Trackpowers

[mark christopher]

Originally Posted by Marvin

Sorry, from Mark Christopher's post I gathered that it's a rule. I stand corrected!

no prob, my post does say guide line though, not rule.
Trakpowers darks have a 5c charge rate.

[c0sie]

Although im struggling to find a charger than charges at 25A lol

[Big G]

mine only does 8A. the overloader not reallly living up to it's name lol

Even though mine say 2C in the book I'd rather stick to 1C to keep them at their best.

[Marvin]

My charger will do 20A, and up to 8S.

Still not 25A, but close...

With my new 1/8 set-up for next season, I'll have some nice Thunderpower 45C G4 cells, which are capable of 6C charges. They are only 1.75Ah, so 6C will be easy!

[tiny tom]

Originally Posted by mark christopher

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

[T4miy4 Guy]

Originally Posted by tiny tom

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

[mark christopher]

Originally Posted by tiny tom

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

Originally Posted by T4miy4 Guy

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

[mark christopher]

Originally Posted by tiny tom

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)

[T4miy4 Guy]

Originally Posted by mark christopher

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

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

[tiny tom]

Well the batterys are only 10-11 months old, and I have spoke to flighttech and I will be sending back to get tested to see what has happend to them. They are only used 2 times a month

[T4miy4 Guy]

you will probably get some new ones sent back

Fingers crossed

[mark christopher]

Originally Posted by tiny tom

Well the batterys are only 10-11 months old, and I have spoke to flighttech and I will be sending back to get tested to see what has happend to them. They are only used 2 times a month

ok if you have spoke to them, how many packs have done this? when your not using them, how do you store them? (meaning with how much in them?)
when you say twice a month, it that 2 runs or two race meetings?

[Marvin]

You'd set the charger to 7.4V, or 2S (2 cells, in series) Lipo, at 3.6A for 1C (take capacity, divide by 1000, and you have 1C). 7.2A for 2C. 5A is 1.38C, so is well within limits and should barely reduce life cycle.

[mark christopher]

but it is fact that charging them over 1c reduces life span,
2c is given that there safe to take a charge rate of that, at detriment to life span.

I dare say 11 months and charged at 1.4c you have had your monies worth