Recent content by harryS

Nice work on analyzing the problem. I don;t own an Engwe, but it appears the failure is common enough that they published a video on torque sensor replacement. And it appears they will send out spares under warranty, Is that how you got your spare? Well, I would get another one while I could...

Pulling a controller out of its case is just a waste of time, Pretty hard to identify what is needed from markings on the circuit board, Have you looked at the Smartmotion website to see if they still sell your controller? If not, then you need to look at the case and see if it carries a...

I just had a new roof installed, and the guy replaced my skylights with new ones that have shutters, powered by a lithium pack with a solar charger. I don't like it, but they're a major brand (Velux). I will ask my insurance agent anyway,

You will have to identify which display and controller is causing all this pain, Some displays have a setting to go back to factory resets. Others do not, but if you have the manual, then you know what the defaults were.

You're saying the S866 plugs in, powers up, and the bike runs? Questions. 1. What runs? Do both throttle and pedal assist work? 2. Does the display display the speed when the bike runs 3, When you change pedal assist levels, do you feel a difference? 4. Are both displays S866 If both displays...

My observation is the the UK is not friendly to ebikes unless they are low power, under 250W, with speed limit restrictions on the throttle if present. Here in the states, it's quite different. You may want to learn the local rules in your area. Here is a UK forum with a discussion spanning...

Good to hear you figured it out and got it running, Yes, you have to get those controllers started.

I probably have done close to 20 conversions. I had not owned a new bike since my 1975 Gitane 12 speed. In 2015, I bought a new GT hybrid, and saw an ebike on display. I bought one later for my wife, and after seeing how it was put together, I converted an old 1990 Trek. I kicked off my...

Welcome to the forum. Not too many conversion posts on this site, so always glad to hear about them. There's a forum section for DIY that's mostly empty, We'd all be happy to see pics of your projects.

Dual controllers. One throttle with +5V from one controller. Common ground. Throttle signal shared? Should work. Make sure each controller runs separately first. You already did that with the single throttle?

I use an Atorch DL24 load tester to test battery capacity and also to discharge them to a specific voltage. In this picture, I was discharging this 42V cell array to 2.5V so it could be taken to a recycler, I use the Atorch to set my spare batteries down to 3.4V/cell. That's about 30% state...

I've never purchased thru Alibaba. Instead, I purchase off aliexpress. I have filed several disputes with Aliexpress and always had a good outcome. I know the two companies are related, so perhaps the dispute process is similar,

Very good work on your part, but beyond the scope of most members here. The Germans on the Bosch forums will probably love to see your data,

Illinois just reaffirmed the 3 class definitions to be treated like bicycles, Anything over 28 mph is a moped (license and registration time). Class 3 is pedal assist only, This was apparent in the original law passed about 8-10 years ago, but dealers were trying to sell throttle limited to 20...

While I got used to the original 3 speed PAS in my Trek conversion, it was, face it pretty crude, after I started riding torque assist on the TSDZ2, I had a five speed controller with a smoother pedal assist although it's still cadence based. I switched. While the original 36V pack still slides...