I am using four 100-watt solar panels to charge a 12-volt marine deep-cycle battery. That battery is used to charge other batteries (AAA- AA- C- D-cell, and 9 volt, as well as cell phone and other USB-charged batteries) using battery chargers that have a 12-volt input. But I also am powering various motion-sensing lights in the house from a sealed 12-volt lead-acid battery, and needed a way to charge IT. This little charger does the job beautifully. I can charge the small sealed 12-volt batteries (one in use and others as stand-by replacements) overnight, without having to use an inverter to run a separate battery charger for the smaller 12-vold sealed lead acid batteries. Kudos to the makers of this little charger!
Rating: [5 of 5 Stars!]