ctek 5.0 or cetk 7.0 or ctek 10.0 ?

Hello together. I need a new battery charger. It is recommended again and again CTEK. I have an 80 AH car battery and am not the most patient about the charging time. At the same time I also look a bit at the money. The CTEK 5.0 has as far as I know only 5 Ah. Isn’t that a little bit little for an 80 Ah battery? CTEK 7.0 AND CTEK 10.0 are almost twice as expensive. What would be the best charger for me? I also have a scooter and a motorcycle with 12Ah or 14 Ah batteries. It wouldn’t be bad if I could charge the motorcycle batteries with the car charger.