Droid 2 owners, like most people who use powerful smartphones, tend to be obsessive about battery life and want to wring every last minute out of their batteries without giving up any of the Droid 2’s considerable power.
The Battery Manager helps you do that, by letting you choose the best trade-off between battery life and Droid 2 features. Tap it, and you come to a screen that shows you how much power you’ve got left in your battery.
Tap the battery graphic, and you can see what uses up most of your Droid 2 battery life. A helpful chart shows you exactly where your juice is going. Armed with this information, you may be able to turn off various Droid 2 features and options to get more life out of your battery. For details on how to save battery life beyond choosing the right battery profile, see the box on Maximizing Your Battery Charge.
Back on the main Battery Manager screen, at the bottom part of the screen you see what battery mode you’re using. The Droid 2 has three battery modes that balance battery life with the way in which the Droid 2 connects to 3G and Wi-Fi networks—Maximum battery saver, Nighttime saver, and Performance Mode.
In Maximum battery saver mode, your display is dimmed, and the phone stops syncing data after you haven’t used the phone for 15 minutes during both the day and night.
In Nighttime saver mode, the phone stops syncing data after you haven’t used the phone for 15 minutes between the hours of 10 p.m. to 5 a.m. During all other hours, it syncs as normal.
In Performance Mode, the phone syncs without any restrictions during the night and day.
Tap the “Battery mode” button if you want to choose a different mode from the one you’re currently using.
Even after the Droid 2 turns off syncing, it’ll turn back on when you need to use it. When you use your phone, it turns back on.
When you tap the button, from the screen that appears you can also choose to customize battery use. Tap “Custom battery saver”, and then tap the small gear icon to its left. From here, you can change how long it takes the Droid 2 to turn off a data connection after you haven’t been using it. You can choose anywhere from 15 minutes to 1 hour.
Because you tend to use the Droid 2 more during certain hours than others, you can have the data connection set differently depending on the time of day—for example, you may want it to close a data connection quickly late at night, but more slowly during the day. The “Off-Peak hours” section of the screen lets you set when you don’t use the Droid 2 frequently, and choose a setting for then. The “Peak hours” section lets you choose a setting for your hours of peak usage.