Connecting Solar Panel Directly To Load

Connecting a solar panel to a 12 volt battery is not a hard thing to do.

Connecting solar panel directly to load.

When the load exceeds what the panel can harvest the battery makes up the difference. A charge controller is basically an appliance that regulates or stabilizes the voltage produced by the solar panel the direction of current and prevents overcharging. The rule of thumb when connecting solar panels directly to a battery is never connect more than c 10 watts where c is the capacity of your battery. This is necessary because the current produced by the sun my vary depending on the intensity of the sunshine.

For example a 110ah battery should never be connected to a panel more than 11w without a solar controller and if you are using a solar controller you do not need a blocking diode. They can be wired in parallel. Wiring the battery to the charge controller. The liquid in the battery made bubbling sounds and boiled freely the hood was open and no danger of a spark.

Dc fuse box attached to the load terminals of a charge controller. Limited current amps rating lvd low voltage disconnect and it s connected to the battery via a mosfet fuse. This is why you can t connect your solar panel directly to your battery. The load terminals on most charge controllers has both.

As long as the solar pv panel can supply the load the battery will not be depleted. On the other hand if our two solar panels have both different wattage and different voltage then parallel connection is not possible since the panel with the lowest voltage would behave like a load and would begin to absorb current instead of producing it with the. If we have two solar panels with the same voltage but different wattage there is no problem. Exceeded for minutes to hours i used to connect a 60w solar panel to my car battery every few months and let it charge to equalize it i don t recall the peak voltage but it went over 15 5 for hours.