Volvo XC90 support battery failure

Volvo XC90 stop/start failure warning. Diagnostic test showed the main battery was good but the support battery had failed. Video shows the diagnostic testing and replacement of the support battery.

[@tch1978]

How much cost you that baterry? Need to buy one ,my PAS don’t work

[@mickjohnsgarageservices1955]

Check your local supplier for costs