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  1. HypnoToad

    Rear mech hanger snapped on my Ezee Forza

    Anyone know of where is can get a replacement? Thanks
  2. HypnoToad

    Where can I find a pinout of the eb306 Keywin boards?

    I'm almost done building one of these boards up with my own fets but I'm struggling to find info about this board online Most threads relate to programming or changing LVC resistors. On the PCB there are many connections, TA, TB, SP, SLA, P1, P2, etc. What do these all mean? where do I...
  3. HypnoToad

    Quick question about using your own FET's in an ecrazyman

    Quick question about using your own FET's in an ecrazyman controller: I've recently purchased one of the ecrazyman controllers, where I'm planning to use my own FET's. I ordered the 6 FET version as this is for a low power motor. However on the PCB there is room for 7 IC's. By the looks of...
  4. HypnoToad

    48v Hua Tong controller problem, throttle cuts out at 2.5v

    Ok, here's a photo of the label of the controller I'm using: Now I'm guessing 1.1-4.2v is the throttle voltages? The reason I ask is that my motor starts when the throttle is around 1.4v with quite a jerky start, and cuts out at 2.5v with a no load speed on the wheel of 18mph. Now with my...
  5. HypnoToad

    Bafang 24v 200W motor info needed

    I recently picked up a 200w bafang motor. Now, I was hoping it would have 6 holes for a disc rotor, but instead it has a thread each side of the hub. Very odd, does this mean that there is no way of adding a disc to this hub? Is there some sort of screw on adaptor available? I really need to...
  6. HypnoToad

    Infineon controller wiring

    I'm planning to replace my ezee controller in an Infineon controller, so I'm going to redo the wiring also. I was hoping to run a single 8 core cable to the handlebars, and was wondering if I could combine the grounds and +5v  for the halls and throttle for example. If this is possible then this...
  7. HypnoToad

    Can I mount 18650 batteries inside my handlebars?

    Has anyone done this? I was going to put 2 x 18650's down each end of the bar, and use them to power things like lights, etc. My handlebars are thin walled so there is enough room for the cells, and some insulation. Is there anything to worry about by doing this? I plan to wrap the cells in...
  8. HypnoToad

    Lower Voltage FET's, IRFB3077PBF vs FDP027N08B_F102 vs ???

    3077 spec: http://www.irf.com/product-info/datasheets/data/irfb3077pbf.pdf FDP027N08B spec: http://www.fairchildsemi.com/ds/FD/FDP027N08B.pdf As you can see, they are pretty similar specs, the FDP027N08B has a lower RDSon which I'm lead to believe is the most important thing to keep low...
  9. HypnoToad

    Have my FET's blown?

    My setup is an Ezee controller and motor, and I upgraded the caps in the controller to 100v caps as I'm using a 12s Li-ion battery pack and it's just over 50v when fully charged and the old caps were 50v. Quick question to anyone who has melted/killed a FET or two, does this sound familiar? My...
  10. HypnoToad

    What grease to I need for a geared motor?

    I've been having problems with my slightly overvolted Ezee so today I took apart the motor as I was not getting any movement from it after testing it with a known working controller, so I suspected the gearing. It turns out the gearing is ok but I was spinning the motor the wrong way, :oops...
  11. HypnoToad

    What motor is this and where can I get spares for it?

    Hi, this motor is fitted to an eZee Forza, UK spec, unknown year, but it had a pot for the throttle, which is believe was fitted to the earlier models. Also, I think think the UK models had a 250W motor. Here are a few pics; let me know if you need any close ups or any more photo's let me know...
  12. HypnoToad

    Quick question about calculating Wh/mile

    Ok, I've finally managed to get my bike going, and took it for its first proper run today. According to the cycle computer, I did around 10 miles. I've now recharged my battery and my charger is saying its managed to put around 2000 mAh into my battery. My batttery is 12s li ion, 44.4v or...
  13. HypnoToad

    How much voltage sag is too much?

    Right now I'm building a battery for an e-bike out of laptop batteries. Now I've been told that Li-ion cells are a bad choice for an ebike, and I need to have many in parallel in order to supply the needed current. I have the option to run 6 cells in series, or 12 if I really need to. I'm...
  14. HypnoToad

    Is anyone familiar with Ezee 36v bikes? Can I use a 44v batt

    Can I use a 44v battery without killing anything? I recently bought a used Ezee Forza and I feel a little out of depth as its my first e bike. I got the bike cheap as it had no battery, so I'm making my own out of used laptop battery packs. Now the laptop battery packs are 2p 4s, so if I keep...
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