Hi,
I have a question regarding the best voltage --12 or 24-- for charging batteries on dull days. It occurs to me that batteries are charged with current for any given voltage and one should optimise for current supply. My system is currently 24 volt with panels and batteries in series but all parts of the system, chargers and inverter, are happy with either 12 or 24 volts. Would it be better to go to a 12 volt setup to double the current or would it make no difference? I understand that this would also double the load current, but that is within one's control to an extent. Weather isn't. Rain every day for the last 4 months in Wales has made off-grid living a challenge to say the least.
I have a question regarding the best voltage --12 or 24-- for charging batteries on dull days. It occurs to me that batteries are charged with current for any given voltage and one should optimise for current supply. My system is currently 24 volt with panels and batteries in series but all parts of the system, chargers and inverter, are happy with either 12 or 24 volts. Would it be better to go to a 12 volt setup to double the current or would it make no difference? I understand that this would also double the load current, but that is within one's control to an extent. Weather isn't. Rain every day for the last 4 months in Wales has made off-grid living a challenge to say the least.