Search found 26 matches

by offpist1
Oct 20 2018 10:37am
Forum: EScooters/EMotorcycles
Topic: electric motion 5.7. Need new BMS
Replies: 9
Views: 2563

Re: electric motion 5.7. Need new BMS

New BMS mounted. I went with the Speedict 15S. I am also working on building two more batteries. One will be 37AH using cells from 2018 model E-Golf. This one will be slightly heavier than the oem one but much better range an also less voltage sag. The other one i think i will make an light wheight ...
by offpist1
Oct 19 2018 1:38am
Forum: Battery Technology
Topic: Speedict neptune lite
Replies: 187
Views: 20548

Re: Speedict neptune lite

My application is for an 13S Lithium Ion with 10A charge and 200A peak discharge. Instead of using the "controller output" on the Neptune 15 directly to the controller, can use this output to control an relay instead? I understand i will not be getting current readings this way but that i...
by offpist1
Oct 04 2018 11:23pm
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

[Moderation: forsale offer in tech forum deleted]

The schematics for it is attached.
by offpist1
Sep 29 2018 2:25pm
Forum: EScooters/EMotorcycles
Topic: electric motion 5.7. Need new BMS
Replies: 9
Views: 2563

Re: electric motion 5.7. Need new BMS

I did open the BMS and several component are burned. The previous owner messed up somehow and connected reverse polarity or something. And no, the BMS is completely dead will not allow charge or balance. The connectors from "buttom and upper link" and the RS232 was not in use. So its very ...
by offpist1
Sep 29 2018 1:33pm
Forum: EScooters/EMotorcycles
Topic: electric motion 5.7. Need new BMS
Replies: 9
Views: 2563

Re: electric motion 5.7. Need new BMS

Here is also an picture of the bike.
The battery modules is held together with 30+ rivets that has to be drilled out to open the battery.
I installed M4 rivet nuts instead, making it more easy to access the battery later on.
by offpist1
Sep 29 2018 1:23pm
Forum: EScooters/EMotorcycles
Topic: electric motion 5.7. Need new BMS
Replies: 9
Views: 2563

electric motion 5.7. Need new BMS

I bought an second hand Electric Motion 5.7 from really cheap with an broken "battery module". The previous owner opened the battery and somehow managed to damage the BMS. Then he contacted electric motion and got an offer for an new battery for 4000 pound.. The BMS can not be sold despera...
by offpist1
Sep 29 2018 11:24am
Forum: Battery Technology
Topic: Speedict neptune lite
Replies: 187
Views: 20548

Re: Speedict neptune lite

My application is for an 13S Lithium Ion with 10A charge and 200A peak discharge. Instead of using the "controller output" on the Neptune 15 directly to the controller, can use this output to control an relay instead? I understand i will not be getting current readings this way but that is...
by offpist1
Sep 06 2018 10:24am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

The rear suspension is now perfect..

This winter i will take apart the front suspention and try to find some softer springs to fit.. the front is way to stiff.
by offpist1
Aug 24 2018 7:38am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Yes, its quick ;)
Pushing 90+ km/h and it gets there very fast.
Quite happy about it.

I also ordered an new rear damper for it, should arrive sometime next week.
by offpist1
Aug 24 2018 2:38am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Finding the manual for how to program the GPS-Pulse sender was not easy but i got the seller on eBay to send it to me.
Here its described, and it works from 2.500 to 20 000 pulses pr km.
by offpist1
Aug 24 2018 12:36am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Maybe you did not read the whole tread, but i have 21S of 50AH Lithium-Ion (3,9KWH nominel), not SLA.
by offpist1
Aug 23 2018 10:42am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Just want to make an update on the Chinese GPS-Pulse sender i mentioned in one of the previous post. (post 15) It arrived and it was really easy to install and works well! By default it comes as 5000 pulses pr km but at this setting it showed almost half the speed. After calibrating it now shows cor...
by offpist1
Aug 07 2018 2:20am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

I broke my arm doing electric skateboard in July so i have not really been able to ride the scooter a lot. Today I took the scooter to work for the first time. Its an 20 km distance and its mostly 70 km/h speed limit all the way. Doing average 70-80 km/h the moped used only 11 AH of the 50 AH availa...
by offpist1
Aug 02 2018 3:39am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Thanks, but are you sure this can not damage the Hall sensors inside the hub, or even the hall sensor inputs of the controller?
Not sure i want to risk it.
by offpist1
Aug 01 2018 2:38am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Thanks. I measured the voltage on the "speed (11)" wire and it gives out 5V. If i repeatedly short to ground the needle moves up a little. Fastest i can do by hand is moving the needle to 5 km/h. But at-least I know what kind of signal i need. I also connected the brake and boost wire from...
by offpist1
Jul 29 2018 12:52pm
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Btw this is the GPS to pulses sender i am talking about.

https://www.ebay.com/itm/292631362613
by offpist1
Jul 29 2018 12:47pm
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Today i located the two wired that runs thuV the ignition key and connected both the "ignition on" for the motor controller and also the 90V to 12V adapter thru the ignition. The two wires that run thru the iginiton key are the red and black wires on this plug. Just cut the two wires and y...
by offpist1
Jul 06 2018 7:28am
Forum: EScooters/EMotorcycles
Topic: E-max 110s lifepo4 upgrade
Replies: 168
Views: 42754

Re: E-max 110s lifepo4 upgrade

Mine has the black epoxy so I can't do those modifications you show. Hey flexy/yokean I mended my black epoxied Msu board and although you can't really get to the top side I think yokean's mods are all the the underneath which I've learnt from taking mine apart are not covered in black potting. So ...
by offpist1
Jul 04 2018 11:25am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Thanks for the advice John, i will monitor the temp of the controller and motor. I have an handheld IR temp meter, that is an good start. But for initial tests today (30 min with quite aggressive driving the controller and motor seems not warm at all. The motor controller is hardly warm by the touch...
by offpist1
Jul 04 2018 1:55am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

So I finished the battery build last night. Its almost as if the VW E-UP batteries are build for this bike ;) I reused the original bolt system that came with the batteries. This enables me to bolt it to the floor, and also to stack two modules on top of each-other. So for now my battery is actually...
by offpist1
Jul 03 2018 2:34am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Thanks for your help. I installed the Kelly Controller last night, and it worked right away. Almost too easy. Still running on 56V battery. Will take it for an spin later today, but initial tests seems very good. This controller came with an extra cooling fin. And i installed in an similar matter as...
by offpist1
Jul 02 2018 6:26am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Ok, I will try to go ahead with the Kelly Controller installment, it can be an fun project. Using VW E-UP lithium-Ion cells at 25AH each, my plan is to do an 21S2P setup. At 4,1V pr cell at full charge, that gives me 86,1V and 50AH. (3,888 KWH nominel) For now i will deal with an BMS later, and also...
by offpist1
Jul 01 2018 1:24am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

Thanks for relying. I live in Oslo/Norway and i am happy to ship it to you, and pay some for your time to try. Got rely from proud-eagle that they stopped making this controller a long time ago and do not have any programmers for it any more. I could swap out the controller, but it seems like lot of...
by offpist1
Jun 25 2018 1:02pm
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

When under 52V the motor controller does not cut at full power/boost any more.

Right now my main priority is removing the speed limiter. (168Hz setting)
by offpist1
Jun 23 2018 9:55am
Forum: EScooters/EMotorcycles
Topic: E-Max 90S questions.
Replies: 35
Views: 4257

Re: E-Max 90S questions.

The voltage is 57.5V alt full charge. 14S x 4.1V.
Not so different from the 16S Lifepo4 others have been doing.

From my understanding this should be well within the range of the electronics onboard?

I have yet to try draining the batteries below 50V, will try this tomorrow.