Search found 708 matches

by eee291
Jan 21 2019 8:18am
Forum: E-Vehicles General Discussion
Topic: Cheap VESC (VESC 4.12 redesign)
Replies: 79
Views: 2202

Re: Cheap VESC (VESC 4.12 redesign)

It'll stay in the Outbox until the other person reads it.


Nice Controller project btw :thumb:
by eee291
Jan 21 2019 8:17am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 862
Views: 51262

Re: bluetooth BMS?

https://imgur.com/a/gevHkWj Had a little accident today :roll: I wanted to charge a Cell with my EBC-A10 Charger...while the UART programmer was still plugged into my PC :shock: It blew the GND trace on the BMS and my UART programmer and probably did some more damage. I tried soldering the blown tra...
by eee291
Jan 19 2019 10:55am
Forum: Motor Technology
Topic: Alternator into BLDC
Replies: 8
Views: 170

Re: Alternator into BLDC

Image
Do some research on Delta vs WYE termination, it should clear some things up.
by eee291
Jan 16 2019 6:25am
Forum: Motor Technology
Topic: SiliXcon FOC Controllers, small, powerful and many features
Replies: 5
Views: 253

Re: SiliXcon FOC Controllers, small, powerfull and many features

Hmm the SC and SL Controllers are interesting since they go up to 24S Lipo according to the datasheet. EDIT: It's the same guy that made this video. https://youtu.be/PcBaZ9sO9A4 I remember him posting about his Controller Company on here a few years ago. It used to be called PearControl https://endl...
by eee291
Jan 16 2019 6:11am
Forum: Battery Technology
Topic: Lots of Durathon batteries
Replies: 4
Views: 171

Re: Lots of Durathon batteries

That depends on what the Batteries have been through.
You didn't even mention what kind of batteries you've got.
by eee291
Jan 15 2019 4:16pm
Forum: E-Bike General Discussion
Topic: Soldering novice: charger wire to BMS board
Replies: 8
Views: 137

Re: Soldering novice: charger wire to BMS board

You can take a drill to it if you don't damage the copper trace underneath the PCB coating. But I think you might be having an issue with your soldering iron or method of soldering. Do you have any flux for soldering or rosin core solder? If you use solder made for plumbing it won't stick to the cop...
by eee291
Jan 15 2019 2:46pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Knight Electric Motorcycle 5000w
Replies: 24
Views: 511

Re: Knight Electric Motorcycle 5000w

I agree with Skeetab5780 100% I'm pretty confident in my DIY Lithium Batteries. I got myself a cheap electric scooter 3 years ago that I immediately retrofitted with a new Controller and lithium battery. I put in a 72V 30Ah pack that is still going strong today, not something you can say of most Chi...
by eee291
Jan 13 2019 1:05pm
Forum: E-Bike Technical
Topic: Kelly KLS 7218-M Identification not working
Replies: 11
Views: 128

Re: Kelly KLS 7218-M Identification not working

246C in the controller would be cutting the power but you should get overtemp error from the controller at the same time.. I don't think so, because it's not reading the thermal sensor in the first place. My guess would be that the thermal sensor got disconnected somehow, ie. broken wire. Whatever ...
by eee291
Jan 13 2019 12:18pm
Forum: E-Bike Technical
Topic: Kelly KLS 7218-M Identification not working
Replies: 11
Views: 128

Re: Kelly KLS 7218-M Identification not working

I think your controller has an issue. If you look at the status tab it says Controller temp 246c!
It's also reporting ''internal error'' on the status screen.


I suggest you contact Kelly support for warranty repair.
by eee291
Jan 10 2019 5:12am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 862
Views: 51262

Re: bluetooth BMS?

The 100A version is more than enough for 80A bursts.
I'm not 100% sure about the balance wires on that BMS version, but looking at the pics you will have to make it yourself.
It's not difficult at all you just have to plug the pins into the connector.
by eee291
Jan 10 2019 4:19am
Forum: Battery Technology
Topic: bluetooth BMS?
Replies: 862
Views: 51262

Re: bluetooth BMS?

What is the voltage delta between the two groups?
You could also try power cycling the BMS.
by eee291
Jan 09 2019 12:45pm
Forum: Battery Technology
Topic: Real or fake samsung 25r's
Replies: 2
Views: 108

Re: Real or fake samsung 25r's

B or C grade cells aren't marked in some cases.
But since the Capacity checks out then maybe you could try measuring their internal resistance.
by eee291
Jan 09 2019 12:34pm
Forum: Motor Technology
Topic: Help wiring brakes.
Replies: 3
Views: 96

Re: Help wiring brakes.

After connecting the EBS wires, did you try shorting the low potential break wires? I just want to make sure since there are some people that don't know that. The identification procedure is used only once when connecting it to a new motor. If the motor is spinning in the right direction, then there...
by eee291
Jan 09 2019 8:23am
Forum: Items for Sale - Used
Topic: LG Chem 10S2P battery modules - 37V30Ah - 1100 wh [EU] [SOLD]
Replies: 51
Views: 5567

Re: LG Chem 10S2P battery modules - 37V30Ah - 1100 wh [EU] [SOLD]

Here is a guide on how I remove the Cells from the packs.
https://imgur.com/a/rvJkNPw

I might make another one where I solder the Cells in different configs.
by eee291
Jan 07 2019 3:23am
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 54
Views: 2525

Re: Votol EM-100 & EM-150 controllers

If you do the math you consume 90Wh/km which sounds reasonable for a 400kg car.
I consume ~55wh/km on my moped going 50km/h
by eee291
Jan 03 2019 11:30am
Forum: Battery Technology
Topic: Would anyone have info on this huge cell?
Replies: 4
Views: 196

Re: Would anyone have info on this huge cell?

Punx0r wrote:
Jan 03 2019 11:06am
looks a little wrinkly!
Indeed, also has some Alu oxidation which is very un-LG like quality.
I have some 15Ah LG pouch cells, they have a plastic coating on them and look way better.
by eee291
Jan 03 2019 4:23am
Forum: E-Bike Technical
Topic: 22 cell charger can charge 20?
Replies: 22
Views: 561

Re: 22 cell charger can charge 20?

That's great to see but I'm worried about your battery life.
I would make sure it absolutely doesn't go over 84V, ideally 83-82V.
Lipos degrade faster if you charge them to 4.25V every time.
by eee291
Jan 02 2019 12:04pm
Forum: E-Bike Technical
Topic: How to enable regen? Infineon XC846 Controller, SW900 display.
Replies: 1
Views: 117

Re: How to enable regen? Infineon XC846 Controller, SW900 display.

Connecting the EBS to GND via a switch should give you regen.
by eee291
Dec 31 2018 11:00am
Forum: E-Bike Technical
Topic: 22 cell charger can charge 20?
Replies: 22
Views: 561

Re: 22 cell charger can charge 20?

It doesn't seem too strange.

It's just that at 84V the current is supposed to start dropping until it hits 0.1A or so.
So maybe you need to lower the voltage some more.
You usually don't have to mess with the other two Potentiometers.
by eee291
Dec 30 2018 6:12am
Forum: Battery Technology
Topic: Meanwell clone- AD488.3-400W power supply mods
Replies: 117
Views: 10100

Re: Meanwell clone- AD488.3-400W power supply mods

https://www.aliexpress.com/item/Current-limiting-adjustable-voltage-and-current-regulator-480W-switching-power-supply-0-24V20A-0-48V10A-0/32825551332.html?spm=2114.search0104.3.9.cb9a1799YeQt7K&ws_ab_test=searchweb0_0,searchweb201602_3_10065_10068_10547_319_317_10548_10696_10084_453_454_10083_10618_...
by eee291
Dec 30 2018 3:13am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 529
Views: 63121

Re: kWeld - "Next level" DIY battery spot welder

I welded a 300 Cell Pack with the stock cables just fine.
You need to have the Welder above the Cells, similar to this:

Image