HOW TO RECOVER VRLA GEL TYPE BATTERY

[MotjraM]

Good Day! I would like to ask for your opinion if my 12V 100AH VRLA Gel type battery can recover to his charge voltage. Here is the problem everyday I charge my solar battery as usual and I saw it on the SCC that the voltage go to 13.3V or more without load. When the sun go down and no more charging on the battery it drops the voltage to 11.93V everyday at that exact voltage drop. Is it my battery already damage or cannot be recover?..Thanks for the Help

 

[sunshine_eggo]

When it drops to 11.93V after removal of charge, are there any loads of any kind on the battery?

 

[time2roll]

13.3 seems low. May need to get it closer to max specification for a couple hours at least.
Was the battery ever run flat dead? (under 9 volts)

 

[MotjraM]

When it drops to 11.93V after removal of charge, are there any loads of any kind on the battery?

Hi..Yes after no sun or no more charge it drops directly to 11.93 and no load for now because I try to charge it, hoping to recover to it's correct fully charge voltage..

 

[MotjraM]

13.3 seems low. May need to get it closer to max specification for a couple hours at least.
Was the battery ever run flat dead? (under 9 volts)

the lowest voltage drop is 10.5V nothing happened to reach 9V

 

[sunshine_eggo]

Depending on the type, you should be charging to 14.0-14.8V.