Recent content by BlueSeas

Be wary of solder in high current connections. It can melt. I've seen battery cable connected to terminal lugs with solder pellets pull out when resistance somewhere caused them to heat up beyond the solder melting point. It's better to have a mechanical connections like hydraulic crimps...

What do you have room for? The Molycell probably takes more space. I had room to try Headway on my last build, but at 17Ah, at 72V, not going to win range wars. But it did fit. The answer is likely depends on space available and desired range. LFP is probably less costly, and should...

You are incredibly observant! Yes it is. And I've been too lazy to turn it around. I only have bike sized tire irons, and it was really difficult to get the moped tires on the rims. By the time I realized I screwed up the bike was built. Outside of pouring rain, I'm banking it doesn't...

Finally, a couple pics of the whole bike:

Here is how I configured the adjustability of the Sabvoton controller with the cycle analyst: I labeled the picture, probably won't label the eBike. The first switch is the three speed switch on the Sabvoton. It basically limits top speed. The top position is 100%, which allows field...

This build is officially on the road! Not probably "done", but are they ever? First, a couple miscellaneous items: 1) Bench tested on an electronic load for capacity a 4S1P string of the Headway 40152S Cells used in this build at 8.5A, 17A and 25.5A. The cells are rated at 17Ah, charged to...

Sure. Apple FaceTime OK? Or Skype. I'm ok tomorrow morning. Have a wine delivery between 9-10, but that won't take but a couple minutes. I'm also up pretty early.

I would suggest no more than 16A. You will need to get it rideable, and try max regen and read the results on the CA3 after your sure it's calibrated to your dual motor, dual shunt configuration.

I agree. It also makes it much easier to remove the axle and thus the wheel for a flat. Kinda unlikely with my moped tires, they are almost stiff enough to ride home without a tube! I'm a bit shamed...I Read the manual and found the same thing you did. Although they didn't suggest a...

Works for me. But I think I prefer the adjustment I made on the uppers.

That's what I was wondering. The 45 minute test ride was OK.

I tried the preload from end to end. It didn't help.

It would be possible to force that to happen. But fully extended would only hit the stops on one side, leaving some unequal force on the axle.

I just installed a new DNM-8 fork on an Enduro frame. It replaced a Zoom. I had a very difficult time removing the 20mm hub axle. That turned out to be because the shocks extend to slightly different lengths. On the installation, I aligned things starting at the axle. The resulting...

I didn't mean to imply 72V was better for hill climbing. Increasing the voltage only increases top speed. For hill climbing, if you maintain the same max speed uphill as a 48V system, the motor temp will be identical. But...who will do that? We all have heavy thumbs. So 72V is arguably...