Does the brand of battery really matter for how long it lasts in Sharjah?

I'm about to buy a new battery for my 2015 Honda Accord and I'm confused by all the choices and price ranges. At my local battery shop in Sharjah, I see batteries ranging from 220 dirhams to 550 dirhams. The salesman told me that the expensive ones will last 3 years or more, while the cheap ones might only last 18 months. But is that actually true, or is he just trying to upsell me? I've been researching and I found a website where I can read the full guide about battery life in the UAE. But I still want real world opinions from actual drivers. Has anyone here actually tested different battery brands in Sharjah conditions? Did the expensive ones really last significantly longer than the cheap ones? I've had cheap batteries that lasted 2 years and expensive ones that died in 18 months, so my own experience is mixed. But maybe I just got unlucky. Is there a specific brand that people in the UAE trust for hot climate performance? I've heard names like AC Delco, Bosch, Varta, and Exide mentioned. Are any of these actually better than the generic shop brands? What about maintenance free batteries versus ones where you can check and top up the water levels? In extreme heat, does the ability to add distilled water help extend battery life? I'm willing to pay more if it actually means I won't have to replace my battery for 3 or 4 years. But I don't want to waste money on marketing if all batteries are basically the same. Also, does the warranty length tell you anything about quality? Some batteries have 1 year warranties, some have 2 years. Does a longer warranty mean the manufacturer expects it to last longer, or is it just a marketing gimmick? I'd love to hear from people who have tracked how long their batteries actually lasted and what brand they bought. Please share your real world data – what brand, how many months it lasted, and whether you parked in shade or sun, did short or long trips, etc. I want to make an informed decision based on real experiences, not just sales talk. Any advice would be really appreciated because I'm tired of replacing batteries every 2 years and I'm willing to pay more upfront if it actually solves the problem. Please be honest about what has and hasn't worked for you.