E-Max

Finally I changed my batteries to a brand new B&B set.
I thanks everybody for all informartions I gathered.

So while changing the batt set I rewired them into 2P4S (Batteries are linked in parallele and the four pairs are connected in serial)

Just to say that the current that the 2500w 60v mopeds put through a 41 amp current. This seems to destroy normal batteries very quickly. I have had 3 sets, the originals, cheap batteries, and a gel pack from Haze. The last two packs lasted about 150 cycles only before dying. Could this possibly be the controller? Should I get a new controller?

Anyway I currently believe they simply are not designed to handle that kind of current. I have now ordered some Lithium batteries from ebay V power.

Anyone have any leads on a motor for a Kasea? The serial number on the motor says "48V-2000" so I imagine it's the 2000 watt motor.

I also have a "Wind" scooter which is 36 volts and needs a motor. It was sold by Extreme. It's a brushed motor with the pedal sprocket. It was made by Angell.

If anyone has leads on motors for those that would be great.

Chip Gribben
futurev [at] radix.net

Just wondering if anyone in the community has any experience with curtis controllers? I know they've been around for a great many of years and hear them highly recommended for car conversions.

Curious to know if anyone has played with regen on the emax as well. Something like this looks like a good fit. Can anyone tell me what parameters you can program via rs-232 on this? Didn't mention that on page.

Just looking at the shoddy soldering job inside the controller
assembly, I should have expected failure after 2000 miles.

The bike died in the middle of my way home one
night. I took the controller apart to find an open
pathway on the far right burned open. I repaired this
today and the bike worked again but with intermittant
cuttout. Now it's back where I started. The bike turn on
lights,ticker, battery meter all work fine. Just no throttle.

After having to wait through a heavy, but not unusually heavy, thunderstorm, I was riding home from work when, topping a rise suddenly found myself facing a flooded dip in the road - going too fast to stop. It has never flooded like this before. I was left with no choice but to power through the 2 to 2.5 feet of muddy water hoping to get out the other side before something got ruined.

ON two recent occasions I've noticed the smell of what I believe is burning plastic after leaving the charger on overnight. The batteries work fine, I did 25miles yesterday w/o a problem. I think that 1 of my two chargers may have a problem determining when the battery charge is full. It seems to continue to run long after the scooter should be fully charged. The charger is not hot but the lights remain red. The floor of the storage compartment seems warm, I believe the batteries are getting hot and causing the problem possibly because the charger is not shutting off.

One of the most intractable problems I found with my E-maxs - probably any rear-drum brake equipped, Chinese hub motor e-scooter - is the awful brake squeal on some of them. I tried a number of things like sanding the drum and shoes, anti-squeal compound on the shoes, with only temporary, if any relief.

Hi @all! This is my first post on this community.

I recently bought a new E-Max 110S and I'm very happy with it overall!

However, I'm trying to find information on how to remove the 45km/h speed limit. I searched this forum and found some instructions to an old version of the controller board. Mine is very different.

I attached to this post two photos of the controller board. Maybe that can help :)

Can anyone maybe shed some light on this one before I get irritated enough and rip the hub assembly apart? I own a kasea ze2000 modified, the one with replacement batteries now working quite well that was documented earlier in this forum. This is the last irritation I'd like to get rid of before I consider my ev project complete.