That's where I am leaning, electronics wear out just like anything else. People tend to wait until complete failure before replacing electronics. I worked in Network Systems maintenance and fully believe in "End of Life" use for just about any item with electronic pieces or moving parts rather than "wait until it breaks" maintenance.
I'm not familiar with PD products or multiple battery RV setups. Do you have to have a specific converter/inverter for use with series wired (multiple 6 volt) or parallel wired (multiple 12 volt) battery systems?
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