A traditional battery charger simply keeps charging the battery at the output voltage of the charger (around 14.5v
for a 12v battery), and so if you leave it permanently connected it will over-charge the battery, and eventually
evaporate the electrolyte, or cause other fatal damage in a gel battery. Don't forget that a 12 volt battery is actually
13.2v (2.2v per cell).
Whereas a battery conditioner reduces it's output voltage to match with the battery's voltage as it rises to the
correct level, and can therefore be left permanently connected. Conditioners are sometimes referred to as "intelligent"
or "smart" or "trickle" chargers.
These top quality solar battery chargers can be left outdoor permanently or can operate through windows, allowing
them to be used as either permanent or temporary installations.
