5s vs 6s

[lutach]

Originally Posted by rschoi_75

both sound great to me.

With all other things being held equal:
5s + 1515/1Y:
- expected rpm @ 18.5v = 40,700
- battery is cheaper,
- will run slightly warmer (but not hot),
- has slightly less efficiency, and run time. Which you may or may not notice, depending on how critical you are.

6s + 1515/2.5D:
- exp rpm @ 22.2v = 37,740
- more expensive battery (you could always buy another ma 8000mah lipos and wire your existing one in series, so maybe not).
- will run slightly cooler, be more efficient, more run time.

echo.... echo... echo....

Here is some more info:

1515/1Y, 2200Kv, 7-25 volts and 110A* (Good batteries are expensive)
1515/2.5D, 1700Kv, 7-35 volts and 80A* (I ran 22.2 volts for 23 minutes using 2200mAh 3S packs)

(*30 sec. at max. voltage. Otherwise, = Watts/your voltage).

[Haldir]

lutach,

What kind of car were you running for 23 min.? Thanks.

[lutach]

Originally Posted by Haldir

lutach,

What kind of car were you running for 23 min.? Thanks.

My Ofna MBX buggy (AKA Pikes Peak look for a brief moment). Here is the thread of my lipos: http://www.rc-monster.com/forum/showthread.php?t=7776. I'm still testing them.

[starscream]

Originally Posted by Haldir

lutach,

What kind of car were you running for 23 min.? Thanks.

I think it was an RC18T

The most I ever got from ~22v 2200's was around 16 min under racing conditions

[lutach]

Originally Posted by starscream

I think it was an RC18T

The most I ever got from ~22v 2200's was around 16 min under racing conditions

I wish I could fit the 2200 in my 18th scale. I did run on a soccer field and the grass was a little high. You can see from the graph that I had several high spikes.