dogman wrote:I've seen much worse. Looks toasty but I bet the windings are ok. Solder up that wire, and it might work again unless you cooked off some halls, or the little board. If the board is roasted, you can just wire the halls without it.
Good call on the windings. They did look ok to me. Going to solder that hall up now!
How do I tell if the board is roasted?
dogman wrote:Hell, you didn't even combust the tie back strings completely, so it wasn't above 451 F.
lol and the Zip Ties were not melted, but they are broken on the backside.
dogman wrote:It's not easy to get a couple more wires into those 9c axles, unless you drill em and weaken the axle. I just put a temp sensor on the axle, tucked into the dropout slot. When I see 120F on the axle stub, it's going to be 170F or more inside. I have had good luck with motors lasting, if I keep the axle temp below 120F. But , there is a considerable time lag, so if climbing hard enough, you might need to adjust, and stop or do cooldown riding sooner.
What are you using for a temp probe? BBQ Meat Style?
dogman wrote:I've learned that carrying enough battery to take a long ride with high wattage is foolish. Why carry enough to cook off the motor? So I lightened up 5 ah, and tend to head for home in time now. 700wh is plenty, and the trails are close to my house so I can go home, cool off the motor, and go out again after a quick recharge.
Yes, this was a little much and I'd thought about not doing it, but Ypedal saw that I wasn't hill climbing and was out on the open roads at speeds
that assist in cooling. I didn't do a proper cool down. I was stupid!
dogman wrote:With that controller, I'd say go straight for the hubzilla or a 5400 or a scooter motor goood for 5000w.
The METHODS 7225 controller is perfect for that motor. 9C 2810 100v 30amp max .......once this motor winds out to max speed 50-60kph/30-40mph
it only draws 900-1200watts in most level terrain WOT anyways and is fairly efficient.
I like my method of learning.... you know.... Experiment - Observe - Take notes
I'm most positive that you do the same!
Thank you for your response Dogman! I greatly appreciated it!
Tommy L sends.... \\m//