We can very well charge a 12 V battery with an 24 V panel and a 12 / 24 V charger, even standard or PWM, it seems to me that it is the type of battery that determines the automatic switching.dede2002 wrote:So to use this panel it is necessary to use two batteries in series, unless you have a regulator mppt that converts the voltage to 12V, but in this case it will double the nominal amperage of the regulator relative to that of the panel.
In his case, a second charger, connected in parallel on the panel, to charge the 2 batteries independently is the simplest.
Normally these safeties, as well as the cut to avoid deep discharge are managed by the chargers, even the most basic.dede2002 wrote:I have the same installation at home, with a regulator 24V and two dissipative regulators that engage 14.4V and trigger to 13.5V (homemade) to avoid overcharging a battery