Search found 1290 matches

by larsb
Dec 07 2019 3:55am
Forum: Items for Sale - New
Topic: Mobipus Controller Official
Replies: 47
Views: 6492

Re: Mobipus Controller Official

Don’t think samd bumps buyers? It’s just to cash up and buy it :D
I think problem is at mobipus side of the supply.
by larsb
Dec 07 2019 3:26am
Forum: Motor Technology
Topic: Revolt RV-series motor review and comparisons
Replies: 221
Views: 17998

Re: Revolt RV-series motor review and comparisons

To the moderator who has deleted the last postings: Since when do you prefer to have wrong and misleading statements here in this forum, written by someone who constantly treat others like shit which are involved in the discussion, instead of facts? I cannot believe it! Serious amount of copper win...
by larsb
Dec 07 2019 2:27am
Forum: E-Bike Technical
Topic: Programming APT AE96600 controller (UPDATE: don't buy..)
Replies: 119
Views: 8048

Re: Programming APT AE96600 controller (UPDATE: don't buy..)

If you read the thread you’ll know. In short words: -it’s huge and power output does not match the size -Program is not stable you can set parameters multiple times before they stick. -Different functions are disabled in different controllers, you don’t know what you get when you buy one. -It can be...
by larsb
Dec 06 2019 12:42am
Forum: E-Bike Technical
Topic: Programming APT AE96600 controller (UPDATE: don't buy..)
Replies: 119
Views: 8048

Re: Programming APT AE96600 controller (UPDATE: don't buy..)

:D QSV3 isn’t just one motor. Didn’t you have time to write a full question? If it’s a QS273 80h bike going 5000m uphill in the alps with two passengers then yes, it will get hot -it’s got 36fets -it’s super heavy and big (large thermal mass and cooling surface) -i don’t see many controllers here th...
by larsb
Dec 04 2019 12:54pm
Forum: Items for Sale - Used
Topic: LG 16S 60V 1.5kwh water cooled modules for sale (EU)
Replies: 17
Views: 386

Re: LG 16S 60V 1.5kwh water cooled modules for sale (EU)

Read my calc. Your packs are same size as monstarrs.. 16s 18.9Ah is the same as 10s 30Ah I have the 10S LG:s, they are ok, have gotten close to 300A on them. Vtc6 is only an example, pick any cell you like and compare.. if cell IR is 20 then 8p pack has 2.5mohm resistance. What matters is power outp...
by larsb
Dec 04 2019 12:38am
Forum: Items for Sale - Used
Topic: LG 16S 60V 1.5kwh water cooled modules for sale (EU)
Replies: 17
Views: 386

Re: LG 16S 60V 1.5kwh water cooled modules for sale (EU)

These are not 1.5kWh packs made of 26Ah cells: 96 cells, 6 modules, 6.7kwh total (useable) is 1117wh/pack (new) 1117/(16*3,7) gives 18.9 Ah per cell Validation back again: 96*3.7*18.9=6713wh Same power as one module (new cells and 30% larger capacity) with sony 18650vtc6 could be done by 16s8P of ce...
by larsb
Dec 03 2019 9:42am
Forum: Stand-up E-scooters and E-skateboards
Topic: Rusted Turnigy 6364 213kv motor screws
Replies: 3
Views: 347

Re: Rusted Turnigy 6364 213kv motor screws

Heat first, then oil after the heat cycles (when warm)
by larsb
Dec 03 2019 9:20am
Forum: Items for Sale - Used
Topic: LG 16S 60V 1.5kwh water cooled modules for sale (EU)
Replies: 17
Views: 386

Re: Unknown LG 16s pack with water cooling

Price with shipping?
Dimensions/outline of the pack?
by larsb
Dec 03 2019 1:19am
Forum: Stand-up E-scooters and E-skateboards
Topic: Rusted Turnigy 6364 213kv motor screws
Replies: 3
Views: 347

Re: Rusted Turnigy 6364 213kv motor screws

If you already damaged screw then there are slim chances getting it out without destroying it, it’s so small. Heat screw with a soldering pen (not to the point that you can’t hold the can) and let cool a few times if you have a high watt pen, otherwise don’t bother. Oil the screws Smack a slightly t...
by larsb
Dec 02 2019 1:59pm
Forum: Battery Technology
Topic: Unknown LG 16s pack with water cooling
Replies: 2
Views: 349

Re: Unknown LG 16s pack with water cooling

Looks very similar to the 10s LG packs i have from a volvo s60 hybrid. These: viewtopic.php?t=90395
by larsb
Dec 02 2019 12:45pm
Forum: Motor Technology
Topic: Max erpm and field wakening
Replies: 5
Views: 237

Re: Max erpm and field wakening

Field weakening doesn’t change the erpm limit of controller (what switching speed it can control)

it makes the motor run faster on a given voltage, that is possible until controller goes out of control somewhere above max erpm, possibly with a BOOM :D
by larsb
Dec 02 2019 12:40pm
Forum: Motor Technology
Topic: Query about Emsiso-500 motor controller
Replies: 2
Views: 159

Re: Query about Emsiso-500 motor controller

amberwolf wrote:
Nov 28 2019 2:45pm
What does Emsiso say about it?
:D
by larsb
Dec 01 2019 3:43pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: What is the easiest old-style moped to convert?
Replies: 2
Views: 210

Re: What is the easiest old-style moped to convert?

What kind of riding? Enduro racing or offroad strolling? I’d assume all old mopeds would need a lot of attention on brakes and suspension since 30-40 years take it’s toll on stuff. I’d buy a derbi senda or rieju from year >2000 to be on the more modern side of things. That’s european choices, don’t ...
by larsb
Dec 01 2019 8:00am
Forum: E-Scooter and Motorcycle General Discussion
Topic: rieju smx conversion project
Replies: 5
Views: 304

Re: rieju smx conversion project

I got this belt, it’s 20mm wide
https://www.keilriemenexpress.de/8mgt3- ... r-gt3.html

I don’t have a temperature sensor at the battery but i think 150A will be ok, i’ve used mine to 300A and the voltage sag is not huge.
by larsb
Dec 01 2019 4:16am
Forum: E-Bike Technical
Topic: Hall sensor replacement board
Replies: 6
Views: 174

Re: Hall sensor replacement board

+1 Just replace the bad hall with a ss411A And really recommend to get a hall tester while your at it: 08E83980-0744-41BC-A218-62D4451971F9.jpeg https://www.amazon.co.uk/Portable-Multifunctional-Brushless-Controller-Inspection/dp/B076PG7FHZ#immersive-view_1575191593992 They can be bought from aliexp...
by larsb
Nov 30 2019 2:53pm
Forum: Items for Sale - Used
Topic: 80100 mid drive setup. Motor, ESC, belt reduction drive
Replies: 6
Views: 690

Re: 80100 mid drive setup. Motor, ESC, belt reduction drive

I’ve run some months on a borrowed 80100 build. Impressive for the size and price..

I totally understand the ”build-move on” logic especially if the build takes a while. :D
by larsb
Nov 30 2019 1:49pm
Forum: Items for Sale - Used
Topic: 80100 mid drive setup. Motor, ESC, belt reduction drive
Replies: 6
Views: 690

Re: 80100 mid drive setup. Motor, ESC, belt reduction drive

Seems like a great deal. Out of funds currently so cannot buy it. Hope you find a buyer to appreciate it.
What’s the kV?
by larsb
Nov 30 2019 6:32am
Forum: E-Scooter and Motorcycle General Discussion
Topic: rieju smx conversion project
Replies: 5
Views: 304

Re: rieju smx conversion project

Some data in my rieju thread. Haven’t had any issues with the belt and the motor attachment - i am not using tensioners or swing slider. I think you’re solving a problem that might not need solving with the swing mounted motor, my motor position is the same as you’ll get. Speed is 110 km/h with 22/1...
by larsb
Nov 29 2019 1:39pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Morini Dart conversion - motor advice needed
Replies: 4
Views: 314

Re: Morini Dart conversion - motor advice needed

You know it’s all about the base, 'bout the ba.. battery. 7PCkvCPvDXk 40kW requires a huge battery, for range and for power output. Motor is easy :wink: I’d get a QS 273 80h hub motor to be able to fit the battery in the frame https://m.alibaba.com/product/60472157907/detail.html? 14kw seems weak bu...
by larsb
Nov 29 2019 1:26pm
Forum: E-Bike Technical
Topic: Help me choose a good affordable 72v controller for: 5KW QS V3 Rear Direct Drive Hub Motor
Replies: 4
Views: 376

Re: Help me choose a good affordable 72v controller for: 5KW QS V3 Rear Direct Drive Hub Motor

Also going for the 24F nucular even if i never used one.
Votol em72150 for cheaper option. 200A battery, 370A phase. Unlocked. I am currently running 250A through one since some time.
by larsb
Nov 29 2019 3:25am
Forum: E-Vehicles General Discussion
Topic: Votol EM-100 & EM-150 controllers
Replies: 423
Views: 29073

Re: Votol EM-100 & EM-150 controllers

I think it should be separate thread, this is already long enough.
by larsb
Nov 28 2019 2:16pm
Forum: Items Wanted
Topic: 22 inch Speedway tires...
Replies: 4
Views: 611

Re: 22 inch Speedway tires...

Yep, found sources on first page on google search.

?

Do you have speedway wheels? I’ve thought about building on a speedway frame. They are super cool
by larsb
Nov 27 2019 1:21pm
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1274
Views: 232126

Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

1) I don’t get 6000 or even close to it as the torque is too low at this rpm
2) field weakening lowers efficiency
3) i have enough current to drive a faster motor

8000rpm and torque would be comfortable :D