What maintenance should I do on my Toyota Prius hybrid battery?

I recently bought a used Toyota Prius and I am wondering what maintenance I should be doing on the hybrid battery. I want to make sure it lasts as long as possible and doesn't need to be replaced anytime soon.

Regularly check and maintain the fluid levels in the hybrid battery. This will help prevent any damage from occurring.

Avoid excessively charging or discharging the hybrid battery. This can put stress on the battery and decrease its lifespan.

Ensure that the hybrid battery is getting enough ventilation to prevent overheating. This can be done by keeping the air vents unblocked.

Have a trained technician perform a hybrid battery check every 20,000 miles to catch any potential issues early on.

Consider investing in a hybrid battery warranty for added peace of mind. This can save you from expensive replacement costs in the future.