5 cu. ft. fridge too much for two 12V/390W batteries?

[Bowlegs868]

It would be good to get the voltage reading at the battery terminals and at the inverter terminals while under load.

just to be clear, the inverter terminals I'm checking would be at the input right? or output?

 

[Bob B]

just to be clear, the inverter terminals I'm checking would be at the input right? or output?

At the input .... the goal would be to compare the readings at the battery terminals to the input of the inverter under load.

 

[Bowlegs868]

At the input .... the goal would be to compare the readings at the battery terminals to the input of the inverter under load.

Ok, gotcha! thanks
I'll be doing that soon

 

[Jammoboy]

I have two 12V 390W batteries connected in series to a 24V 2000W inverter and a 60A charge controller.

If I try turning on my 5 cu. ft. fridge, my inverter will "trip" and start beeping. At least I think it's because of the inverter or maybe it's the charge controller? OR maybe I simply don't have enough batteries/power to withstand the starting draw of the fridge???

PS.... I usually have four wired in series parallel and that handles the fridge fine

The label at the back of the fridge states 115V / 1.5A

Would help to establish wattage of fridge. Mine needed 2800 watts to start but uses only 800 to run. So the inverter size could cause this. Thanks

 

[Bowlegs868]

Would help to establish wattage of fridge. Mine needed 2800 watts to start but uses only 800 to run. So the inverter size could cause this. Thanks

It turns out that the problem wasn't the batteries... it had to be the loose wire I noticed in the breaker box
that was the only thing that I knowingly fixed/changed... later on I tried turning on the fridge again (which, by the way, is about 173 Watts) and it worked just fine... that same panel that had the loose wire (which was causing what I believe to be arcing on the inside when there's a heavy enough load like the microwave), now seems to have an issue with the neutral busbar where it's "bonded" to ground!

 

[wmgeorge]

PS When someone says check the connections, that means all the connections and they all need to be tight.

 

[WYtreasure]

PS When someone says check the connections, that means all the connections and they all need to be tight.

I'll second wmgeorge, and even encourage double checking the connections, all of them.