[zihotki]

Did they take into account aging and depreciation of the vehicle battery, which is crazy expensive? It makes negative sense to use v2h with current limited cycles batteries of cars. These batteries are optimized for charging speed and power density.

There are much more cheaper and better suited batteries for houses built using other chemistries, they are bigger and heavier and that's fine for a house as long as they live 10y+.

[dyauspitr]

Most of these batteries are on full warranty for 8-10 years. You should definitely make full use of it during that period.

[zihotki]

Read the fine print - there is usually a limitation on charging cycles. So battery can be out of warranty even if it's 3 years old but reached limit on charging cycles.

[dyauspitr]

It’s not. For my ford it is 8 years or 100,000 miles whichever comes first. It’s not about cycles.

[lostmsu]

How are cycles counted if the battery is not drained fully?

[ragebol]

Does that warranty still apply if the battery is used for other applications besides it's core function of powering the car?

[zihotki]

The car battery warranty is often for X years or Y cycles, whatever comes first.

[ragebol]

Yeah, I guessed so. Using it as a home battery with incur a lot more cycles I suppose. Although if the battery is large enough so that a day of powering a home only drains the battery eg. 10%, how does that factor into the cycle count? Is that somewhere in the small print maybe?

[dyauspitr]

I would look at your warranty, mine is 8 years or 100,000 miles. It doesn’t have a cycles stipulation.