Recent content by harryS

I bought a cheap $20 battery powered electric saw from Menards, It has to be oiled manually before each cut. My $50 AC powered Skilsaw had an oiler.

Mr Coffee. Make 4 cups every morning, Some days, I forget to drink any. How about Dylan's Motor Psycho Nightnare "Well, he threw a Reader's Digest At my head and I did run, I did a somersault As I seen him get his gun And crashed through the window At a hundred miles an hour, And landed fully...

My brother and I started riding motorcycles as teens. We were unlicensed and uninsured. One of our riding buddies was run over and killed. I cringe when I recall my own near misses. Quit riding more than 50 years ago. Oddly enough, my drivers license still says I am motorcycle rated. Anyway, the...

Hopefully, stompandgo's trick will work on the Aventon and it will take a charge, What is probably happening is that the battery self discharged over those six months and now is too low for the charger to recharge it, When you plug it in with battery on bike, the charger is what turns the bike...

Ask Qiroll about the maximum voltage that his controller can support, A 9S lithium will be 27V minimim and 36.8V max and commercially unavailable. It's just an odd voltage, A 10S will run 30V to 42V and is popular for power tools and ebikes. The Ryobi 40V tool batteries are actually 10S and I...

Riding between 43-50F. That's like us. If it's sunny and roads are dry, my wife (a good sport) and I will go out when it's 45 degrees. You'll lose between 10-20% of your range at 8C compared to 25CF, Even more at 0 C. Ride your bike in warm weather, get a feel for your range, and plan...

Was this posted earlier? RIP to both of these guys.

A few months ago, I unplugged the BBS02 C961 display to check some program settings, I noticed the pins were bent in the IT4 cable. Unplugged the battery so I could straighten them, but forgot about the charged capacitors. Kapow! In hindsight, should have unplugged the IT4 or used a plastic...

Two choices in controller design determine whether over volting is possible. The first is a an over voltage voltage detection circuit, Most often used in midmotors. NEver seen one in a hub motor controller, The second is component choice. Maximum charge voltages on 48V and 36V batteries are...

2000W motor in rear? That's mechanically safe. In front, not very safe at all as the forks will break off and you face plant. In the rear, the wheel will just spin if it gets loose, tear out the wires. and might jam the and skid, but you probably won't land on your face. Torque arm is...

I still had a swollen leg two weeks after a crash. Saw doc. Got checked for clots. Passed. Got better on my own, Five years ago, an insurance underwriting exam found (not visible) blood in urine. Second test was clear, but I saw a urologist anyway and entered his house of pain. Yow!. Nothing...

Cheap Xmas deco. I had found the bike in trash a while ago, Threw it away afterwards.

The 48V ebike controller is 48V at 50% charge, and will operate between 40V a(controller cutoff) and 54.6V (full charge) for li-ion, A 48V LFP is 51.2V nominal and charges up to 58V. Most hubmotor controllers will work that high as they don't usually have high voltage cutoffs. The RAD...

RIght now, you can get LFP cells and have the fire safety. Not too expensive, but a big weight penalty, I'm not sure solid state is available as bare cells. I can buy sodium cells, but the 18650 size are pretty low capacity, about 37% of a good Li-on. New 21700's are 60% of Li-ion, but are...

Welcome. I'm old enough to have built crystal radios and study vacuum tubes in my youth, Still young enough to build/ride DIY ebikes in my retirement.