Never let the lead acid battery go below 12v, you will damage it.
Never let the lead acid battery go below 12v, you will damage it.
Never let the lead acid battery go below 12v, you will damage it.
Did I mention.......
You can get a voltage meter and see what is going on and gently shut things down when the volts get to 12.0
There is also a voltage cutout you can add that will stop power when it has reached 12v. That's to protect the battery only.