Andy schrieb:

Thanks. That tells me I should expect to replace the batteries at
least every 10 years but I found no informatoion on cost or whether it
was approved owner maintenance.

No. It tells you that you should expect a lifetime of at least 10 years
or 1500 cycles.

Todays cost for a replacement is around 15k, nobody knows what it will
be in 10 years.

Stefan