oXYnary

iTrader: (4)

Some third party... Maybe a Mag who wouldn't mind losing business from the losers, should just post results of IR of each of the main packs. Don't bother with the C rating these days. What is needed is the knowledge of the IR. There are a few chargers on the market that can do this.

(Internal Resistance)

Danny/SMC

iTrader: (2)

Battery performance is determined by the Internal Resistance of the cells.

We sell an affordable meter that tests the cells IR.

http://www.youtube.com/watch?v=s_ho_...&feature=share

When we test cells we test the IR which is an indication of the cells performance and C rate. We also do cycle life testing as this is very important as some cells may have good performance but the mAh drops off fairly fast over a short amount of cycles. This will drop the voltage curve so the pack will not have it's initial performance very long.

You can visit our Facebook page as we've posted allot of good info on the testing we're doing.

www.facebook.com/smcracing

bertrandsv87

iTrader: (2)

I think it's hard to dismiss the racers choice as the best way to know which brand is best over time. I am also talking about real pros here, not amateurs... Thunderpower seems to be it !

Nilks

I've had 3 different LRP packs. Two of them died after about 30 runs, and the last one quite quickly lost its punch.

But Thunder Power on the other hand! They keep the punch for longer, and seem to be more consistent / hold the voltage better.

doubleA

I've seen new lrp,orion puffing issues....also been told that recent titc the new thunder power were puffing also.I have an old proamp lipo which I have been using around 8 months at 10amp charge all the time.....has not puff yet