Here we go again!
No, actually here's some really good practical information. It looks like he's using a lipo charger to charge his batteries without BMS, so a bit easier for him. If your heart was set on solar charging and you don't have a bike yet, that would probably be a better way to go rather than buying a ready-made battery. or you could open up a standard battery and split the 10 cell leads into two groups of 5 to charge with a lipo charger that has a 12V supply voltage.
Another way is to add a separate variable voltage SMTP charger set to 42.0V to charge a standard 36V ebike battery.
The arduino thing is good, but you can get most of that info except the data logging from a standard wattmeter that costs about £8. Some SMTP chargers have those functions built in.
Have a look at the rest of his channel. He's done many interesting projects including a scratch built ebike system.
No, actually here's some really good practical information. It looks like he's using a lipo charger to charge his batteries without BMS, so a bit easier for him. If your heart was set on solar charging and you don't have a bike yet, that would probably be a better way to go rather than buying a ready-made battery. or you could open up a standard battery and split the 10 cell leads into two groups of 5 to charge with a lipo charger that has a 12V supply voltage.
Another way is to add a separate variable voltage SMTP charger set to 42.0V to charge a standard 36V ebike battery.
The arduino thing is good, but you can get most of that info except the data logging from a standard wattmeter that costs about £8. Some SMTP chargers have those functions built in.
Have a look at the rest of his channel. He's done many interesting projects including a scratch built ebike system.