Endless Sphere

In case anyone is interested, thanks to Metallover's post and link to the logic analyzer from Amazon, I was able to decode the battery signal from the "Omega" port on a Greenworks 60V battery. I recreated the signal using an Arduino and hooked up the Greenworks Brushless leaf blower using a 18S1P A1...

Metallover, I tried your code on an Arduino and hooked it up to my 60 Greenworks brushless blower and it didn't work. I wonder if the 60V batteries need different signalling. I did hook up an LED to the Arduino pin 6 and could see slight flickering so I'm pretty sure the code uploaded and is running...

Hey uula, any update on this? I'm having the same issue. I bought a Greenworks brushless 60V blower. I built a battery for it and if I only connect to the + and - terminals on the tool, it powers up for about 3 seconds, then shuts off. If I wait a bit, it will power up for 3 seconds again, then shut...

For those that are running a chain tensioner...what are you using? My Surly Singleator and most of the chain tensioners I know about are limited to a 23 or 24 tooth max size. I'll be interested to hear what you find. I had to hack together a tensioner. I'm using an old XT rear derailleur but I exte...

.the only advantage I can see with going to 72v is a little quicker throttle response. Am I missing anything...what do you guys think? Thank You The advantage to 72v or even higher is higher RPMs. Then you use lower gearing for equivalent speed. This translates to less stress on the entire drive tr...

Bafang BBS02 and BBSHD are pretty quiet. BBSO2 more so than BBSHD.

Pretty sure it's a JST 2.54 mm pitch connector, but don't quote me on that. You may want to measure to be sure. I moved on from the cyclone controller to a PhaseRunner with a Cycle Analyst. It was a lot more money but absolutely worth it to me. My use case is a single speed, very quiet commuter bike...

Sophia Yang wrote: ↑

Dec 23 2019 4:29am

We are now have AM1000 in stock at Los Angeles, US.
Warehouse Add: Fullfillment center 1150 S. Milliken Ave. Ontaria, CA 91761 9093907788-7725

Can you please clarify your phone number? You have some extra digits in there: 9093907788-7725

Anybody have any discharge graphs for these cells?

DogDipstick wrote: ↑

Oct 29 2019 9:55am

Pulls 2000~4000 watts from a 20s 15.5 Ah battery, all day continuously until its ded.

What kind of voltage sag do you see at 2000 and 4000 watts?

What sort of "big amps" are we talking here? Well, if we take your current setup of 60V, 45 amps continuous, you are looking at 2700 watts. For the Astro motors, most people are running the Castle Creations HV controllers like the Talon, which only go up to 50.4 volts. So to get your equivalent 270...

I would love to see someone successfully do some type of noise reduction enclosure on an Astro build. Then I could copy their design. My Astro build has been sitting, collecting dust since I have been playing with my BBSHD. I want go back to it and do a noise enclosure as well, but just no time. The...

First, I can't run full throttle as long as I'd like without generating an alarming amount of engine heat. Second, I'd like the engine to fit into the triangle rather than hang below the bike, for obvious reasons. Third, the BBSHD is needlessly heavy. Like, it's just bizarre to me that Bafang didn'...

This is a good thread for reference: viewtopic.php?f=4&t=91775

Thinking about just turning the existing hub into a fixed since it's basically what it is right now. I'll open it up and take a look. Maybe I'll throw some JB Weld in there or a bent nail to make sure it's permanently locked up.

Can you point me to an example of a fixed hub?

My current set-up is a BBSHD with a PhaseRunner on 75 Volts nominal, around 36 amps. The volts drop a little under load, so I'm seeing about 2500 watts peak. My regular commute involves climbing a 32 degree dirt trail. So the bike is geared very low for climbing. It is single speed with a 30T at the...

Thanks, Avner. That's perfect since I'm already running a Phaserunner! I'm going to give that a try. The issue came up because the freehub on my rear wheel has locked up, so now the chain is getting spun by the rear-wheel instead of freewheeling. I figured the left side drive folks have already figu...

For those of you running a left side drive, given that there is no free-wheel on that side, how do you prevent the chain from derailing given that when you are not applying throttle, the spinning of the rear wheel is actually driving the chain forward on the front motor sprocket. Typically, all the ...

Very nice. So do you run the two packs in series? Do you use any kind of diode to isolate them in case the BMS trips on one of the batteries?

devo1223 wrote: ↑

Apr 09 2019 8:25pm

Stinky, wouldn't it just be easier to get a TSDZ2?

That's a fair point. I guess I should read through that thread. Don't know much about that kit.

I probably should test ride some newer consumer E-Bikes just to see how good a modern PAS implementation is. Maybe my opinion would change. If anyone in the South Bay area is interested in trading some riding time... :) The newer torque sensing PAS systems are very smooth. The harder you work, the ...

Nice work, Bob. This would be the ultimate pedal assist if we could figure how to integrate a torque sensor.

Nice find! What's that black section between the core and the output shaft? Planetary gearbox? Answering my own question. If I expand out the listing, it mentions "Gear ratio: 6:1", so that must be a gearbox. I wonder if it would be easy to remove the gear reduction and that blue cover on the back ...

Nice find! What's that black section between the core and the output shaft? Planetary gearbox?