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

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

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.

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

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!

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;)

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

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)

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

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 :thumbsup:

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

you will probably get some new ones sent back

Fingers crossed :thumbsup:

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?

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.

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