Can I leave my Foldable Solar Panel permanently connected to a battery?
Foldable Solar Panels are not designed for permanent installations. They are designed to be deployed and packed up. If you are interested in a permanent outdoor installation consider Rollable Solar Panels or Soltronix Crystalline Solar Panels. These panels can be permanently connected to your battery since the built-in blocking diode in the junction box blocks the draining of your battery. As with any permanent connection to a battery, safely clean the connection as needed (charge controller may be necessary).