Check out this range of solar battery chargers / regulators. For the full OzCharge range please visit www.ozcharge.au.

Oz Charge 12V 10Amp Solar Charger - Flush or Surface Mount 170 Watts Max

Model: OC-SR-10

Oz Charge 12V 10Amp Solar Charger - Flush or Surface Mount 170 Watts Max
Oz Charge 12V 30Amp Solar Charger - Flush or Surface Mount 510 Watts Max

Model: OC-SR-30

Oz Charge 12V 30Amp Solar Charger - Flush or Surface Mount 510 Watts Max