“Tesla Powerwall comes with a 10-year warranty that guarantees at least 70% energy retention, but this is dependent on the unit being connected to the internet for firmware updates. The warranty covers the hardware and includes labor costs for service, and Tesla will repair or replace the unit at its discretion. Exclusions to the warranty include environmental damage like floods or fires, improper installation, or unauthorized repairs”
Hard to stay connected with a dead powerwall.
With Tesla’s ability to remotely control your property it seems to me that you do not actually OWN it. You will own nothing and be happy!