icecube57 wrote:I read somewhere that someone tried to use regen on the GM controller and the motor ripped out of the forks. Not a nice thing to do.
Hyena wrote:icecube57 wrote:I read somewhere that someone tried to use regen on the GM controller and the motor ripped out of the forks. Not a nice thing to do.
Yeah that was me. I don't recommend adding the experience to the list of things to do before you die. If you do, best put it last on the list...
Mine was non-regen braking - same deal as regen but was dissipating the energy into a coil of wire rather than back into the batteries. I was using it in the absence of front brakes because I couldnt fit discs to the GM and my forks had no v brake mounts. Seeing as you've already sorted front brakes I'd highly recommend against it - not worth the risk on front hub motors for such minimal regen gains.
Re: the watts up meter, remember they're only rated to 60v and you'll promptly kill it if you try and put higher voltage into it.
icecube57 wrote:Yesterday was a fun day.. Today just had a host of problems. I had some serious wiring issues. The connectors I were temporarily using kept burning up. They were fine under light load but when I went for more than 20 secs WOT the power would cut out... Not completely. The pack voltage lights still worked but there was such a volt drop at the connectors the controller LVC kicked in under load. I was going to try for a long distance drive but with those problems I didnt even make it out my apartment complex. I worked the past hour re doing all the wiring. Seems to be working fine now. Even under stall. I also took the time to tune my gears. They were way out of check. The gear number shown wasnt the actual gear that it was in. I finally got everything lined up correctly. Everything shifting correctly according to the numbers on the shifter. The front derailer alignment was way off. It kept causing the chain to pop off. I keep seeing why this bike was discounted. I did a bike only ride just now. Shifting smoothly. Got a new pump. Pumped my tires up to 60psi. Ride wasnt harsh. The suspension took alot out of stiffness you get in hard tail bikes with that high psi setups. I tweaked my seatpost rack. It kept swiveling even when tighen down all the way. I ended up taking my old handlebar grip and putting around the seat post and then put the seat post rack on top of that and tightened it down. No more swivel. Moved the controller from the along the top tube and attached it with heavy duty zip ties to the seatpost rack. It doesnt interefer with the mounting of my battery bag on the rack. My battery is sitting at 60v floating charge on the charger. 58v after 1hr sitting off charger. After applying a load it drops to 54 v. I havent even been able to do a 5% discharge yet. With all the work Ive done today tommorrow is defintely a good test day. I feel it. Im still waiting on my Watts Up meter.... Still trying to figure out how to mount it too.
Im also about to get these torque arms on ebay. http://cgi.ebay.com/E-Bike-Torque-Arm-E ... .m20.l1116
Anyone ever use them?
icecube57 wrote:Today I did a dusk/night ride. I did manage to drain my pack today. I got about 16AH out of a 48v 20AH pack. I did WOT throttle 80% of the time. I pedaled during the start up until I couldnt match the motor speed and let rode the throttle rest of the time. I got about 23 m. The motor was mildly warm. The bms on the battery cut me off.I could technically keep pulling out of the pack at 5-10A but i couldnt stay in the butter zone. Someone please tell me is the 16AH I got out of my pack reasonable or do i need to do some sniffing to find the dead rat. I was drawing 30A most of the time. I wasnt babying the throttle. My light worked but they were lack luster. Im going to find a supplementary LED light system on EBAY I like they way the projected. For them to be so cheap i like that pure white blinding light. They had a wide angle mid throw even light beam The two I have a focused far throwing beam like a flash light. I also had a failed anderson. Bad crimp. I fixed it with my kit bag in the middle of my ride. Thats all i got for now.