If your batteries are fully charged then all energy from the solar panel goes into storage. Solar batteries can help to even out the energy that is produced by your solar panels and make sure that you have a consistent supply of power, even when it is cloudy or at night.
What Happens to Solar Power When Batteries are Full: A Comprehensive Guide - Solar Panel Installation, Mounting, Settings, and Repair. When the batteries in a solar power system are fully charged, any excess electricity generated by the solar panels is usually sent back into the grid if the system is grid-tied.
When solar batteries are full, the battery has used up all its capacity, which means no more solar energy from the panels can be stored. In this case, overcharging has the potential to damage the battery, which is when the inverter and the charge controller begin to play their parts. They handle the excess energy in the following ways:
Ah, solar batteries. These little powerhouses are the unsung heroes of the solar power system. They swoop in to store solar energy during the day and release it when the sun takes its leave at night. Each battery is like a reservoir holding a day’s harvest of sunlight to be used as needed.
When solar panels are not connected to a battery, they continue to produce electricity. However, that electricity is only useful if it’s being used to power appliances or electronic devices at the time. If nobody is using any of the energy produced by the solar panels, all of the electrons created by photonuclear cells disappear.
Once you charge it to maximum capacity, the battery will hold its charge for up to one year after a full charge. Power doesn’t get more convenient or reliable. Several options are available to check the charge level of a battery within a solar energy system.