Therefore never connect your solar panel directly to a battery it could be overcharge the battery and damage it.
How to charge 12 volt batteries with solar panels.
12v battery with solar panel.
In order to charge a 12 volt battery efficiently you ll need a solar panel that produces 12 volts.
Keep your 12 volt battery topped off with a 12v battery with solar panel charger in all seasons.
For an effective charge you need to make sure that the panel is directly facing the sun and no obstacles in between.
For example if your solar panel is 300w and you want to charge a 12v battery you d divide 300 by 12 to get 25 amps.
3 choose an mppt charge controller for better efficiency.
In this simple solar panel wiring tutorial we will show how to connect a solar panel to the solar charge controller battery and direct dc load according to the rating.
In that case you d get a charge controller rated for 30 amps.
If you re concerned about performance and speed invest in a 16 volt solar panel instead.
This panel will generate more power which will make a battery recharge faster.
Wiring pv panel to charge controller 12v battery 12vdc load.