Recent content by harryS

You got one of these? Wow, I don't like the profile on the guy's bike,

If you've built packs, then you know it can take a long time to balance them, and it is unbalanced. Make sure your BMS is set to balance and let it charge for a day. I don't have a smart BMS so you have to RTFM to figure why it's maxing at 4.18, If they are all cells of the same make and...

Even at 4.18V, you should see more than 79 V if the battery is balanced. I suppose you can use your JK app to read out the cell voltages to see if they're balanced, Are all twenty banks at 3,95 volt? Or are a few at 4.18V and the charger has stopped with the rest below that value?

I also wear a knit cap in cold weather under the helmet, Sometimes over the billed cap,

I have a Giro helmet, known for their extra large sizes. I often wear a soft visored cap (no buttons on the top) to keep the setting sun out of my eyes later in the day, While I have never fallen on it, I suppose I should get a new helmet soon,

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...