Hello,
I'd like to start by saying its been a while since I last posted, so if I've forgotten any important rules on where/how to post please don't hesitate to remind me.
I've recently picked up a Powabyke electric bicycle - model unknown.#
https://drive.google.com/file/d/11FX3RHnrYbn4WtIkfaOp8y7_aRVBgSAR/view?usp=sharing
I have reason to believe it is a Powabyke Commuter, though I have no way to be certain.
The battery is 36V, and the seller claimed the motor is 500w, though I quickly realised they had no clue what they were talking about and this must surely have a 200w motor in like the other Powabyke Commuters.
The bike came with no charger, so after taking the battery apart, drawing up a wiring diagram and finding out which of the two types of electrical connections was the charger, I left it to charge overnight - no problems here.
The next day I attached the battery to the bicycle and flicked the switch, only to realised that there was a key that the seller had lost which was required for the ignition switch. I decided on cutting out the ignition altogether and have it permanently connected, as the battery itself had its own on/off switch which i thought would be enough for now. I then planned to cut the wires before the ignition switch and have them connect to each other.
See below for the wiring on the rear of the ignition switch:
https://drive.google.com/file/d/1PEten0HdfpkotVQ7mpqoswFfmCeN0fN3/view?usp=sharing
After spending some hours looking for documentation/a wiring diagram for the K3602 motor controller on the bicycle, I failed to find anything remotely helpful. I decided to take it into my own hands and make a few assumptions. I first assumed that the red and brown were obviously the 36v power, and that I should just connect these directly, and secondly that the yellow and blue were just a digital signal to alert the controller that the ignition was in the 'ON' state. Again, I had no wiring diagram, so was only using intuition.
Having no other leads on how to go about this, I went forward on connecting those wires, like so:
https://drive.google.com/file/d/1xGplslkdJo7zIoHGsLolHgfgtCfoSEMv/view?usp=sharing
(Red going straight to brown, and blue going straight to yellow - I know the insulation tape looks awful here but it was only to test whether this would work).
I reassembled the electronics on the frame and attached the battery. Making sure the fuse on the battery was fine, and the battery was still outputting at least 36v, I attached it, flicked the on switch, and hoped for the best.
To my frustration - nothing! Checked the battery output - 0v. Checked the fuse - blown. After replacing the fuse and trying again, history only repeated itself. Fuse after fuse was blowing after connecting it to the controller and flicking the switch. I then tried removing the blue and yellow wires altogether to see if that made a difference, which it did not.
The motor does not make any movement - though I know it is functional as bypassing the motor controller altogether does cause it to spin. I cannot find any documentation on this bicycle or its controller out there, though I have contacted Powabyke via email and am waiting for their response.
Does anybody have any clue why fuse after fuse keeps blowing? Did I make a stupid mistake while reconnecting the wires from the ignition switch? Any suggestions at all?
I am very grateful for any help anybody may be able to offer, so dont be shy!
Thank you for taking the time to read this and have a good day
I'd like to start by saying its been a while since I last posted, so if I've forgotten any important rules on where/how to post please don't hesitate to remind me.
I've recently picked up a Powabyke electric bicycle - model unknown.#
https://drive.google.com/file/d/11FX3RHnrYbn4WtIkfaOp8y7_aRVBgSAR/view?usp=sharing
I have reason to believe it is a Powabyke Commuter, though I have no way to be certain.
The battery is 36V, and the seller claimed the motor is 500w, though I quickly realised they had no clue what they were talking about and this must surely have a 200w motor in like the other Powabyke Commuters.
The bike came with no charger, so after taking the battery apart, drawing up a wiring diagram and finding out which of the two types of electrical connections was the charger, I left it to charge overnight - no problems here.
The next day I attached the battery to the bicycle and flicked the switch, only to realised that there was a key that the seller had lost which was required for the ignition switch. I decided on cutting out the ignition altogether and have it permanently connected, as the battery itself had its own on/off switch which i thought would be enough for now. I then planned to cut the wires before the ignition switch and have them connect to each other.
See below for the wiring on the rear of the ignition switch:
https://drive.google.com/file/d/1PEten0HdfpkotVQ7mpqoswFfmCeN0fN3/view?usp=sharing
After spending some hours looking for documentation/a wiring diagram for the K3602 motor controller on the bicycle, I failed to find anything remotely helpful. I decided to take it into my own hands and make a few assumptions. I first assumed that the red and brown were obviously the 36v power, and that I should just connect these directly, and secondly that the yellow and blue were just a digital signal to alert the controller that the ignition was in the 'ON' state. Again, I had no wiring diagram, so was only using intuition.
Having no other leads on how to go about this, I went forward on connecting those wires, like so:
https://drive.google.com/file/d/1xGplslkdJo7zIoHGsLolHgfgtCfoSEMv/view?usp=sharing
(Red going straight to brown, and blue going straight to yellow - I know the insulation tape looks awful here but it was only to test whether this would work).
I reassembled the electronics on the frame and attached the battery. Making sure the fuse on the battery was fine, and the battery was still outputting at least 36v, I attached it, flicked the on switch, and hoped for the best.
To my frustration - nothing! Checked the battery output - 0v. Checked the fuse - blown. After replacing the fuse and trying again, history only repeated itself. Fuse after fuse was blowing after connecting it to the controller and flicking the switch. I then tried removing the blue and yellow wires altogether to see if that made a difference, which it did not.
The motor does not make any movement - though I know it is functional as bypassing the motor controller altogether does cause it to spin. I cannot find any documentation on this bicycle or its controller out there, though I have contacted Powabyke via email and am waiting for their response.
Does anybody have any clue why fuse after fuse keeps blowing? Did I make a stupid mistake while reconnecting the wires from the ignition switch? Any suggestions at all?
I am very grateful for any help anybody may be able to offer, so dont be shy!
Thank you for taking the time to read this and have a good day