Schulze 149.18 E.S.C : need more volts
 

The 149.18 handles 18 cells at most, but I need to use 20 cells, actually, and I dont know if its possible to use 20 cells with this controller? is it possible? if not, why?

Why does the 9918 have the ability to handle 20 cells? anything special?

I wouldn't try it.I think Serum says it's voltage that seems to kill the 18.97.Maybe the 149 will be different,maybe it won't,i wouldn't try it unless you can afford to lose it.

i think that bk just under rated them a little to cover there ass' and did a little research and found that they are very capable of running 20 cells with ease

Is there a way to make the schulze handle 20 cells? It can handle 5 lipos, unlike the 9920 which can only handle 4 lipos.

I'm pretty sure the 9920 can handle upto 6s lipo (22.2v)

If the 9920 can handle 20 - 1.2V (24V) cells it can easily handle 6 - 3.7V (22.2V) cells.

yes capt, the 9920 can handle 6s lipo with ease. were did you get that info?

Captain was asking about a SCHULZE controller, but everyone answers with a bk controller answer. :)
The controller can likely handle the 20 cells, Captian. It isn't the voltage that kills the Schulzes, it is current and "loose connectors". have a look at the capacitors on the controller. BK uses 50 volt caps, while Schulze was using 25 volt caps. Bear in mind, a peaked cell will have higher voltage than the 1.2volt we use as a general guideline. I have overcelled some Schulze controllers with no ill effects, and have under celled other schulze controllers with ill effects. If you over cell the controller and it blows up, then your out of luck. If it works, then your in luck. Basically, it is a matter of whether or not you want to assume the risk. :)

Okay. Thanks, Monster. I'm sure I read it somewhere that the 9920 can handle 4 lipos only, but if you guys are sure about what you say, then I can't argue with you. I have the 9918 and the 149.18. I'll use the 9918 with my truck as soon as I receive it and finish building it. The 149.18 will be used for the Brushless Bazooka Project. After I accomplish my Bazooka Project, I'll use the 149.18 with 20 cells in my truck, if Allah permits. Wish me luck, guys.

I am confident that the 9920 can handle 6s lipo. It is less voltage than 20 cells. Some people have ran 6s on the 9920. Not sure who. I have thought of trying 20 cells on the schulze as well. Just didn't want to kill it so never did.

My shculze only has the 25v caps on it to.

I wouldn't put my money on a 18 cells schulze loaded with 20 cells.. they hardly stay in one piece on 16 cells..

What is the reason not to buy the new MGM 16024? (cheaper, and better service)

I thought promod put his controller (schulze) over quite some abuse when it comes to voltage..

when is the MGM 16024 coming out? Where is it avaliable?

Mike ordered them.
I think i will get mine thru MGM directly.

I contacted MGM about this, they simple are available.

how many cells can teh mgm handle?

16024 is 24 cells 160A.

Anyone know if the braking issue is resolved now?I believe the 16016 was going into reverse if you brake/lift off/then brake again.

Also what's the deal with the 'hydro' versions? are they waterproof?

they have change the programming some gustav. It don't have the double throw reverse now.

I already have the 149.18, Serum. BTW, how much will the MGM cost? I might get it in the future, though I'm planning on using 32 cells with my future truck.

the only thing now that i don't like about the mgm is that they force you to use 3.5mm gold...

That does not look like a problem, dude. Do you want to hardwire it?

If you are planning on running 32 cells, you might consider selling the schulze and take a bigger one. Takes away some risk for sure.


I too think that the 3.5mm plugs are too small. I contacted MGM about it, and i was told that it was more relavant for boats, because boats take a higher constant current.

On the other hand, i like the idea of a loose cable between the motor and the controller. (lehner 19/22 series no high-amp) these motors also use plugs.

that would make monthy male gold swapping alot easier...

[QUOTE=Serum]If you are planning on running 32 cells, you might consider selling the schulze and take a bigger one. Takes away some risk for sure.

I'll get the 3695 e.s.c in the future, if possible. What is the rpm limit of this cont.?

It hasn't got the 42k limit.

Right now, the best controllers ,allover, are the Micro series( especially the 20150 and the 36150). The 160.40 e.s.c is very big and stupid in terms of design, in my humble opinion, while the 36150 ( though it has the irritating rpm limit) still managed to keep the traditional design of the bk controllers without enlarging it. Plus, its a bit cheaper than the schulze. How much does the 36150 cost? its not listed in the store.

490 or 499, just ask Mike if you want to know for sure. 24 volts and the setup you had in mind with the new MGM should be okay too, according to MGM it should be around 300 euro. (350-360 dollars)

MGM 16024 I wonder if it can handle 8c lipo?

yup. it sure can.

Maybe that is what I should use in my jammin crt if i ever want more cells I am covered and 160 amps should be plenty

200 peak for 5 secconds... Not bad..

Anyone tried their MGM 16024, yet? How does it perform?

I have one, I'm still waiting for my 2240 to come in to try it out. I will keep you posted.

I never liked my mgm 160. They were supposed to have fixed the freewheel problem but to me problems still remain unless it has been revised again. When you fly off a jump if you let off the throttle even slightly it's like slamming on the brakes. Instant nose dive! The low end throttle was very smooth but overall it's a very hard controller to drive. I wouldn't buy one till I knew the programming has gotten better. If they could refine it just a little it would be a good controller. Also the 3.5 plugs kept coming out on the controller side. It would better if it was just hard wired.

Why spend money twice like me? I've got a BK 12020 now, it is much better!

Schulze ESC

1. Internal caps rated at 25V and there ratings temperature dependant.
2. Power FET's can be 30V rated.
3. Outside caps rated at 25V (but can be easily replaced, just need to find the good LOW ESR ones.)

Why it is not safe to run then at 25V?
Because switching (PWM) creates voltage spikes which are higher then battery voltage and that is why capacitor rating should be higher then spikes amplitude. Spikes amplitude based on leads resistance, inductance, capacitance and FET's properties...
Things like bad connection, small gauge wires, and long wires contribute to increase in spikes amplitude. Good capacitor helps but overtime gives up and warm/hot capacitor is a bad sign.

Schulze is good up to 16 cells my personal opinion based on what I've seen inside.

Artur

P.S. But looks like 149.18 version is much more friendly to do the mods, not a sealed sandwiched SOIC's...