Sorry, might be a stupid question, I have literally no idea about bikes!
What I'm looking to do is figure out whether there are any modern-ish ebike motors on the market that I could swap my current motor with (I'm assuming I'd be swapping all the other innards to fit that motor too, so dw about battery compatibility and the like). All I know about the current Motor is that it's a 250W Panasonic motor from around 2011. I asked the mechanic at my bike shop whether I could just toss one of those Bafang conversion kits on the bike but he said the way that my pedals sit within the motor would be incompatible with that and I'd need to get an actual ebike motor, not a conversion motor.
So now I'm trying to find information on current Panasonic motors and what sort of frames they need to fit, but I'm having a hard time because I have no idea how to even call this kind of spacing on the frame. Does anyone have an idea on what to call it/describe it as? Or is is a proprietary thing that I'd need a welder to rework? (Totally an option if push comes to shove, I know a guy)
Some more pictures from as many angles as I could get into (should I be getting measurements of any of these?):
spoiler
Necroing this, but you might want to do a cell repack, I bet your motor is weak from bad batteries.
These guys should be able to do your batteries even if your brand isn't listed. I looked into them before I bought my current ebike, just in case the manufacturer dropped support for my batteries.
https://www.fthpower.com/