The iPhone battery was built-in, it is not so easy to reaplace it without open tool. But there are some extend power for iPhone, you can choose them to get more power.
An expandable battery is if you would like to switch out the existing battery with a longer-lasting one. It will extend battery life.
It depends, studies have shown that the 4.2.1 update has sped up not only the device but also battery life. Depending on if you are Jailbroken or not and how many apps you run in the background.
The Apple iPhone 6 Plus has a better battery life than the Apple iPhone 6.
3 hours
It really depends on how log you've had the IPhone. And if your brightness is turned down. It matters most how old your IPhone is, how your battery life is, and all of the tips you can use to make your battery life longer. I hope this information helped you!
Yes, you can charge your iPhone when it has a good amount of battery. However, you should avoid charging the phone until it is low in battery, to prolong the battery life.
That depends on what you are doing.
The battery life of iPhone 3G is very short. That is, only around 5 hours if you are using voice (talking) or data (web browsing). The battery life extends to 24 hours if you are just using it to listen to music.
Waiting for the battery to drain completely to extend battery life.
To extend the battery life of a Nikon D7200 battery, you can turn off features like image stabilization and auto-focus when not needed, use a higher capacity battery, avoid extreme temperatures, and keep the battery contacts clean.
No, licking a AA battery will not extend its life. In fact, it can be dangerous as it can cause a short circuit and harm your tongue. It's best to handle batteries carefully and not expose them to moisture or unnecessary contact.