Hey everyone! I've been living off-grid in rural Oregon since 2018, using a solar setup cobbled together from various components I found on the cheap. It's been working reasonably well for six years, although it's nothing fancy. My current setup includes 4 x 100W solar panels, an HQST charge controller, a couple of 12V AGM batteries in series, and a budget inverter. Lately, however, our batteries can barely hold a charge, and I'm forced to use the generator for most of our heavier appliances. I'm considering upgrading to a 24V system and replacing my failing batteries. I'm torn between getting two new 12V batteries (which I can only afford one at a time) or just jumping to 24V with a set of 24V batteries. I heard that keeping a larger capacity battery might help, even if I use a single 12V battery for a while. What do you all recommend? Should I stick with 12V, go to 24V, or even consider 48V?
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