RE: 28% Sukhio Setup
My opinion: Keep it Simple for a 50CC
this works like a champ. batts are 2100 nickel low impedence. This setup is on my 1/3 scale suky. 7 5955TG servos, 5625 throttle, and HS81 choke. works great. This setup is good for 8-10 amp continuous, 15-20 burst. Overkill for a 30% but the redundancy is very nice in case you lose a battery or switch. The AR7000 doesn't pull any more power than anything else, but it is sensitive to voltage drops below 4v. Use 6-7 volt systesm, not 4.8v. The only reason I used the miracle regulators was for the failsafe. The Deans are not necessary, but I like em and they are easy to unplug, and the supply to the regulator has big wires to take advantage of full battery power.
Guys. Most of the problems I have seen thus far on nickels is using a hi impedence pack that cannot deliver, or using a regulator that gets hot and loses current. These simple little miracle switches are cheap and reliable, set to 6v. THe switch and charge port are built in. Im not trying to sell anyone, but they are good product and simple. The batteries will draw down close enough not to matter. I wish MPI had an equivalent unregulated failsafe switch based on this design. that would be the heat.
When I get my suky and I get home from this sandbox tour, I will install A123's with HD switches though and NO regulators. As simple as it gets. Please consider that option and you will never have a supply problem again. I set this up originally for standard LIons, but then A123's came out, so i will just use a standard failsafe switch from now on such as the Badger/Wolverine from Fromeco. Or a standard HD switch from Smartfly or JR. For those who dont know A123's are 3.3 volt packs, so a 2S is 6.6 volts nominal and can hold a 60C load. They wont heat, and they can be recharged at 4C, so a 2300 pack can be charged fully in 15 mins. IE...while refueling....
On the AR7000/DX stuff go to the massive thread for Spektrum DX7 and read about it if you want to know about it and about power in general. That thread has saved alot of people.
my 2C worth.
g