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  1. x.l.r.8

    What is the Best BMS for LG Chem batteries?

    Same pack, same configuration, I rebuilt the modules so instead of 1p 16s they are 2P 8S with a connector on each module to Check them easily. 16 model S BMB’s onto a custom BMS to control them. The modules have 4 10k thermistors so comparable with the Tesla BMB’s but obviously only room for 2...
  2. x.l.r.8

    Bought a used emmo proton testing batteries..

    If the motor is anything like the EM-1 then you may find little increase in going to a slightly larger pack. The motor is saturated already and you just warm up the motor and see a little less voltage sag. The actual controller is okay, not the best but not the worst. The swapping the motor out...
  3. x.l.r.8

    buddy electric car

    Maybe you can look on the diyekectricar wedsite, they have a comprehensive classifieds abd there are a lot of used motors there.
  4. x.l.r.8

    Tesla-Powered Kit Car Runs 9-Second Quarter Mile + M3 PMAC

    Did you look any further into the conversion. i have teh P85 motor and inverter on its way along with the controller. The batterys I';'m going to worry about after I have the motor installed. I assume driven conservatively I should be able to go for short drives, not that its being built for...
  5. x.l.r.8

    Add your EV etiquette tips for the newbs

    So if a car is fully charged and sitting in a parking spot your saying don't unplug, I have a sign on my car stating to go ahead if I'm charged, but my car also tells me when its fully charged so i simply move my car. Tesla have started implementing charges at their Superchargers if you are not...
  6. x.l.r.8

    52V bms

    your best bet is (choose the shortest delivery time from China here) and just make sure you do not undersize it otherwise it will cut out going up hills) trust me I thought matching to my controller was smart at one time, much better to match the output potential of your pack. The problem is the...
  7. x.l.r.8

    Recommended charger for 12s, 4.1 per cell (49.2V)?

    Why not the Luna mini and turn down the voltage to suit, I turned up my 48v to charge 52v pack. https://electricbike.com/forum/forum/knowledge-base/chargers/38871-how-to-adjust-the-luna-charger-mini-and-advanced
  8. x.l.r.8

    Ebike (lead acid) stored over winter in un heated garage question

    If they were kept charged the freezing point is something like -60 c. I don’t believe it got that cold in Toronto this year. However batteries don’t like being cold hence the huge reduction in CCA in car batteries, even worse in the SLA batteries, try a few charge cycles and keep it plugged in...
  9. x.l.r.8

    Need Help - New Batteries Only Charge Halfway

    80v is an actual reading or just indicated by the bars? you need to see what you are drawing by using a cheap meter https://www.aliexpress.com/item/Battery-Tester-TK15-High-Precision-LiFePO-Lithium-Lead-Acid-Battery-Testers-Coulomb-Counter-50A/32823138463.html?spm=a2g0s.8937460.0.0.m7wCsB...
  10. x.l.r.8

    Advanced Chargers

    I got a luna advanced charger about a week before I decided to go to 52v and dropped the money on a Satiator and I am glad i did, I have a 72v pack now along with 65v pack and its so convenient to use. And silent
  11. x.l.r.8

    Tesla PEM heat sink material required

    The problem appears around 40,000 or 5 years. The answer is a remanufactured PEM at $10,000 that has a 3 year warranty. They simply replace the compound. The goal for them it seems is to get people to upgrade to the 3.0 battery pack with an upgraded PEM that uses better quality IGBT’s. If a...
  12. x.l.r.8

    Tesla PEM heat sink material required

    Okay, I have a tesla roadster that has the well documented PEM failure The answer seems to be replacement of the thermal layer under the IGBT's https://teslamotorsclub.com/tmc/threads/roadster-pem-failure.88028/ But there is little conclusion as to what that may be. I'm hoping the collective...
  13. x.l.r.8

    Mid drive vs Hub Motor for 10000 watt project

    That controller looks suspiciously like the daymak em1. i would go for a recognized controller rather than one of these. That just my personal opinion though
  14. x.l.r.8

    Mid drive vs Hub Motor for 10000 watt project

    If you have the stock tires that are designed for e-bikes that will throw your balance out at those speeds. Fortnine.ca are pretty good at prices and delivery
  15. x.l.r.8

    What lcs display is compatible with my controllers?

    None of your links actually work so its a little hard to know exactly what you have. your guess is correct the controller will be the only way to unlock more speed (that and a lot more pedaling) but you are probably expecting a lot from a 36v 500w motor with an 8Ah battery. that will assist your...
  16. x.l.r.8

    Mid drive vs Hub Motor for 10000 watt project

    I’m with the controller to. Your battery is 3 times better than mine and I get easily equal your performance. The motor will do 75 km/h with 72v so any of the proven controllers (Kelly, power velocity, sabvoton) would probably do what you want. All should plug up to your CA. I wouldn’t go...
  17. x.l.r.8

    Mid drive vs Hub Motor for 10000 watt project

    Something sounds wrong, Is the CA verifing your voltage/Amps because I would expect the increase in voltage to be pushing closer to 60km/hr. Its a super heavy bike but so are a lot of DUI scooters and they are going 60km/hr for 50km with pretty much an upgraded controller and good battery...
  18. x.l.r.8

    Mid drive vs Hub Motor for 10000 watt project

    wondering how you are going to try and license and insure this once its done, mrcrash had the same problems. if 55kph is dissapointing on an bike designated to go 32kph then bite the bullet and get a motorbike, even a reasonable sized motorbike will do what you want, or build an electric...
  19. x.l.r.8

    Frustrated Newbie cant get any power

    did the xt90 have a green marking on it (they do an antispark version) otherwise even with power off at the controller switch one expects a spark. As previously mentioned you need a voltmeter to check the battery for output voltage before you even try to investigate further. saying it wont run...
  20. x.l.r.8

    Supplimentary batteries for a ZEV scooter

    why not buy a second charger and charge at work if able. 2nd choice and probably the easiest get a second pack the same as the 1st in capacity and either fix it somewhere and swap plugs over for the way home. that way you have a second pack and if one goes you still have your scooter. Yes you...
  21. x.l.r.8

    Car replacement in London/Other Cold Weather

    Middlesex, from around Greenford to around Hillingdon is served by great bike paths used by no one. Hillingdon/ Uxbridge is the end of the line for the train and its a slow painful tube into and across London, not as painful as driving though. I used a bike daily fir 15 years from Hillingdon to...
  22. x.l.r.8

    Winter Projects ... ?

    https://drive.google.com/open?id=1-fQBUcRvlsKyHA3L6V50cPVrBksts-7V Motoremmo project. Winter bike using the 52v battery I use in my big dui scooter. It goes plenty fast enough and I want to make it super light, I have some Scooter winter tires and I want to make the pedals geared to pull away...
  23. x.l.r.8

    Standard Help me build an Ebike thread

    why not one of these, it has pretty much all the info you need. https://www.aliexpress.com/item/Battery-Tester-TK15-High-Precision-LiFePO-Lithium-Lead-Acid-Battery-Testers-Coulomb-Counter-50A/32823138463.html?spm=a2g0s.8937460.0.0.YfcV9h you can move it bike to bike and not have to have 48+v...
  24. x.l.r.8

    Golden Motor BLT behaves strange

    Have you played with the settings, like put it to 60 degrees. Or swap it to reverse direction. Also the voltage is only set at 24v. It reminds me of a hall sensor out or a phase wire mismatch.
  25. x.l.r.8

    Is this a sine wave controller?

    $120 is pretty reasonable, in a few years this will be the standard but right now there are factories full of square wave controllers and they are the reason you have $40 controllers on ebay, but the real fact is the stock one its probably as good, these are cheap replacements rather than...
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