I checked it through this app. Battery life says 'Good' but I feel like it drains a little faster than it used to. It has been 3 years since I purchased it, so it makes sense. If ever, how much will it cost? Just estimated cost will do so I would have an idea. My phone is still okay so I don't think I'm going to upgrade yet. Thank you!
Your lower battery life could be due to a number of problems - from more background apps running, constantly having high brightness on your phone, or even just plain degradation over time.
To diagnose the problem properly, I recommend you head to your nearest Samsung Experience Store. They'll be able to tell you exactly what's going on with your device, and even give you an estimate on how much a battery replacement will cost.
