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  1. J

    Can a controller be to big? (Modified Bionx motor)

    Hi Folks. I hope someone can sort me out. I took a 350w Bionx motor and removed the internal controller. It is now just a plain direct drive motor 3 stator wires and the 3 hall leads plus power and ground. I ordered a KT controller from aliexpress. Thinking bigger is better I ordered the 50a...
  2. J

    buying a SUNKKO spot welder 120vs220

    Hi I am thinking of getting this spot welder. Should i get the 120v version or the 220v version. i live in canada and the 220 is at 60Hz. I think if i get the 220v version it is specedat 50 hz. Not sure if this is a problem I heard 220v is better, but i am worried about the frquency as it...
  3. J

    battery charger repair

    Maybe i'm wasting my time here but.... My 48v charger blew up. My compressor started up while I was charging and the charger smoked. Here is a pic of the damage. The replacement pieces are easy to source. Problem is I'm working without a schematic and I can't identify the resistor values. Here...
  4. J

    best way to supplement with human power?

    Hi Folks I have just build a new bike using a HS3540 and a 40 amp controller. It has a thumb throttle a CA and it works fine. Previous to this build I had a Bionx system. I really like they way it added power based on how hard I pushed the pedal. I could easily controller power and make a...
  5. J

    problems with my charger- Mega infinity

    Hi Maybe someone has some ideas on what is wrong with my charger. It worked fine last time i used it in the fall. It is a Megapower Infinity 930sr Anyway I am simply charging 2 lion cells 1s2p. I turn the charger on and the voltage just rises and then gives me a Output Voltage too High error...
  6. J

    Battery placement recommendation please

    Have a look at my new e-bike frame. It has a great suspension fork. (FOX) I would like to carry 48v 20ah battery or batteries. I am not sure of placement. I really don't like seat post, as all the weight is in the rear. The triangle is small. Maybe saddle? But i don't want the front wheel to...
  7. J

    suitable load to discharge 36v Li-ion

    Hi I have built a Li-ion 9.6 ah 36v pack and i would like to discharge it and time the process to see its capacity. Any ideas for a suitable load that would draw 1 or 2 amps? Txs
  8. J

    Motor recommendation

    Hi folks I currently ride a Bionx system that I have enjoyed immensely. It is time to upgrade. here are my requirements. 1) I think I want to stick to 26", rear wheel drive with 135mm dropouts. 2) I want to be able to cruise at 40-45kmh (25-28 mph) 3) I want it to be lightweight I have built a...
  9. J

    How do I hook up the sensor leads?

    I hope someone can help as i have been playing around with this far too long. I have a megapower balancer/charger. The balancer has a master and slave connector. Each connector has 7 leads. The first lead is black, the last lead is red. So to charge 6 cells in series you place the negative...
  10. J

    Bionx controller options?

    Probably near impossible, but has anyone been able to run a Bionx wheel with something other than the Bionx controller that is built into the battery box? Just hoping.....
  11. J

    Help: Anderson connector alternative?

    Hi Is there any low cost easily available alternatives to Anderson connectors. I think Anderson are great put i don't want to spend the money on the crimping tool. I have been crimping them as best I can, but it sucks. So..what else is out there? BTW I'm up in Canada so my options may be...
  12. J

    new kit Ezee or Megamotion?

    Looking for a new kit. I have narrowed it down to the megamotion 350 shown here http://ca.itselectric.ca/MegaMotion_hub_motor_kit_p/kit-megamotion.htm or the ezee system shown here. http://www.ebikes.ca/store/store_ezee.php Without the battery the megamotion is a bit cheaper. Anyone have any...
  13. J

    Balancing 6p1s Li-Ion packs

    How folks I am a totally newbie and I am having a bit of trouble finding my way around. Whenever i come a cross a thread quite often the pics are missing . Anyways here is my problem. I have made 10 li-ion packs. They are each 6p1s. I want them all to be the same exact voltage. Is there a device...
  14. J

    Bionx Battery puzzle.

    I have successfully done a cell transplant on my Bionx 36v Li-ion. I have opened the case and clipped the positive battery lead and ran it outside of the case to a connector. That way i can connect and disconnest the internal cells. I run my new pack of cells thru the charge port. So far so...
  15. J

    Charging with a power supply?

    Hi I am experimenting with the 18650v cells from a makita pack. I am attempting to charge a pair of 18650 cells. I am using a very good power supply to accomplish this. I set the voltage to 4.2 volts and I am monitoring the current. I can adjust the current so I initially set it to 1 amp. I read...
  16. J

    Replacing Bionx Li-ION cells

    Hi I have a 36v Li-Ion Bionx battery IC2. The cells are getting tired, so i plan on replacing them with cells of the same type found in the Makita 18v 3AH packs. I can either get new packs or slightly used ones from Doctorbass. I am thinking this is a relatively straightforward project, however...
  17. J

    looking for a DIY LIfePo4 setup

    I would really like to build my own LIFEpo4 36v 20ah battery/BMS combo and charger. (for an E-Bike) I've done quite a bit of reading and i understand that LiFE PO 4 is currently the safest chemistry. I have searched the web quite a bit for DIY plans, but have had no luck. I am looking for...
  18. J

    Winter electric help

    Hi I currently have a Bionix 350 that i built up. It was my second build. The first was a 250 that i used in the winter for a short time. They use a lot of salt where i live and it got cruddy pretty fast. So bad, that i had an opportunity to trade the 250 for a 350, so i got rid of it. At any...
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