Quark 125 - cutoff settings....

[silentbob343]

I set the LVC to 3.0, but I also try to follow the airplane guys over at RCgroups and never discharge more than 80% of the capacity.

I'm cheap and want every last cycle from my lipos ;).

[zeropointbug]

You're not cheap... you're just caring for your stuff.

And if you REALLY want your batts to last long, you discharge them as little as possible, and top them back up again. They would last exponentially longer, simply using half of your capacity would grant you much longer lasting batts than if you used them up.

I never wait for the lvc to kick in. I set my watch when I start to run on the track. For the 8Ah pack, I go for 30 minutes and on the 4800 packs, I go for 20 minutes. This usually results in less than 90% discharge. I also change my battery when I take a break and top it off.

[BrianG]

I too like to take care of my batteries, but by the time they no longer have the capacity they had when new, there will most likely have better cells out. Call it forced upgrade. :) If you get the "good cells", I can see wanting to take better care of them. In my book, as long as they are discharged under their max rating (I usually shoot for a constant C rating about 25% higher than I plan to run), don't get over 120*F, and don't puff, I'm happy.

Wow, guess I'm hard on my packs. I use a 2.7v cuttoff, run my packs up to around 170*f, repeak them after balancing, and ding them or bow them a bit from makeshift straps. (Flew them into the ground at 80mph)

I have never lost a cell. I have every cell I ever bought and they all work. They just get replaced with better cells. At the rate of improvement, most of my retired cells probably have half of thier cycles left. This is Airplane, Helicopter, and 1/10 scale-1/8 scale off road.

I am very carefull to charge, and store my packs, and I keep tabs on packs and their performance. I keep tabs on balancing. I read stories to them about fast cars, and tuck them in at night. But once they are plugged in, I work them hard, till they dump. (my 1/10 scale doesnt even have a v. cut-off)

Havn't heard about the 3.2v cutoff for higher draw packs yet, I'm having good luck at 2.7v so far. (and Im not going for longevity at this point)