MariusM

I believe you, but with LA that is dangerous and shortens the life of your equipment. Luckily it seems like most new installations are lithium.
In some case practicality might trump other considerations, but that doesn't make them untrue.
https://www.victronenergy.com/upload/documents/Quick-Install-Guide-MultiPlus-12V-24V-48V-3000VA-50A-EN_outlines.pdf

 

(Also posted on MyBroadband, but discussion is a bit slow)
I'm about to start down the rabbit hole...

My initial setup will be to beat loadshedding, but with the aim to include solar generation in the future.

I already have an inverter which I bought last year on an impulse. It's a Soltra GTB3000 3KW Plus, which appears to be an Infinity Solar 3K+ rebrand/clone. Not much information available for this unit, but it seemed decent for the R6k I paid for it, so will see.
With some searching I managed to find the user manual and software. It's still boxed, but I did test it briefly plugged into a wall outlet and was able to connect using the SolarPower software and the supplied USB cable.

I also ordered a Hubble AM-2 battery.

The plan is to install a new DB for essential load and move all lights and plug circuits over to it, except for: Aircon, Geyser, Washing Machines, Tumble Dryer, Dish Washer, Microwave, Ovens and Swimming Pool DB.
All the lights in my house are already LED.

I want to do most of the install myself and then have it checked and CoC'd by an electrician.
I had two electricians over to quote, but they didn't inspire much confidence and were rather expensive, I thought.

I do have a few questions and will also appreciate some comments, hence this thread.

This is what I plan to build (may not be perfectly to scale):