The battery life of a Samsung smartphone depends on various factors, such as how often you use your phone, which apps you use, how high you set your screen brightness and how strong your network signal is. In general, you can say that a Samsung smartphone can last about a day without charging. But if you watch a lot of videos, play games or browse the internet, your battery can drain faster. In addition, the older the phone, the faster your battery performance will deteriorate. This doesn’t have to be a big problem. You’ll simply need to put the battery on the charger more often. Tip: with a power bank, you can charge your smartphone anytime and anywhere.