methods wrote:I have already brought it up with him twice. He speaks perfect English so it must be that he does not understand the situation. I think if anyone wants to tell him again they need to just make the change, take a picture, notate the picture, and send him that picture. I already linked him to the entire CA Manual where it is described ad nauseum and he still sent mine with the incorrect wiring.
methods wrote:That has been my experience. Any time I get a guy on the horn who speaks good English things just get worse. I would rather make smoke signals to Keywin than speak clearly to Sunny Chen over at 9C.
bearing wrote:Ok, then I don't have any ideas.
flexy wrote:i'm running 72V lifpo4 so does get up to 82V off the charge. I asked for LVC of 50V , I also asked for 200A peak but it's max was around 80A before modifying the shunt!
John in CR wrote:flexy wrote:i'm running 72V lifpo4 so does get up to 82V off the charge. I asked for LVC of 50V , I also asked for 200A peak but it's max was around 80A before modifying the shunt!
The LVC is probably what is shooting you in the foot. Get with Leo to find out what resistor needs changing to the the LVC up over 60. Shoot for 60-65V. There's no capacity to speak of below 3V/cell with Lifepo4, so that should be fine. Try running your battery down to about 70V just to be sure that regen is actually activated. Do you have any other packs or cells so you can check the actual LVC?
200A...What motor?....Pushing what total load?
Also, file the ends and corners of the heat sink fins. Mine pulled a Freddy Kruger imitation on me. Thank goodness I just brushed it with my leg, so they weren't deep.
flexy wrote:John,you were right about the LVC affecting regen, my regen started to kick in around 65V, which is way too low, I'll see if lLeo has a solution.
Another quirk I found was when using the 3 speed switch , on the lowest setting the motor won't even start until the throttle has already been twisted 75%, this makes me think the bike is switched off until it suddenly jerks into motion.
At middle speeds I'm getting oscillations, the controller ramps up the power to 4KW then drops off to 1KW and repeats every 3 seconds.
Maybe this controller doesn't match my motor very well, the controller doesn't get very warm even when climbing a long steep hill (7KW continuous), but the motor gets quite hot.
flexy wrote:I have now tested it with zombiess throttle tamer, this has been a weird experience, the throttle tamer works great with my Lyen 18 fet.
But with the Greentime 36fet it's a different story, It can't seem to let the controller get to max speed (45mph rather than 50 freewheel).
When trying to ride the bike, the speed would oscillate and then cut out, I would have to restart the controller for it to work again.
I think the Greentime must have a similar circuit built in, hence the slow current ramp I get with my scooter, this must cause some conflict with the throttle tamer.
lionschasing wrote:tell me more please...have you got it working yet? i've got the same issue
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