I'm not too optimistic on that. I was thinking direct to pack.
I have been putting more thought into this, and checked the OCV of my Sunpower12v flex panel.
It is 21.0v exactly.
I have used a 5S powertool battery plenty of times with my cccvboosters to charge my 10S esk8 batteries in the parks i ride to. I have used them while rolling too.
The 21VOC rating of my 12v nominal panel means it cannot overcharge a 5S pack, unless there is perhaps an extended edge of cloud event on a cold day, but I am in Florida.
The 5S pack between booster and panel means that a shadow falling over the panel does not cause booster input voltage to tank and not recover once shadow passes.
I have 5 JP30P1's, but these are far overkill for this task. I will transfer these into a rigid 5s1p, and harvest its 2.0ah lishen cells, and make a 5s1p for this.. but not today.
The idea is 21VOC panel-> Ideal diode-->5s1p--->inline wattmeter---->CCCV booster set to 41.80v----> inline wattmeter-10S battery.
No bulky MPPT controller, no huge CCCV booster required, and the 5s1p battery by itself could power the cccv booster with no solar panel attached, at least for a little bit.
I could test this today, but with a 6S battery.
Too many other things on project list though. Its just a fun thought experiment..... What if I had to charge my Esk8 with my 100 watt solar panel. I am pretty sure this would work and be fairly compact and transportable.
I know it works without the 5s1p battery inbetween, it is just that passing shadow knock 82 watts down to 50ish watts maximum and I have to twiddle the current control potentiometer to get the 82 watts back.
