ae-Dan

iTrader: (39)

ok, thanks guys i will stay away from maxamps.

but i still need around a 400 gram or less 2s that will give me 20 mins. with at least 50c but prob need at least 60c to be safe

whitrzac

iTrader: (97)

Your not going to make 20min on 2s in a 1/8 buggy. Bump it to 4s and you should have a chance with a 4s 5000mah....

Davidka

iTrader: (86)

Lower kv motor and 3 or 4 s. You have little chance of moving a vehicle of that weight around for 20 minutes on 2s. C rating has nothing to do with it run time.

ae-Dan

iTrader: (39)

rtr with the losi 60c 6000mAh battery is 5.5lb

Racer X8000

iTrader: (2)

You could also try 2 smaller sized lipo's, like two 4000's, while it'll be a little heavier, you're still going to get the runtime you want, and if you're running weights, you could remove them when adding the extra battery.

Edumakated

iTrader: (19)

I'd go higher voltage. You can easily make 20 minutes probably with a 6s 2650 with the 810 due to its light weight. I was only burning barely over 100/mah a minute on a smaller indoor track (trackside) when I was running my 810 on 5s and a Teking t8 1400.

I have a custom Novak 550 that I had made specifically for use with 5s and 6s. I think it is 1300kv with the option 14mm rotor. I never got around to using it. Shoot me a PM if interested in it. I'll let it go for cheap.

2s works in the 810, but it really isn't cut out for longer runs imho. I found the voltage lagging near the end frustrating. I'd stick with a larger 3s pack at a minimum, but run times gets stupid long on 4s-6s with the 810.