If you are looking for the Best Free Battery Optimizer App For Android to download for free, look no further.
Our expert panel of reviewers has tested dozens of apps and we have compiled a list of the 4 Best Free Battery Optimizer App For Android that passed our tests.
Check out our list of the 4 Best Free Battery Optimizer App For Android, tried and tested by our expert reviewers.
4 Best Free Battery Optimizer App For Android
1. dfndr battery: manage your battery life
“dfndr battery is a battery saver app that helps you conserve your phone’s battery life in a variety of ways. It closes inactive applications running in the background that are consuming battery life while allowing you to select the ones that you want to keep open. It also acts as a power saver by controlling the brightness of your phone’s screen.
dfndr battery is packed with powerful features, including:
✓ Quick Optimization
✓ Super Optimization
✓ Battery Cooler
✓ Lockscreen Charge Monitor
✓ Customizable Profiles
✓ Battery Health Report
✓ Screen Saver
Quick Optimization is the easiest way to conserve your device’s battery life. You can use it several times a day to help save battery power, especially if you use your phone frequently or have no easy way to recharge it.
🚀 Super Optimization 🚀
Apps that run in the background can consume battery life even when you’re not using them. Super Optimization closes apps that are in the background and stops them from draining precious battery power. The best part? It gives you the control and flexibility to easily choose which apps you want to keep open and which ones you want to turn off.
Battery Cooler helps to keep your phone cool by lowering the temperature of your battery and therefore slowing power consumption. Not only will you save battery life, but you will also protect your CPU and other phone components from potential damage.
🔋Lockscreen Charge Monitor🔋
With Lockscreen Charge Monitor, you can keep an eye on your phone’s battery life, get notified in real-time when your battery is fully charged, and prevent overcharging, all from your phone’s lock screen. Custom settings such as receiving notifications on your lock screen and setting the screen wake-up period can also be configured to suit your individual needs.
👤Customizable Profiles 👤
Choose from among four personalized battery saver profiles to create a custom experience made just for you:
✓ Emergency profile: automatically activates when battery reaches 10% of charge remaining.
✓ Location profile: optimizes battery consumption depending on your location, whether you’re at home or work.
✓ Peak Times profile: enables you to automatically switch to battery saving mode during set hours of the day.
✓ Prolong profile: one more way to configure unique settings to preserve power
Within each profile setting, you can adjust features such as screen brightness, screen timeout, vibrate, touch feedback, and Bluetooth to get the most out of your phone battery.
📋Battery Health Report 📋
Get a convenient snapshot of the overall health and status of your phone battery, including information such as the percentage of power remaining, battery temperature, and battery capacity.
Our new battery saver technology shuts off up to 33% of your screen’s light output without compromising brightness and visibility.
Note: This app requires Accessibility to activate its core functions.
⚠️ Join our fight against deceptive advertising ⚠️
PSafe is committed to the online safety and security of our users. Unfortunately, some third parties are illegally using our name and logo to create misleading ad content, such as in the form of “scareware” falsely stating that your device is infected with a virus. PSafe unequivocally denounces these “scareware” tactics. If you receive a suspicious “virus alert” type ad, please take a screenshot of the ad, copy the full browser URL link of the ad or its redirect and email both to: email@example.com. We appreciate your support in fighting these malicious practices.
How to identify fake virus alert ads:
👉 Visit our website: www.psafe.com
👉 Do not sell my personal information: https://www.psafe.com/do-not-sell-my-personal-information/”
“Aggressive Doze” and “Doze on the Go” to maximize the battery saving on Android 6+, even without root! (details explained in settings)
Never should your phone or tablet become slower and battery hungrier after lots of apps installed. With Greenify, your device can run almost as smoothly and lastingly as it did the first day you had it!
Greenify help you identify and put the misbehaving apps into hibernation when you are not actively using them, to stop them from lagging your device or leeching the battery, in a unique way! They can do nothing without explicit launch by you or other apps, while still preserving full functionality when running in foreground.
Please report bugs in the XDA forum (http://goo.gl/ZuLDnE) or G+ community (http://goo.gl/MoszF).
Greenify NEVER EVER collects your personal data despite the capability of accessibility service, it just takes advantage of it to automate the hibernation procedure.
IMPORTANT: Greenifying an app implies that you are aware that all the background functionality (service, periodic task, event receiver, alarm, widget update, push message) of this app will become out of service during the hibernation except when you are using this app.
NEVER greenify alarm clock apps, instant messaging apps unless you don’t rely on them. Please do verify the impact of greenified apps on which you heavily rely.
Note: Greenify does need background running services for auto-hibernation to work. It is designed and implemented in extremely lightweight and nearly zero CPU and battery consumption.
=== PERMISSIONS ===
DEVICE ADMIN: This app uses administrator privilege to turn off the screen immediately after automated hibernation on non-root devices. This permission will be requested explicitly for your consent only if required.
DRAW OVER OTHER APP: To dim the screen during automatic hibernation when the screen is expected to be off.
DISABLE SCREEN LOCK & BIND ACCESSIBILITY SERVICE: For automatic hibernation to work on non-root devices.
GET ACCOUNTS & WRITE SYNC SETTINGS: Control the account sync of apps if its sync task is too frequent.
This app uses Accessibility services, to automate the hibernation procedure.
=== FAQ ===
* It seems that automatic hibernation is not working.
* Some of my greenified apps (e.g. Google Maps) seems not hibernating.
* I want to greenify system apps!
* De-greenified apps still got no push notification!
Read here: http://goo.gl/99lNYp
=== Translation ===
All translations are created by community volunteers and open for contribution: http://goo.gl/zCCDce
=== Donation ===
If you love Greenify, please consider the “donation package” (http://goo.gl/fpz5l) for extra experimental features:
* Greenify system apps
* In-depth details about how apps behave on your device
* And more”
3. 2 Battery – Battery Saver
“Does the phone run out of battery quickly? Does the phone always die at crucial moment? This app extends many extra hours to the battery life by managing Internet connection intelligently and in the background.
*** More Than 10,000,000 Downloads! ***
Android 2.x~8.x are also supported!
Our new app can auto switch 2 Battery. More functionality and flexibility. Download from Play on https://goo.gl/rts60P !
You don’t need to manually turn on/off the Internet connection anymore. This app extends battery life by using a smart algorithm to turn on/off the Internet connection, reduce battery consumption and data usage, but still keep the important background data synchronized.
1. Auto manage 3G/4G/WiFi connection in the background
2. Show battery level and usage in the status bar
3. Efficient & easy to use
INSTALL AND FORGET
Or take time to configure the settings to get the most out of it and the longest battery usage time!
SATISFIED OR MONEY BACK GUARANTEE
Try PRO version for 24 hours and get a refund if you don’t like it.
★ Manage Internet connection intelligently in the background
★ Configurable enable intervals and settings
★ Detailed battery usage curve and information
★ Support whitelist and blacklist
★ Support night mode (PRO-only)
★ No ads (PRO-only)
★ Battery icon theme is changeable
★ Fully charged notification and low battery warning
★ Build-in screen filter to further reduce the screen brightness
★ Auto turn off the screen when you put the phone upside down on the table or into the pocket
★ Home screen widgets, battery level, quick settings
★ Display battery usage and time since last unplugged, estimated battery run out time, battery health status, voltage, temperature, etc. information
2 Battery Add-on
★ provide more battery icon themes
Permissions – some sensitive permissions are required:
• BIND_DEVICE_ADMIN: this app uses the Device Administrator permission which is used to provide the “Auto screen off” feature. It’s optional
• READ_EXTERNAL_STORAGE/WRITE_EXTERNAL_STORAGE: used to read/save app log report from/to SD
• READ_PHONE_STATE, WRITE_SETTINGS: toggle Wi-Fi, mobile data, etc. settings for saving the battery
• PACKAGE_USAGE_STATS: get the top app information for the “Blacklist” feature
• SYSTEM_ALERT_WINDOW: used for the “Screen filter” feature
We have been selected as a Google I/O 2011 Developer Sandbox partner, for its innovative design and advanced technology.
Russian-Идрис a.k.a. Мансур, Ghost-Unit
Vietnamese-Trần Thanh Bình
Become a beta tester? Please join 2 Battery (http://goo.gl/vcHKs7) Google group.
If you are interested in helping us to translate this app to your native language, please let me know.”
4. Kaspersky Battery Life: Saver & Booster
Now, you can boost mobile battery life… spend less time with your Android device attached to its battery charger… and get more out of your mobile life – without constant concerns about low battery level.
Kaspersky Battery Life is the FREE battery saver tool that helps you boost mobile battery life for your Android phones and tablets. It automatically monitors every app that’s running on your devices… lets you know which apps are consuming the most energy… tells you how many minutes of battery life are left… and helps you shut down unnecessary apps.
The battery saver that puts you in control
Every app that’s running on your device is continually monitored – even apps that are running in the background. You can stop any apps that are using too much energy – while ensuring your favorite apps keep running. With Kaspersky Battery Life, you can spend more time getting on with the things you want to do… and less time worrying about low battery level.
Watches out for ‘hungry’ apps
If one of your apps suddenly starts to use more energy than it usually does, you’ll get an automatic alert – so you can decide whether to halt that app.
Gives you a more accurate prediction of battery life
Because Kaspersky Battery Life is continually monitoring each app’s energy consumption, it keeps a very close watch on your device’s battery level… to give you a more accurate prediction of how much charge is left in your device’s battery – in hours and minutes.
Boost mobile battery life for your Android devices… get Kaspersky Battery Life – the FREE battery saver app.
This app uses Accessibility services.
To securely protect your private data, use AppLock which can block your mobile apps like a photo vault, private messenger, social networks, settings and many others, and prompt you to enter the secret password to access those.”