Since I'm not stuck on the Iota, a Victron Smart IP22, IP43, IP67 12/30 or 12/50 - are spec'd to 14.7v max.
Quick review of battery products...
LiTime - max V = 14.6
BattleBorn = 14.7
WattCycle = 14.8
Bioenno = 14.6
There doesn't seem to be a cleaner/smarter way to do this other than ye olde Charger -> Batteries -> Load(s) if the goal is to have no power interruption when AC mains drops/burps.??
Then consider what's alive, presenting a load, in the rack, for how long.? A certain popular/familiar radio draws ~10A at 50W output.? Another popular piece of gear for linking... CDM-1250, ~8A @ 20-25w.? Controller bits, AllStar node, networking... another 5A perhaps.? 25A... for what run cycle?? Our longest on-air time is an intermittent 15-20 minutes of weekly net check-in, then continuous playout of AR Newsline.??
Ought to be able to cover that with 2x 100AH batteries and charger, and recover reasonably soon.? That's essentially what I've got at home, plus 400w of solar, running for the past 6-8 months.? The whole shack - HF, VHF/UHF rigs, and local repeater seem to be doing pretty well and is 'idling' at 14.38 v - can't find my ammeter to re-check the idle vs active draws.
