Sabin

iTrader: (1)

Quick question about this pack

I got this pack about sometime in may of 08, and now it's registering just a hair over 5300mah. Is this normal?

JAM MaxAmps

I guess I don't understand what your asking. Are you saying that it only takes in that amount when you charge it?

-J

Sabin

iTrader: (1)

What I am saying is: it takes a full charge properly and cells are balanced via the blinky balancer. When I do a discharge on the ICE at 6.0amps, it reports 53xx mah as discharged.

i can do a discharge to charge test and report then numbers from that.

JAM MaxAmps

Ok. But why are you doing a discharge? And the capacity will vary depending on where your charger cuts off at. If you discharge at 1 amp it show you a different number as well.

Jason

Sabin

iTrader: (1)

sorry for the delay, I got caught up in other things.

5319mah charge is what I get from the ice.

I do a discharge test to give me a ballpark estimate on how long the battery will last on a given charge, and I also discharge it for a single cycle. I also discharge all my batteries at 1C

your 2000mah mini-t pack I bought about a week ago was pretty impressive. 2100mah discharge at 5C.

JAM MaxAmps

Discharging the pack at 1C won't give you a very accurate run time base. You car will pull far more amps than 1 C and you'll in fact be seeing less run time. How are you storing this pack when not in use?

Jason

Sabin

iTrader: (1)

charged up to 50% of rated capacity with the blinky balancer and stored in the fridge.

JAM MaxAmps

Well that could be part of your problem. Your not supposed to store Li-Po's in the fridge. They are to be stored at room temp at 60% of their rated capacity. Storing packs in really cool temps can hurt the cells the cooler a cell gets the lower the capacity. Your wrecking your packs. And no where on our site do we say to store them in the fridge.

Jason

Sabin

iTrader: (1)

huh. Before I got the first lipo I read that keeping them in the fridge reduces their self-discharge and prolongs their life.

JAM MaxAmps

No it has proven not to be good for them. Hence the reason you don't see storing them in the fridge on our Li-Po care page.


-J

Sabin

iTrader: (1)

okay, so it looks like I was working on old information. good to know for next time.

so, where do we go from here?

drperry

iTrader: (3)

Try waiting until they're at room temperature before you discharge and charge them...

JAM MaxAmps

Yes very old info. I can remember that being brought up almost 2 yrs ago and it was proven back then not to be good.

Jason

Sabin

iTrader: (1)

That's what I do all the time. even when I prep them for storage. balance charge first, full balance discharge second and half capacity balance charge third. Done at room temp.

Sabin

iTrader: (1)

So, do I still qualify for warranty? I did buy the 3 year warranty.

I just need to know where we go from here.