JerryRigged

iTrader: (2)

Howdy gang -

Anyone know what the Charge C-rating is for SMC batteries - the True Spec line? They don't list it.

Thanks,
Jerry

JerryRigged

iTrader: (2)

True Spec Premium 14.8V 5400mAh 135Amps/90C
and
True Spec Premium 22.2V 7400mAh 149Amps/90C

I do know how to calculate charge current, that 1c would be 5.4a or 7.4a, etc. But what is the max rating? Can I go 2c? 3c? 5c?

Darkgenerals

iTrader: (71)

Last set of SMC I had, which was a couple of years ago. it was 2 or 3C, I used to safely charge some of the 5kmah batteries at 10amps all the time.

On the SMC's website, factory spec can charge upto 6c. So you should be fine 3 or 4c with those higher quality batteries.

JerryRigged

iTrader: (2)

Thanks!

Where did you see this info on the SMC website? I can't find it...

Jerry

joeyb_1369

There's a battery information sheet in the box with a new battery. One side describes the warranty, and the other provides safe handling and charging instructions for the battery. For my True Spec Premium shorty, the instructions say it can be charged at 2C. I can't find that same information on the site anywhere. The sheet looks generic so, I'd assume it applies to all the true spec batteries.

JerryRigged

iTrader: (2)

Cool, Thanks!

I don't know if I saved the box, I'll need to go dig. Most of the time I do save the boxes, though....

big ted

iTrader: (2)

Weird. Danny at SMC was super helpful and responsive when I emailed him a month ago.

joeyb_1369

Yeah, I just emailed yesterday and got a response within 20 minutes. Question was about shipping.

EbbTide

iTrader: (39)

It's possible the email got filtered into spam or he missed it. Don't let that deter you, SMC is generally very good about responding. He definitely didn't do it on purpose.

Darkgenerals

iTrader: (71)

I looked at the pictures of the factory spec and squinted a little bit. some reason he no longer list out the charge c on his website, I think he used to.

JerryRigged

iTrader: (2)

I did get an Email back from him. Guess I was listening to the wrong people about his email response time.

Thanks Danny!

GrandeGixxer

iTrader: (21)

I usually cycle mine pretty conservatively. After every run I discharge at 25a and then charge at 20a. 2s 7200 packs on icharger 406.

platgof

iTrader: (4)

20 amps seems high for a 2s battery. I always went 1.5 c on mine so they would last.