Hey Eric .
Im not even sure what kind of chemistry the Tesla batteries are using , so I have no idea about charging them or there parameters would be . Looks like you are on your own with that setup , learning curves are so much fun.
Im not sure what you mean be corrosion? Please tell my your concerns on that.
As for an inverter , i can help you with that . I have a Vanner Brutus 2400 watt , it will start a dead horse. It has 90 amp surge , into 120 volts , that just over 10000 watts! Make sure you use big short cables to the inverter.
I looked and owned many inverters and find your best bet is an american built Vanner , they are built for the military and trucks and are simple but bullet prove .

Good luck , keep us posted on your progress

Regards

I saw you are using LiFeO4 batteries. I got my hands on some tesla Model S batteries and I am thinking of using them for my house Batteries. 1 tesla module is 5.3KwH and has a nominal voltage of 22.2V Do you know of any inverters that will work with that? I can put two modules together and get 44.4V nominal, but my issue is that the low voltage cutoff is too high to use all the cell power. I can make my own packs, but the tesla cells are really compact. Each module weighs 50 lbs and has the ability to be water cooled. My other concern is corrosion, how do you deal with that? I have a 16KBTU AC, how big of an inverter do I need to start that thing? My calcs say it will take 2000 watts to run it, but may take 6000-8000 to start it.

Any help is much appreciated. If you want pics of the modules let me know and I can send them to you.

Thanks
ERic