Ideal for use on larger batteries to prevent power drain caused by radio memories, clocks, alarms and onboard computers.
The most common use is in cars that are not used often enough. Plug on to battery, rest "inside" vehicle on dash, close door and bonnet on cord + leave to do the work for you.
DON'T get conned into a little 1 watt or 1.5 watt panel -these are only good for Motocycles.
GREAT for boats BUT must be in view of sun and under cover (behind a window is best)
A quality product -built to last.