Solar Panel Size To Battery Bank Size
When you pro's talk, having solar panels sized to battery amp size, are you referring to total battery capacity or the 50% useable battery capacity? I am working on my Solar system, I have a total hou...
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For me, my planning is how much solar power I can get in the 5-6 hours of HIGH SUN to get my batteries back to at least their 90% charge state so I can make it through the next day/night run off my batteries.
My camping off the batteries is planned to not drop my batteries below 50% charge by 8AM the next morning when I can either start recharging them by running my 2KW generator to use the on-board smart mode charging from my converter/charger unit or depend on the solar panels being in high sun all day long.
To recharge my battery bank I see over 50AMP of DC charge at the initial re-charge state that starts tapering off to around 8AMPs of DC charge after an hour or so. Then i need to provide the 8AMPS charge state for an additional 2-3 hours to get my batteries back up to their 90% charge state. If I can't get to the 90% charge state I will not be able to make it through the night off my battery banks. My goal is to never drop below the 50% charge state over night.
It will take alot of solar panels if no generator is planned to be used. Consider a 120WATT Solar setup will only produce 5-6AMPS of DC Charge in high sun.
This is my game plan at any rate when camping off the power grid. Generator first for the short time running and then switch to solar for the long term charging. What ever it takes to get to 90% charge or more before the high sun goes away.
Roy Ken
My camping off the batteries is planned to not drop my batteries below 50% charge by 8AM the next morning when I can either start recharging them by running my 2KW generator to use the on-board smart mode charging from my converter/charger unit or depend on the solar panels being in high sun all day long.
To recharge my battery bank I see over 50AMP of DC charge at the initial re-charge state that starts tapering off to around 8AMPs of DC charge after an hour or so. Then i need to provide the 8AMPS charge state for an additional 2-3 hours to get my batteries back up to their 90% charge state. If I can't get to the 90% charge state I will not be able to make it through the night off my battery banks. My goal is to never drop below the 50% charge state over night.
It will take alot of solar panels if no generator is planned to be used. Consider a 120WATT Solar setup will only produce 5-6AMPS of DC Charge in high sun.
This is my game plan at any rate when camping off the power grid. Generator first for the short time running and then switch to solar for the long term charging. What ever it takes to get to 90% charge or more before the high sun goes away.
Roy Ken
