05-21-2020, 04:47 PM

So I've been going through and estimating all of our appliance usage, assuming everything is wired on the AC side through an inverter connected to the 12V batteries. I've been using this formula:

___ watts divided by 120 volts = amps

I ended up with an estimate of 33 or so, which works pretty well assuming I have 240aH of battery.

Now I am reading that this is only for the AC side of things - and that to determine how many amp hours that this will draw off of my batteries, I will need to multiply this number by 10! So now I am looking at 330 amp hours, which would necessitate something like 1000aH of battery capacity. This would probably blow both my financial and weight budgets.

Am I missing anything?

___ watts divided by 120 volts = amps

I ended up with an estimate of 33 or so, which works pretty well assuming I have 240aH of battery.

Now I am reading that this is only for the AC side of things - and that to determine how many amp hours that this will draw off of my batteries, I will need to multiply this number by 10! So now I am looking at 330 amp hours, which would necessitate something like 1000aH of battery capacity. This would probably blow both my financial and weight budgets.

Am I missing anything?

Current: 2013 Four Winds 31L + 2020 Honda CR-V LX AWD

History: 2003 Jayco Eagle 14SO Pop-up + 2002 Mitsubishi Montero Sport