Electrical question Amps, solar, ect

[t94bird]

My frigde just went out. I am thinking of putting in a small fridge and running it through the inverter. I wil be out in the wildfor a week (7 days) and need for it to be operational that long. Right now I have 2 6 volt golf cart batteries. I am thinking of adding 2 more and running the refrigerator off of those.

My question is am I going to be OK? How much amp hours will a 125 watt solar produce? Can it juice the batteries enough to run the fridge?


Thanks
B

 

[John From Detroit]

The answer to your questions depends on a lot of variables, including how much sun/shade you are parked in

125 watts is 10 amps at 12.5 volts (Now that was simple wasn't it) so if it's in full sunlight it can product 10 amp-hours per hour

your small fridge will need,,, Just about that much, when it is running, more when starting, none when not running (Ideally it should run 1/2 of the time)  I would think a 4 golf cart battery arringment (2 pair series parrallel) should hold it overnight but you may need the generator for a few hours every morning and evening

 

[Carl L]

That is going to depend.  Depend on hours of sunlight, altitude of sun in sky, cloud cover, and load ancilliary to the fridge.  Also the crud on the solar cells.  A 125 watt solar unit running at 80% will give you 8.3 amps per hour.  But it could also run at 60%.  Or 10%.  ?Qui?n sabe?

However, why are you running it thru an inverter?  Propane is going to be a lot more economical of batteries.  It uses DC only for the control board.