Recent content by thundercamel

Sorry for the absence; raising kids takes up a lot of time :) Right before the winter my brother in law dropped off the PHAT-E bike (CE Moto) I made for him two years prior. It was an experiment at the time to see if he'd like an ebike over the 2-stroke bike he was using to commute to work...

I love railroad history. I wonder if there are any abandoned lines around you that you could go railbiking down. All the ones here are either torn up or converted to trails. The trails are at least nice, but most of them are just bits and pieces instead of connecting the entire line that used...

You're testing them with all 21 of the small gauge wires connected to a pack? Some BMS units also need the large battery negative terminal connected as well before they start acting normally.

Good to hear! I need to do this next, along with an experiment I keep forgetting to try. I bought a bag of winds screens for lavalier microphones. Figured I could use the open cell foam as earplugs to some degree.

Converting your own bike like this is absolutely the most fun, like you said. Enjoy it!

I've had the same problem. This is one of the arguments grin has for the gmac motor. Skip to 50 seconds. cnaucA7qVGs

Do you know the exact model of cells in there? Different cells are rated to deliver different amounts of current. For 18650 size cells, 3.4 Amp hours per cell falls under the high capacity end of the spectrum, which usually can deliver fewer amps than the high power category. I'd say 30 amp...

For tires I've used: 1. Various cheap tires that came with bikes or motor kits 2. 2x Sunlite K831 Alpha Bite 26x1.95" and 26x2.15" 3. 2x Schwalbe Marathon Cross 700x38c 4. 1x Schwalbe Super Moto-X 20x2.4" 5. 1x Schwalbe Smart Sam 20x2.35" 6. 1x Schwalbe Big Ben 26x2.15" 7. 3x Schwalbe Marathon...

Does this video get you what you need to know? Also depending on your motor wind (Kv or RPM/volt), your top speed will be back EMF aka voltage limited at some point, regardless of controller settings. B0F6x8V0NZQ

On my ebikeling controller that looks similar to that, I was instructed to connect my EBS pad to ground, and it works! You'll probably have to test on an actual ride down a hill with the battery half full. There's a delay after pulling the brake lever before regen kicks in, and regen isn't...

Is that smooth because you're back to sine wave or because it has more power? (or something else)

That looks like the same controller that APL uses, but his thread linked here which is a little cheaper.

I have no experience with these kind of bikes, but what do you think about this? I know you displayed two hub motors, and this is a mid-drive. RvFD0Q909ZY ot8rxRnd2DQ

I was just going to say, the high voltage is a rare variable to think about, but each pack should have had it's own BMS and neither should have seen the full series voltage. Hopefully both chargers had floating/isolated DC output voltage...

Yes. A BMS that is user programable, which usually means bluetooth but I also have a USB cable and Windows program for my JBD smart BMS's. Still won't save someone from poor construction techniques, and I will not rely on just the cell heat shrink wrapping to prevent shorts between each series...