[Finnster]

I didn't post up any tech concerns in the other thread, but in addition to what Chris said, there are a number of concerns that don't seem to be adequetely addressed in the current design.

Namely:

-Amp capability of the connectors. Given the "60C" rating, that would put over 300A through all those banana plugs, which look like 4mm plugs. Lots of places for losses, esp overtime as the connections are continually reconfigured. Lots of potential for failures.

-Overly complicated and potential for shorting batteries seem high

-Fragile construction. The connection plugs would be taking a lot of the impact forces that would normally be absorbed by doublesided tape/glue/heatshrink in a conventional pack. This is not where I want forces to be absorbed

-No specs or recommendations on balancing differentials. How far out of balance can these cells be before you plug them together?

-Large surge current potential between two out of balance cells. Normal balancers discharge slowly to achieve balance. Paralleling two cells with ea other will force a charge into the depleted pack. Completely different method. Given the (hopefully) low internal resistance of the setup, large current spikes are quite possible. How does this effect long term performance?

-Safety concerns if the recieving pack does not take the charge well. No internal mechanism to stop a runaway failure if it should occur upon connection

-Large amts of additional weight vs conventional design

-I think some price comparisons are valid, but I won't go into them. Ultimately this design has to answer is if, given the above design penalities and safety concerns, does this represent a significant value above purchasing dedicated conventional packs?

I don't see how.
Perhaps this design has some merit in some small scale/ slow speed applications, but for its intended purpose and application (high speed 1/10-1/8 cars) it seems far too much trouble for any convience benefits.