Recent content by JanComputerman

Give up the power limit control and just set it to the max you require (mine set to 30amps on the grin 40amp controller) so the wires don't melt. It's more about what you use than what you want (everything?).

MrBill - here is a thought ... get a resistive throttle and connect it to the aux analog input and set it to be the speed limiting control. Now your throttle, if wired backwards, will become the inverse max speed control only and slow you down at any time, although not at a light to strong rate...

Justin (Dad👍) ... been riding 4289 miles, now in year three with nothing during a very rain filled first six months last year. Just got back into this forum to catch up last week and saw your post... I am running watt control with the throttle so it has the ebrake release kick ...did not try amp...

Wow plenty of reading here! Just flashed last week 3.14 from 3.12 on my CA3 and got the max speed 654 a couple of times and not once...not a big problem. I run a slim throttle (fantastic!) and current control (torque drive) instead of speed control which allows nice controllable takeoff...

Yeah the caps need to be electrically close to the controller output FETs for them to work. Plus keeping caps across the batteries will slowly drain the battery through cap leakage and if a cap failed ... Poof! But keep thinking!

Actually a much cleaner way is to make your series cable that connects two battery pack in series have the jumper between the packs go to a connector of any type with a jumper resistor soldered to the connector and wires. The resistor charges the controller caps so pick a proper value and power...

Sounds like some desecant is needed inside the hub, certainly plenty of room for some in there. I guess the real test is if mine is getting damaged because I have only been out in fog no rain. Might be good to check out my windings too since I am running the Grinfineon 40amp controller but...

For a hub that is so well sealed it seems counter intutive to drill holes to let water out that shouldn't be in it in the first place. I think after seeing how badly the magnets we're damaged that it may make a lot more sense to get some sealer over them to protect them better. Drilling holes...

Judging by the water marks it looks like it had completely submerged the bottom magnets. Fortunately the hall senses were on top! I hammered the rotor and stator apart, yeah it was stuck together, removed excess rusted magnetic particles, coated it with anticorosive black paint, put it back...

Talking about rotation drag ... the first eBike DD hub drive I built for a older friend took it to Florida for the winter and lived on his boat near the salty water. Yeah not a good idea for the bike but even worse for the almost water tight hub motor. By spring time the rear wheel wouldn't turn...

Sorry guys been off line for a while... The stock charger runs at like 4 amps and when it reaches 42 volts or so and the current starts to drop a little it goes green and disconnects so not much time balancing. I opened up the three pin charge connector and tapped into the red and black wires...

NOW The big concern is how far out of balance are all the cells and how well does the bms limit over voltage on a per cell group for the ten groups? May have to slow charge it for a while with something other than the four amp charger.

Right on the money there Fechter! yeah it was down to about 23 volts or lower so I applied an adjustable Power supply with a current limiting 120 volt 20 watt bulb in series to the charger wires externally and saw the voltage slowly coming up and then pulled the battery out and put it on the...

Did my down hill trip and shot a few of the Cycle Analyst ... Regen numbers for those who doubt it's usefulness... Yeah that's 221.2% and it was dropping as I took the photos from just the CA drain but crazy numbers.

Ok the hub took 5 clamps and a lot of hammer tapping with a plastic Hammer to get it together and it spins without doing anything funny like firing a phase now and then the slow itself down. Reinstalled it back into the bike today and the damn battery went dead over the winter after being...