What are the best apps for saving battery life and memory?
Memory: Unless you root your phone, memory management is more about you managing what you put on your phone. It's great to have all kinds of apps in your apps drawer. All those icons look pretty, but all those apps take up memory, even if you can move some of them to your SD card. The only way to get rid of unused/unwanted apps that came on your phone is to be rooted, and rooting is a whole different topic, but one you should look into whether you decide to root or not...good idea to understand what people are talking about in these forums when they say something about "root". There is little you can do, without root, to manage memory aside from installing only apps that you will use frequently. Having an app that installed that you never use only eats up storage space. Android does a good job of managing it's available resources...it will turn apps on and off as it needs them or doesn't need them...there is little you can do to control that...even with root.
Bottom line...get extended battery, turn off or turn down functions that eat battery (screen, updates, GPS, WiFi, bluetooth etc), manage what you put on your phone to those apps that you frequently use and let the Android system manage its resources. Get rid of any downloaded task manager...they usually use more battery that they are worth and often cause more problems than they are worth.
Forgot to mention...there are a number of pretty good cache cleaners in the market (free). Like a PC, it never hurts to clean out the cache every day or so.
Last edited by jpcalhoun; 06-28-2011 at 08:23 AM.
+1 for Juice Defender. Even the free app brings a noticeable increase to battery life. Power Save Mode Enabler will dim your screen and bring down other settings once your power gets low. Using Power Schedule or Camel, you can set up times or locations you want your phone to into airplane mode, turn on and off wireless, gps, and bluetooth.
If you use a bluetooth device of some sort. Automatic Bluetooth Toggler will turn on bluetooth when receiving calls and turns it off when calls end, saving power and keeping you from having to remember to turn off bluetooth on your own.
Also, keeping your brightness on the "auto" setting allows it to adjust to the time of day and doesn't just blare at full brightness the whole day. The in-pocket detection option also can help with power.
Old Phones: HTC Droid Eris, Droid Pro
Currently using: Droid 4
I use a free app called Android Assistant. Its a cleaner and optimizer all in one, with a few other tools. You can setup a automatic optimizer at a hourly interval which cleans the cache and does some other stuff that i dont know. Seems to have helped my battery life a good bit. That and i got rid of Task killer.