Yikes. $2000. I know they have a great reputation but my latest fridge tries are 5CF for $200 and 7.5CF for $216.99
That’s why mine are 4P2P8 strings is a ridiculous number of batteries to try and keep balanced
I’m betting that will work.It has started the fridge purely off battery once. I'll try the capacitor since it's the $25 solution but if that doesn't work I will replace the inverter.
On a side note, I have 4 batteries connected in series/parallel. I just checked and the one series pair is unbalanced with the other so I will top the lower one up. If I am looking at 14.4V and charging till the current draw drops to 2 amps, can I leave the two batteries connected and set my power supply to 28.8V? Less stuff to disconnect. The two batteries in each series pair are within .02V of each other.
2s2p pack is built but sun isn't cooperating. Each battery in a series pair is .01V from the other, but the 2 pairs are .6V from each other. I want to know if I can charge the lower voltage series pair using my programmable power supply set to 28.8V and wait for the current draw to drop to 2 amps.
Batteries balanced to within .1V of each other.
A day of sun producing about 4 hours at 600 watts. Batteries pretty much charged. And as soon as the fridge compressor tried to start at about 17:50 (getting darker here, down to less than 100 watts from the panels), the inverter cuts out.
So I will look forward to trying the big ass capacitor next June once the roads are clear of snow and we can get back to the camp. Assuming the clouds of black flies don't obscure too much sun, I hope to see a fridge start in the dark
But I will bring a 3000 watt inverter too, just in case.
After what seemed like a prominsing start, the problem is back. So to eliminate the batteries, I connected my meter with the hold function to the 2,0 cables connection to the inverter and turned on the fridge with solar panels disconnected. The inverter alarmed, but I never saw a dip in the voltage from the batteries with the meter set to hold at the minimum voltage. No drop at all, indicating (I think) that the inverter is not reacting to slump in the voltage from the batteries, but something else. Is it possible my 245V 1500W/3000W surge inverter needs to be replaced with a larger unit? I know it's been suggested already, and this seems to confirm that even though it should be able to handle it, it's not. If so, does going to a 3000W unit the appropriate size? Everything in solar seems to indicate taking whatever the specs say and double it