Having instant access to monitoring your battery level is critical, especially when you're traveling or forget your charger at home. You need to know how much juice you have so you can adapt accordingly.
If you have the featured enable on your Samsung Galaxy S3, you can quickly glance at the Status bar to see the exact percentage left, but to me, it just makes things more cluttered up there. If you're rooted, you can easily remove the green battery icon to make room for the percentage indicator, but again—you need root access for that. If you don't want to root and still want a better way to... more