The easy-to-browse index comes from online electronics retailer LiGo, and is broken down into two simple drop-down menus. Select your phone's make, then select the model, and you'll see several tips for saving battery life listed. Click each tip to learn more about how to use it to your advantage and why it can help. A lot of tips for popular phone models—or phones with the same OS—are pretty similar, however. For example: If you have an iPhone capable of running iOS 8, the tips will generally be the same for all iOS 8 capable models. That being said, there are plenty of good tips for less popular phone makes and models that don't normally receive as much attention. Find tips for your smartphone at the link below.