Hi again,

Solar is not my full forte but I will try to answer you.

I am of the opinion that a solar panel should be enough to charge the battery over an 8 hour daylight period. This does not take into account, dark days, cloud cover etc. The output of the panel will decrease dramatically during cloudy days.

Also the regulator plays a big role in battery management, there are 2 main types and 2 main prices one cheaper than the other. Mind you the cheaper device will not perform as well as the more expensive one.

We have a 120W solar panel connected to 2 110AH batteries, the panel is not big enough to fully charge the batteries on a bright day, so we use the generator or plug in at a caravan park every 3rd day.

Hope this is a start for you, as I said this is beyond my expertise.

Cheers

Ok... Here goes...


Depending on you power usage...
- MY rule of thumb...

If All you have for charging is Solar....

Low load..
for every 100Ah of Battery.. I would go 100-150w of solar... maybe a few LED light's.. charging of mobile phone and maybe some laptop charging... [You only use about 20-25Ah of Battery]

For a Mid lvl load...
- for every 100Ah of Battery.. I would go 200-300w of solar....

For Heavy Load's 400w Plus for every 100Ah..


Personally for me as I'm an extreme user of battery's..
I have 300Ah @ 24v and have 1400w of solar Now.. Have a spot for another panel.. to get me 1600w's of solar...

I hope this gives you an idea....

Juergen

I think the OP has given up.

Do you run LifePo4 for batteries Juergen ???


Cheers John