat
hmm kind of reads not right with his problem lol
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Old 27-10-2009
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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.
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Old 28-10-2009
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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.

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Old 28-10-2009
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Quote:
Originally Posted by Marvin View Post
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.
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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Old 28-10-2009
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Quote:
Originally Posted by mark christopher View Post
how old are they? how long have you had them? were they new?
and its Trakpower with no C

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
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Old 28-10-2009
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Quote:
Originally Posted by tiny tom View Post
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
Can`t you send them back too Trakpower? they might warranty them for you!

And the charging at 2C (2cell as you put it) has been explained in the replies and is fine.

Andy
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Old 28-10-2009
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Quote:
Originally Posted by tiny tom View Post
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
Quote:
Originally Posted by T4miy4 Guy View Post
Can`t you send them back too Trakpower? they might warranty them for you!

And the charging at 2C (2cell as you put it) has been explained in the replies and is fine.

Andy
i think you both may be getting confused, 2 cell is NOT 2c

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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Old 28-10-2009
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Quote:
Originally Posted by mark christopher View Post
i think you both may be getting confused, 2 cell is NOT 2c

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
I`m not confused but thought when he said 2cell he meant 2C

Quote:
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?
Hes obviously charging them above 1C and trakpower state 2C is acceptable but as you have stated could possibly cut the life span

Good luck

Andy
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