Voltset Solar Panel Kit 20W 12V Solar Battery Trickle Charger Maintainer Waterproof Solar Panel + Upgrade Charge Controller + Adjustable Mount Bracket for Boat RV Motorcycle Marine

20Watt 12V Solar Panel Battery Charger Kit Waterproof IP67 Solar Battery Trickle Charger Maintainer with MPPT Solar Charge Controller Extension Cable Battery Clips O-Ring Terminal and Adjustable Mount Bracket for Car Boat RV Trailer Motorcycle Marine Camping Voltset 20w 12v solar battery charger can fully protect the 12v battery and prevent it from over-charge over-discharge over-voltage over-current over-load short circuit reverse polarity and over-temperature not for charging empty batteries.. Upgraded 10A MPPT charge controller 100% waterproof can be completely immersed in water and does not consume power at night. This solar trickle charger 12v is equipped with a 360° adjustable mounting bracket that can be used to position the panel at any angle and easily mount the stand on the ground wall and roof etc. O-ring cable can be used as an option for a long-term connection to the car battery suitable for situations where frequent disassemb