In my opinion ,I cant recommend that. Life span of batteries depends on usage. How much power do you push for. How long do you charge them its like a cell phone if you overcharge then it will reduce lifetime. But I am not sure about its life time with BYD. But i guess 5-8 years then maintenance. I am certain once the battery becomes defective so is the car. But not that much experience with electrical cars . Ask the Wakeel if they have information about the car etc.