I think people underate lipo's ALOT.

Gary- you could easily get lipos to power an etek powered heavyweight pusher. If it can be done with a123 it can DEFINATLEY be done with lipo.

Why put a limit on pack size? theres never been a limit for any other type of battery? Apart from voltage, Which still stands at 37v i believe. If you want 100amps then have it.

360 pulls more current then alot of heavyweights, its pretty much constantly pulling atleast 160amps. and probably over 250 when the disc is spinning up. And my tiny little 5amp pack doesnt even get warm after 3mins of abuse.

I think it should be part of the tech check to make sure whoever is running lipos is 100% compitent to use them. AKA the tech checker must have experiance with lipo's themself.

Currently all the people using Lipo's in featherweights seem to know the dangers, the advantages and the risks involved aswell as which brand of lipo to stay clear of. As kenny said thunder power and flight power seem to be the only brands used so far that i can think of. You get what you pay for.

LS + sabertooth = flight power
360 + ploughbot = Thunder power.

Both thunder power and flight power use the same cells. Just a different brand.

Id like to see lipo's being used in heavyweights- it would give a massive impact on the progress of the robots being built. I think the FRA should watch a few RC heli crash's and see the abuse they take there, They dont seem to explode after a 100ft smash into the floor.