My A123 cells are dying... help?

[wulfgang]

Originally Posted by sikeston34m

I have to disaggree with some things here. Ummm..........it really depends on your setup entirely.

Hey, sikeston, I know you are the outrunner guru here, but I guess I missed some of your old threads. I just went back and read some of your threads and it seems like you had the same problem at first before changing the gearing to get the low speed to work better. I am not sure if I can change diff gearing like you did, but yeah, that would be a great way to get the torque I want.

Also, with respect to wheelies, they are of course a LOT easier in a truck. I have yet to see an outrunner setup in a buggy that can wheelie, but I have seen it done with inrunners.

So are you running 8S? I'm thinking of dropping to 4S, but I need a higher kv outrunner to do that. Right now, I'm pretty limited to the Turnigy stuff because the 8 mm motor shaft fits perfectly in a Hot Bodies drive cup. But I would like to use a higher kv motor with 4S, say 800 or so.

With the soldering, I was estimating an upper limit. I am probably in the 2 sec range, but probably not down to 1 sec because I wanted to make sure the flux is burned out. I have the Weller 80 W pencil iron with the big chisel head. Looks like 1/4-3/8" wide. Definitely the correct iron.

So have any of you guys ever ruined an A123 by soldering or is this just speculation?