e -max 110s electric scooter

i hadnt realised the 110s was so slow

in theory, there is a jumper connector inside the controller (controller will have to be dismantled, voiding your warranty) that can be removed which de-restricts the controller.

if the resulting new top speed isnt high enough, then you will have to raise the battery pack voltage aswell.

Note: any increase in average speed results in a dis-proportionate increase in power requirement. your range will be reduced at a higher speed. at 35mph, your range will be around 37 miles (if you want your batteries to have a good service life, then less than 30 miles).

in a few weeks ill have a 110s of my own to play with, so i can tell you more then.

note for future reference - when something fails on any EV you own, never replace with a stock item. there are always better parts available with far more documentation.

Matt

Hi!
You are right, it is far too slow! I tested it a few days ago. Do you have any more information about the "new" controller yet?
Thanks!

I understand that the new e-max controllers are firmware based - so the computer program would need amending to change the limit speed or remove it to allow top speed based on voltage. I have asked e-max themselves about how this can be done and I'm waiting for a reply. I'll post something here if and when I hear from them.

I have one of the control boxes that allows to change the following settings:
max output frequency (this is the setting that controls max motor speed, standard is 168Hz or 45kmh)
max battery current (standard is 45A, max setting is 80A)
max boost battery current (standard is 60A, max setting is 80A)

and a few other things that i cant remember (or rather wasnt so interested in)

problem is, the control box is different for every firmware revision.
So one programmed for one revision, is useless for the next (actually quite bad if used)

110srider - having a look at your controller, i suspect its from production date earlier than march this year.
All scooters after march this year have brown 80v ripple caps. the ones before have the 63v variants.

The reason the emax parent company dont sell the control box (to end users or even dealers) is due to warranty and liability issues.
in some countries going faster than 45kmh has serious consequences (for the manufacturer), particularly if you then crash and the cause of accident is determined to be excessive speed.
de-restriction of the scooter also voids warranty.

On the scooter i have de-restricted, the hall sensors in the motor failed.
I still trying to determine if this is a co-incidence or not.
It is possible the higher than rated frequency has caused failure (the motor in all current models has more poles than in the original emax, meaning a higher operating frequency).

Matt

Hello im new here

iv just purchast an emax 110s myself it is a good bit of kit but there is a few things wrong with it mainly lights staying on. anyway after a bit of thort its going for a makeover using a normal scooter wiring loom(with no gray boxes)new frount wheel with speedo drive new set of bars and so on . The thing is would a kelly 200amp 48v controler work with the emax hub any ideas.Allso do u know any good web sites for a 48v to 12v dc to dc converter im thinking about 150watt any help would be aprecated

not good at this spelling thing lol

a kelly controller would work fine, especially since you have already done most of the necessary re-wiring to make the other components work properly without the original controller.

the controller you have specified would work, however, if you are after more speed as well, go for a higher voltage unit.

The emax hub motor is a standard BLDC.

kelly controllers also sell dc-dc.

Matt

thanks for the info mat cheers