UPG 250 amp hour agm batteries
I just finished up my residential refer install with inverter. I have two 75 amp hour batteries that will suffice for now. But this worked so great and I had so much fun with it, I started searching ...
Forum Discussion
It seems the OP is at least approaching the battery capacity resolution with an open mind, hopefully able to disregard some of the less than accurate information.
There is little information to prove that AGM batteries will last any longer than FLA batteries in a very dynamic situation like an RV, where current draws are high relative to the capacities involved. Most of the anecdotal information I've read points to the FLA, larger plate batteries, like GC2 or larger deep cycle batteries garnering the longevity crown.
Most AGM batteries are not able to be installed with vents down, check the product installation specifications.
I've found that my AGM bank tolerates charging close to FLA charging, the principle limiting factor being high voltage settings for bulk phase and limiting any equalization phase to only occasional use. Not all AGM batteries are built the same so product-specific charge profiles are the best for individual brands.
Some of the newer residential refrigerators are getting very efficient with daily draws often below 1KWH. This brings them into the range of medium sized RV battery banks and there are a lot of attributes that make them superior to absorption fridges.
I had a thread up in this section of the Forum asking much of these same questions regarding running a 120v fridge with only small solar capacity and a medium sized battery capacity (<400 AH). I was told it wouldn't work by some and I should return the refrigerator. I am now running the small dorm fridge through a 1000w inverter using 320 AH of batteries and 230 w of solar. Yes, there will be times when harvest does not keep up with use but my findings, so far, are much the same same as Crosscheck, it can be done and is not as difficult as some surmise. If you have a generator to afford backup for cloudy/rainy weeks, it can work well.
There is little information to prove that AGM batteries will last any longer than FLA batteries in a very dynamic situation like an RV, where current draws are high relative to the capacities involved. Most of the anecdotal information I've read points to the FLA, larger plate batteries, like GC2 or larger deep cycle batteries garnering the longevity crown.
Most AGM batteries are not able to be installed with vents down, check the product installation specifications.
I've found that my AGM bank tolerates charging close to FLA charging, the principle limiting factor being high voltage settings for bulk phase and limiting any equalization phase to only occasional use. Not all AGM batteries are built the same so product-specific charge profiles are the best for individual brands.
Some of the newer residential refrigerators are getting very efficient with daily draws often below 1KWH. This brings them into the range of medium sized RV battery banks and there are a lot of attributes that make them superior to absorption fridges.
I had a thread up in this section of the Forum asking much of these same questions regarding running a 120v fridge with only small solar capacity and a medium sized battery capacity (<400 AH). I was told it wouldn't work by some and I should return the refrigerator. I am now running the small dorm fridge through a 1000w inverter using 320 AH of batteries and 230 w of solar. Yes, there will be times when harvest does not keep up with use but my findings, so far, are much the same same as Crosscheck, it can be done and is not as difficult as some surmise. If you have a generator to afford backup for cloudy/rainy weeks, it can work well.
