David LaFerney
10 mW
I just finished assembling 2 ebay* kits
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersion&item=222117405994&view=all&tid=1775136905012
The homebuilt battery packs*** are 48v 20 amp and Should be about right for a 48V 1000W kit - I would think.
Anyway, both bikes fired up - all systems go according to the SW900 LCD and seemed to run quite nicely for a minute or so - then stopped. One gave error code 10 - "Communication Receiving problem." The other gave error code 6 - "Battery is undervoltage." Which is absolutely not correct - the battery was at 50 volts. I checked connections, disconnected and reconnected batteries - but still the same. The LCDs work but that is all - they still display the same error codes.
After sleeping on it, my unqualified guess is that the controllers are toast. I'm a big guy and the peak current may have just been too much for them. I reached out to the vendor - who in all fairness did respond right away with a form letter, and instructions to email a video so that they can try to help me. I'm guessing they need a video because their English is not much better than my Mandarin.
In any event, I'm willing to buy new controllers instead of installing OEM replacements if they're that lame anyway. Does anyone know if the Lyen controllers are still available? They seem to be highly regarded. I know I will lose the LCD bells and whistles, but I'm not fretting about that all that much. I want something that will be reliable even if it's just a motor, controller, and a throttle.
It would be awesome if it's actually something much simpler, but I'm not optimistic.
*I know (now) buying kits off of ebay was a mistake, but I started this before I even heard of endless sphere, and I read on a blog that it would be OK. I'm shocked to find that blogs publish things that may not be accurate. Live and learn.
**The batteries are 13s4p built out of Panasonic NCR18650 3400 MaH - according to the spec sheet delivers 4.875 amps continuous - so about 20 amps for the whole pack - about 1000 watts more or less.
***Since I have built what I believe are pretty decent batteries, If I get good controllers I'm only a hub motor away from making some pretty decent ebay kit bikes.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemVersion&item=222117405994&view=all&tid=1775136905012
The homebuilt battery packs*** are 48v 20 amp and Should be about right for a 48V 1000W kit - I would think.
Anyway, both bikes fired up - all systems go according to the SW900 LCD and seemed to run quite nicely for a minute or so - then stopped. One gave error code 10 - "Communication Receiving problem." The other gave error code 6 - "Battery is undervoltage." Which is absolutely not correct - the battery was at 50 volts. I checked connections, disconnected and reconnected batteries - but still the same. The LCDs work but that is all - they still display the same error codes.
After sleeping on it, my unqualified guess is that the controllers are toast. I'm a big guy and the peak current may have just been too much for them. I reached out to the vendor - who in all fairness did respond right away with a form letter, and instructions to email a video so that they can try to help me. I'm guessing they need a video because their English is not much better than my Mandarin.
In any event, I'm willing to buy new controllers instead of installing OEM replacements if they're that lame anyway. Does anyone know if the Lyen controllers are still available? They seem to be highly regarded. I know I will lose the LCD bells and whistles, but I'm not fretting about that all that much. I want something that will be reliable even if it's just a motor, controller, and a throttle.
It would be awesome if it's actually something much simpler, but I'm not optimistic.
*I know (now) buying kits off of ebay was a mistake, but I started this before I even heard of endless sphere, and I read on a blog that it would be OK. I'm shocked to find that blogs publish things that may not be accurate. Live and learn.
**The batteries are 13s4p built out of Panasonic NCR18650 3400 MaH - according to the spec sheet delivers 4.875 amps continuous - so about 20 amps for the whole pack - about 1000 watts more or less.
***Since I have built what I believe are pretty decent batteries, If I get good controllers I'm only a hub motor away from making some pretty decent ebay kit bikes.
