out what size charge controller for solar panels.??

Carl2591,

480 amp-hours only requires 288 watts to charge--but you need to replace the energy used each day, too. That is why a proper energy audit is one good place to start the design of the system.

I would not buy the 45 amp Tristar. Better to jump right to the 60 amp. That has to do with controller overhead. The 45 amp has 2, the 60 has 3.