Let say the battery is now 8.5 years old and dropped to 65%. I go claim one new battery and I have to renew another 9 years contract?

So no matter what or when, the moment you claim a new battery, the contract resets back to 9 years?

If yes then what's the point? It's not like warranty anymore, cause still need to continue paying for the battery

Meanwhile, if the battery becomes damaged due to circumstances not caused by the customer, Perodua will replace it at no additional cost. If the battery is still within the mandated leasing period, the customer may simply continue paying the remaining monthly instalments without renewing the contract. However, if the damage is determined to be the customer’s fault, a new nine-year leasing agreement will need to be signed.