Recent content by BMboomer

Hi Jeff I've got 4 e-bikes in my stable at the moment, all 36v. I have my original eBay 500w direct drive. A 250w legal step through, off the shelf Nomad ( local brand now out of business) I got that one for my wife for 1/2 price when they were selling off their stock. That's a rear...

The motor finally arrived, & it wasn't going to go in the Giant Trance frame as the bottom floating suspension pivot was right in the way, so I fitted it into the Raceline hardtail which almost seemed like it was made for it. I found the motor was a bit underwhelming at first, as I'm used to...

Hi from Australia, haven't posted for a long time, but still into electric bikes, & my original cheap eBay direct drive hub bike has been improved over the years, & is still going strong. Now for my latest project. I ordered a TSDZ2 kit, months ago just before the Covid 19 restrictions kicked...

Just got those parts I needed thanks to Tonyontopofabighill. Really grateful for his help, and a great bloke to deal with. It's so helpful to have a resource like this to help these interesting projects along. Thanks to all.

Hi folks this is my first post on this thread. I have acquired a non working City version of this bike. There was no battery at all. Just a big open space between the side fairings where it would go, and the little hinged flap that should be just in front of the seat post was broken off...

Got a workable solution to that one now, although I'm still interested in trying to gain an understanding of the more elegant ways that you guys work around that particular snag. Looking back over this thread, some of the stuff that I didn't even understand at all in the earlier posts is...

Yes my further testing, and messing about, all seems to be to be having results that are very much like what would be expected, from your very helpful explanation of how this PAS works. In short my experiments with this are very hit & miss, and not very satisfactory. What seems to be working to...

Do you think that this voltage divider that you're talking about might be those 3 resistors, that are in series, that have vcc voltage at one end, and 13.4v at the other end, just to the left of that empty space that's alongside the 2 big resistors? Changing the subject to the PAS. I've tried...

VCC is what gets fed with battery voltage through the brown wire returning from the ignition switch. Pretty much everything on the circuit board except for the Mosfets seems to get fed from there, including the battery gauge LED's. That brown wire is where I have reduced the voltage with my...

Yes it was explained to me, and that was what I was trying to find with my DMM when I came up with this Idea. I am only very basic with electronics, and I wasn't really sure what dnmun was on about. I don't really know how to recognise the resistor divider specially on this SMD board. The...

Had a much bigger ride today with the resistors switched in, about 12km with virtually no pedaling. Got the 12s laptop batteries down from fully charged to about 45.5v idle. The bike went really well. plenty of power the whole time, and nothing overly hot when I got back. Motor was barely even...

Done it! I had another go at checking voltage after the resistor when it was going, and it was much lower than expected. So I tried temporarily paralleling what I had at hand, and just by trail and error, I found that a 180ohm one with the 270 that I already had seemed very promising...

Going home with the resistor switched out using the 10s battery was fine. Just like normal. When I worked out what resistor I was going to go for yesterday, I tried 1kohm ones in parallel at first, because that was the lowest value I had in my box of bits. They were only little quarter watt...

I've been messing about with my controller again at the weekend, trying to find a way to get it to work with the fully charged 12s laptop cell battery, without triggering the high voltage cut out, and I've made a bit of progress. Sort of. I was trying to test parts of it with my DMM just to see...

That's really intetesting. I bet the lights go dim in your street when you fire up your charge station. Can you series the 5v lines on one with the 12v lines on another, assuming you've done that earth/negative isolating thing ?