Lithium batteries for residential solar system?

I am curious about the viability of lithium batteries as a daily power source in an offgrid residential application. I admit I know very little about lithium batteries and for that reason have never considered them as an alternative when upgrading or replacing my battery bank. My limited understanding of lithium batteries is that they are expensive but on the plus side the amp hour capacity is 100% usable. Ie: you can discharge them completely and then recharge them fully without damage, like the battery in the iPad I am using. Correct me if I am wrong. I am interested in the battery life expectancy of lithium batteries in the application I mentioned. The batteries in my various Apple devices have never been changed yet, one iPad is 11 years old still going strong. Does anyone out there use lithium batteries as the power source in your offgrid home? Has anyone had experience with this? I would appreciate your input.

Rednek6966 said:

I am interested in the battery life expectancy of lithium batteries in the application I mentioned.

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Rednek6966 said:

The batteries in my various Apple devices have never been changed yet

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LiFePO4 is the lithium battery chemistry of choice for residential (and everything else) because its not one of the explody types like Li-ion and Li-polymer.
Your apple devices I believe are Li-ion (they're not LiFePO4) so any comparisons would be moot.

Rednek6966 said:

Does anyone out there use lithium batteries as the power source in your offgrid home?

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Have you tried the search function? There are thousands of threads about this...

Will Prowse's videos on YouTube are a huge help as well.

Lt.Dan said:

Will Prowse's videos on YouTube are a huge help as well.

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Most of these videos are organised on the sister-site.
Click on DIY Solar Blueprints (above)
Then click “more...” menu, select “Videos” menu item.

I also found this very helpful explanation on YouTube