I agree on soldering everything possible. I learned that from working in one of the most extreme environments on earth, and industrial metal plating facility. Corrosives, huge amp loads, steaming tanks of poison everywhere. A soldered and heat shrunk covered connector with the glue inside is forever. Connectors, they all fail. Some sooner, some later. sometimes they just resist A little bit and mess with things. when I connected my BMS I soldered each wire to the copper bus bars, no crimped connectors or potential poor Connection causing milivolt issues. Every crimp I do, I also solder.
it’s a beautiful house and a wonderful installation.
does it fulfill your needs at your home?
I have 40 years experience in the oil industrie on and off shore , comercial shipping and mega yachts and . only the best is just good enough .
My battery back up is just for emergencies and we can live witout the airco of coarse for a good 10 hours or so when we are conserving enery , see it more as an extended UPS.
WE have only LED lights and one big inverter deep freezer cooler and one clasic deep freezer, we can run our well pump and lifting pump to the tank at the roof and have so static water presure in case of emegergency, the cell phone amplifier and internet equipment stays also on .
Only the 220 V airconditioner and the high pressure hydro unit are shut off during an emergency situation and 2 other groups i could not split up due the house wiring configuration
I´m upgrading now with a 2KW inverter generator and chage over swith for the extended grid downs during huricanes, just for charging the bateries and having power to the preverent group of the house .
In case of an emergency i drain the batteries down to 20% it hurt their cycly life big time but i cycle perhaps ones a year in a emergency case and 4 times a year for maintenance till 50%.
Cycle life span is not an issue for me the high envirement temperature will aged them more , on everage 33 Celcius
It are Rolls AGM they can have a beat, after 8 years they are still doing well, however i do not know how well ,one of the coming upgrades is a battery monitor
And Thanks for your compliments