Smartphones have become incredibly powerful over the past few years. And as we all know, with great power, comes great power consumption! Unfortunately, battery technology hasn’t been evolving at the same pace as smartphones. For this reason, battery life has become a major concern for most smartphone users today. On highly powerful devices such as the Samsung Galaxy S III, some users find it difficult to last an entire day.
While you can’t really do anything to magically increase your battery life to several days, there are certain steps that can allow you to get the most possible. XDA Forum Moderator Woodrube has written a simple, easy to follow guide to help yield 20+ hours of battery life on a single charge on your Galaxy S III. This multi-post guide covers basic tips and tricks, ROM/kernel related suggestions, memory management tips, and apps to help you get the most juice out of your battery.
While the guide has been written with the Galaxy S III in mind, many of these steps should apply to other smartphones as well. Visit the forum thread for more details and the complete guide.