samsung galaxy SII

Eric has a Samsung Galaxy SII and he's not happy with the battery life. Leo says that is a common issue with today's smartphones and Leo always just buys a backup battery. There's a few things he can do, though. There are tips at XDA Developers Forums. Search for battery life and he'll find some great advice.

In Android 4.0 (ICS) and above, Greg can set limits to data usage or monitor what he's using. The chatroom suggests Data Usage Defender and Watchdog.