Cell count vs Hull size, a discussion.

[Simon.O.]

Quite often I read, not just here but on other forums, "that hull is not suited to #S power"
What is 2 or 3 or 4S "power" ?? Nothing ! It is a voltage!

I have a few hulls that are powered with a 2S setup as they are leftovers from the days of brushed power when they were initially speced for 6-7 round cells. These are 20-22"hulls that were in their prime on Ni cells.

Now I have my big 6XL 4S rigger that is over 30" long and but is an Amp hog. I will repower that one day to be a 5 or 6S boat.

My new small hulls are 3S powered.
13" Cat 3S 1600mAh
15.5"Cat 3S 1800 mAh
18" Rigger 3S 1300mAh

I am about to try the 18" Rigger on 4S to get some real rpm to the prop.

For me I like the higher Cell-count as it gives me a lower amp draw for a given power output meaning less stress on components and especially a smaller esc.

So next time you read "I don't think I can run 4S in this hull" just consider this.

I will happily replace motors with a better kv to suit a high cell count as the maths shows that it is easy to do.
Time on water shows this too.

Big volts and small amps are for me. No rules here either

[ozzie-crawl]

the way i look at it as well is if you can go a extra cell or 2 but are worried about weight
the fact your pulling less amps means you could probably drop capacity a bit to help offset the weight with out sacraficing run time.
i remember running some small minicat hydros,by running a lower kv on 3s,we were getting huge run times as every thing ran cooler and batteries lasted longer

[ozzie-crawl]

the way i look at it as well is if you can go a extra cell or 2 but are worried about weight
the fact your pulling less amps means you could probably drop capacity a bit to help offset the weight with out sacrificing run time.
i remember running some small minicat hydros,by running a lower kv on 3s,we were getting huge run times as every thing ran cooler and batteries lasted longer