Hi everybody. I apologize for the extremely-beginner question here, but I have received conflicting information from my local solar dealers about a solar fridge for my family's off-grid camp and was hoping for an extra opinion.
The solar fridge lists its power draw 2 ways for a 24V system:
524Wh / 24 hrs
24Ah / 24 hrs
I'm looking to use 2 x LiFePO4 batteries, each of which is 12V 100Ah, although the battery capacity is listed at 1280W. For calculation purposes lets just round it down to 1200W.
Hooking them up in series to achieve the necessary 24V would continue to give me the same 100Ah but I should now have 2400W, correct? (24V x 100Ah). One dealer told me I would have 2400W and another told me only the voltage increases but nothing else, giving me 24V but still with 1200W. Clearly this is a huge fundamental discrepancy and I'm shocked that professionals would differ on this information. Anyway, it has me second guessing things so just looking for clarity.
With 2400W, I should have 2400 / 524 = 4.5 days runtime (assuming zero solar charge).
With 1200W, I have half that.
Using the Ah for calculation instead of Wh, I have 100 / 24 = 4.2 days runtime (assuming zero solar charge). Makes no sense to me that the dealer's calculations could show 4.2 days runtime using one unit, but 2.3 days using another.
Any help here would be much appreciated!
The solar fridge lists its power draw 2 ways for a 24V system:
524Wh / 24 hrs
24Ah / 24 hrs
I'm looking to use 2 x LiFePO4 batteries, each of which is 12V 100Ah, although the battery capacity is listed at 1280W. For calculation purposes lets just round it down to 1200W.
Hooking them up in series to achieve the necessary 24V would continue to give me the same 100Ah but I should now have 2400W, correct? (24V x 100Ah). One dealer told me I would have 2400W and another told me only the voltage increases but nothing else, giving me 24V but still with 1200W. Clearly this is a huge fundamental discrepancy and I'm shocked that professionals would differ on this information. Anyway, it has me second guessing things so just looking for clarity.
With 2400W, I should have 2400 / 524 = 4.5 days runtime (assuming zero solar charge).
With 1200W, I have half that.
Using the Ah for calculation instead of Wh, I have 100 / 24 = 4.2 days runtime (assuming zero solar charge). Makes no sense to me that the dealer's calculations could show 4.2 days runtime using one unit, but 2.3 days using another.
Any help here would be much appreciated!