Just read through this thread, but I'm still confused at to where I can buy A123 packs that are already built? I was looking to run a MM and a 8 or 9 XL on 4S LiPo but I don't race. Would A123 cells be better for a first timer? I'm running NiMh cells through the BL E-Revo and will be converting mine soon, which is why I'm asking about these cells.

you can get them at

123racing.com i believe for already built ones.

they are like 220 for 2 3s1p packs and a charger. the charger will get them done in about 15 min. anxd then the runtime will be about 7-10 per pack.

they are REALLY nice as long as you can find a way to mount them. i had them in an older bl rustler and the power was insane

i was running 6s1p with them also in my revo and it had SOOOOO much more power than my 16cell nimh batteries.

it is amazing what these cells can do. they are probably not the best for racing though because of the weight issue.

Well I like keeping my Revo lightweight, so I'll probably go with LiPos.

The only way A123 makes sense if if you buy 10 cells via dewalt on Ebay.
It will cost 10.00 per cell if you shop well.

If you were going 4s lipo, go 5s A123
So a 5s2p would cost you just over 100.00

But now you would have to find a way to charge them.. as cheap fast systems are for 3s or 6s

Maybe Lipo's is the way to go.

Highflier