Advise on brushed DC Motor controller (searching ) please ?

[dragonfire]

In order to upgrade a 24v 750 watt setup to 36 volts ( on 12-12 or 12-20 sla´s most probably, so don´t mind the final connectors) on a brushed dc scooter motor, what would be the recoomendable controller if ´the built should remain on a somewhat feasable budget ( no kelly etc controllers) and the current shall be modulated by torque and not rpm ( ohm frequency not voltage).
any recoomandations for a good controller source and if posible allready fitting ( crimped plugs) drive controller ?

 

[dnmun]

there was just another guy with a goped scooter asking how to put the 24V lifepo4 headway pack in parallel with his 24V SLA.

finally got him to take apicture and he had a 30V caps which prevented him from going to 36V.

have you looked at your controller to see if it could be modified to run at 36V?

http://endless-sphere.com/forums/viewtopic.php?f=14&t=11889&start=15

 

[dragonfire]

the esr controller can´t , i allready figured this of postings over in the gopednation-forum.
i am trying to gather a blown one for experimenting since i don´t wan tto blow a 229$-part with my soldering "skills".
if i wanted to mock up the existing esr board it would be like upgrading the caps and FETs to IRF4115's or 4310 ( infineon) and add another resistor to the voltage divider/regulator and put on a another-voltage low-voltage regulator circuit in the controller and beef up shunts a little. if i get kinky maybe a dual-layer setup for paralleling the mosfets on the other side of the board but this is rather unlikely.
This is not ment to go in my scooter ( but mos tliekyl on my spare esr motor in a pocketbike with flipped rear sproket), the owner of the other esr setup has the intention to be faster than all the other esr´s with stock motor ( and will need a new charger anyways so he can go to 36 volts and a 50$-ish chinese controller, so was my thought) so out goals match up in this point.

 

[wasp]

i have a stock 24v dc controller that came off my schwinn izip
the reason i mentioned this is they are dirt cheap and small
have 63v caps and 35amp rating
this one was overvolted from day one 40v than 54v put 3000 plus km
never had heating issues even though izip puts controller in enclosed compartment
would probably be a very good cheap controller upgrade for scooter

 

[dragonfire]

i just read that he controllers on razor scooter are ohm´ed / potted so a 36v bladez-controller with 5k ohm throttle could be worth a shot.