Recent content by bnoooogers

What have been the biggest changes to ebikes in the past 5 years? Back in 2017 the Leaf 1500W was all the rage, there was a bunch of drama about the Luna Cycles guy, and battery building was a pain in the ass (its not still a pain in the ass, is it??). I built a bike 5 years ago then stopped...

The flood lights you linked would be good for off-road use, but not so much for street riding. Flood lights have a wide beam and will blind and annoy all the drivers/riders in front of you. The LED strings are good but you have to wire them correctly. They come as a roll of 100 parallel strings...

I just mean a regular razor blade like https://877askxtreme.com/wp-content/uploads/2015/04/single-edged-razor-blade.jpg After switching a few plugs like this, I have now realized this method only really works on the looser ones. I actually ended up cutting a tight plug apart to avoid damaging...

In case anybody ever looks at this thread again, I found a great tool is the side of a razor blade. The fat 'handle' part fits exactly into the JST pin slots. Rock back and forth and the pins slide out with only a little aggravation.

Maybe I've misinterpreted the specs of these controllers - I thought a line about 0-5V input for regen meant that they were variable regen. Or is true variable regen only possible with FOC or other more advanced control strategies?

Not one?

I'm looking to run a leaf 1500W system with variable regen. Budget is ~$150. I already have a 14s lipo battery. I know of some Kelly options http://kellycontroller.com/kbs48121x55a24-48v-mini-brushless-dc-controller-p-528.html?osCsid=000febmt44qi17ph6mhu68sl00 The sabvoton site seems to be...

Just want to say thanks to craigsj for the best examination of hybrid batteries that I've seen on these forums. It's an interesting problem and I appreciate your thorough approach!

Hi ivi_3 I came to these forums the exact same way (MMM blog) and had the exact same dilemma regarding BBSxx. After months of dallying (I had just graduated and didn't have a job, thus had no money to be decisive), I finally came to the conclusion that what made most sense for a cheap commuter...

Hello and welcome (feels weird saying that because I'm new too). From what I've seen, this forum is mostly about DIY ebikes and kits, with an emphasis on high-power stuff over commuting (though there are plenty of commuters here too). If you want advice about pre-built bikes, I'd check out...

You can look at the physics of an ebike to understand why regen braking, regardless of technology, will never return a high % of range. If regen braking was perfect, the most amount of energy it could recover is the kinetic energy of the bike + rider. KE = 1/2 * mass * velocity^2 Assuming a...

Unfortunate consequence of the tiny ebike market. We aren't the intended consumer of these chargers. They are designed for recharging drones out in the field (hence 12V supply and compact size). Flyers want fast charging too, and high power levels means lots of waste heat, which means lots of...

I recognize that you're looking for a DIY solution, but in case you (or others) don't know, there is a commercial product that does this, and is a programmable balance charger that charges through the balance wires with no need to disconnect series wiring. Up to 8A per cell. It is called the...

I'll take that as validation of my physics and math and condemnation of my post formatting :wink: This is an important addition, though: Repeated or sustained braking events, without ample time to cool between them, is what causes fade.

The term you want to google is 'brake fade' (the loss of braking power due to heat). I think the main variable is the material composition of the brake pads (and rotor size, but you're already maxed out). If your brakes were underpowered, they wouldn't be by much. 203mm rotors are mostly used...