Hi all,
So I just snagged myself what I'm hoping was a good bargain. I got a used 2016 Focus Aventura Impulse 2.0 with no charger and a 'faulty' battery for $475 AUD.
The bike is nice enough just on it's own with decent brakes, group set and cheap but functional front suspension. Considering they what they were asking for it, I'm pretty happy with it.
Anyway, I checked the battery and total voltage was around 22V. Sure enough all cells were equally at 2.2V (it's a 10S pack). So I chucked it on a 2A 42V charger outside and brought it up slowly. No heat, or other charging issues so far...it's still charging now.
In order to charge I had to bypass the normal charge port/wires which go into the BMS as these would not accept a charge, and go direct to the cells main discharge leads.
However it still doesn't seem to want to interface with the bike, allow it to turn on, or give me any indication of charge state via the LED's.
I did a bunch of research and can't find much info out there. The closest I found was this troubleshooting guide:
http://newwheel.net/questions/pages/viewpage.action?pageId=5570561
But without an original charger I can't do much.
I also tried unplugging all connectors on the BMS to let it completely turn off, but that still didn't help. The charge connector has 4 pins with 3 wires and a resistor on it. I'm not sure what the 3rd, white wire does and I traced the resistor from the black (ground) back to the unused pin, so back to the charger....not sure why/what that does.
The bottom of the battery has 3 pins not associated with the main discharge leads. I'm assuming these are some sort of logic connection to the BMS for charge state. I tried hooking the charger directly to the main pos/neg terminals on the bike and managed to get it to turn on, however it would not display charge state and it would not power the motor.
So, does anyone have any suggestions on either how I can troubleshoot/reset the BMS, or how I can bypass it or the logic circuit in the bike?
I'm wondering if the BMS is toast, and how on earth I would find a replacement. I hate BMS...I never like to use them as they have caused me nothing but trouble.
Cheers
So I just snagged myself what I'm hoping was a good bargain. I got a used 2016 Focus Aventura Impulse 2.0 with no charger and a 'faulty' battery for $475 AUD.
The bike is nice enough just on it's own with decent brakes, group set and cheap but functional front suspension. Considering they what they were asking for it, I'm pretty happy with it.
Anyway, I checked the battery and total voltage was around 22V. Sure enough all cells were equally at 2.2V (it's a 10S pack). So I chucked it on a 2A 42V charger outside and brought it up slowly. No heat, or other charging issues so far...it's still charging now.
In order to charge I had to bypass the normal charge port/wires which go into the BMS as these would not accept a charge, and go direct to the cells main discharge leads.
However it still doesn't seem to want to interface with the bike, allow it to turn on, or give me any indication of charge state via the LED's.
I did a bunch of research and can't find much info out there. The closest I found was this troubleshooting guide:
http://newwheel.net/questions/pages/viewpage.action?pageId=5570561
But without an original charger I can't do much.
I also tried unplugging all connectors on the BMS to let it completely turn off, but that still didn't help. The charge connector has 4 pins with 3 wires and a resistor on it. I'm not sure what the 3rd, white wire does and I traced the resistor from the black (ground) back to the unused pin, so back to the charger....not sure why/what that does.
The bottom of the battery has 3 pins not associated with the main discharge leads. I'm assuming these are some sort of logic connection to the BMS for charge state. I tried hooking the charger directly to the main pos/neg terminals on the bike and managed to get it to turn on, however it would not display charge state and it would not power the motor.
So, does anyone have any suggestions on either how I can troubleshoot/reset the BMS, or how I can bypass it or the logic circuit in the bike?
I'm wondering if the BMS is toast, and how on earth I would find a replacement. I hate BMS...I never like to use them as they have caused me nothing but trouble.
Cheers