[neweuser]

Not sure if anyone has seen this, so i moved it here.

Here is my question: My girl has my old 9920. The controller says 99amp. I have been looking at getting her some lipo. But what's the difference between 2s2p vs 2s? They both have 7.4 volts? Also, The lipos' state that they are 60amp or 90 amps constant discharge, and 120amp 10 sec burst? What does this mean? Does the burst mean that a 99amp controller would not be able to handle it? Or do you go by the constant discharge rate? Thanks guys!

2s2p Means you have 4 lipo cells in that pack - 2 in series for 7.4v, two in parallel, so twice the mah of a 2s1p.

I'm sure the 9920 is capable of much higher brief bursts than 99 amps. Just the same as under normal running conditions it won't put out 99 amps constant for any real period of time. If you was pulling 99 amps all the time think what your runtime would be.

Its upto the motor any speed controller how many amps are running through your circuit anyway, the fact that the batteries can do 120 bursts doesn't necessarily mean it will. Although undoubtably any system can do that in very short bursts.

90 amp constant discharge batts would be ideal in my opinion. The more amps they can put out, the less the voltage will drop under lesser loads.

thanks man! exaclty what i was looking for! Although, i should have known that! LOL. good to hear, my girl is going LIPO too!

No problem :) Wish I could justify throwing lipo's in my Savage..think i'll wait another year for the prices to come down a bit more though. But so tempting..the electronics could handle 6s..

I hear ya. I finally just said XXXX it, because i got tired of the batts running out of juice! I like the power! If i were you, i would talk to Mike to see what he can do for you man! They are well worth it!

4S2P pack can deliver more power than a 5S1P pack.

you have got the power of 8 cells instead of 5.

You painted the shell of your girls ride pink?