AGM batteries of 450Ah = 225Ah of usable Ah, so 225Ah x 24V = 5400Whr.I need to run a 115 watt hour fridge in a 450 ah 24 volt lead acid AGM vmaxtank battery; and, the two 355 watt PV rated in series at 110 v and 32 amps
Can this be possible?
I have yet to learn the watt hour relationship.
Thanks
So, 5400wh/115w = 46.9565217391h , and that doesn't sound reasonable.
This is unlikely. I don't think I want to see a freezer that uses 35kw a day But if that is accurate you are going to need at least 7-8kw of panels which is well beyond the LV2424.Also, I have 120v ,12 amp chest freezer.
1) Wh/Wh = Unit Hour, since fridge is rated at 115V and consumes 1A, so power is 115V x 1A = 115W, so in 1 hour the fridge uses 115Wh of power or in 24 Hr (1 day) it will be 2670Wh/Day. So as to how long the load will run in Hour will be about 46.95 Hour (5400/115) or 1.96 Days (5400/2760).To help with your original question. Watt hour is literally, Watts x hours.
A 115W fridge, run for 24 hours is 2760Wh.
Watts = Volts x Amps. The Fridge says it's 115V at 1A. So the Fridge is 115 Watts. NOT 115 Watt hours like you state in your first post.
So, your calculation of 5400Wh/115Wh is incorrect, because it should be 5400Wh / 2760Wh.
The same calculations can be made with your panels. 2 x 355W panels = 710W. Assume (guess) you will make power for 5 hours per day. 710W x 5h = 3550Wh. So you probably have enough to run your fridge. I would double check the specs on the freezer. But even if they are more reasonable(similar to the fridge) you will need a couple more panels.
How did you come up with this number? Its seems a little high.I need to run a 115 watt hour fridge