2 Battery - Battery Saver

Extend battery life and save data usage with 2 Battery!Efficient & Easy to use!

Sam Lu · com.a0soft.gphone.aDataOnOff

3.9 out of 5 (11 ratings) 10M+ downloads v3.58 5.4 MB Android 4.1+ PEGI 3 · Everyone

Download APK 5.4 MB All versions

Same certificate as v3.45, which matches Google Play Details

Watch the 2 Battery - Battery Saver trailer on YouTube

At a glance

Latest version: v3.58 (160003589)
Updated: Aug 27, 2020 (6 years ago)
APK size: 5.4 MB
Requires: Android 4.1+ (API 16)
CPU support: Any (no native code)
Category: Productivity (app)
Listed since: Oct 11, 2011 (at least)
Permissions: 30 (4 sensitive)
Website: android.a0soft.com/download.htm
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

2 Battery - Battery Saver is an app by Sam Lu in the Productivity category, listed since at least October 2011. It has no native code, so it runs on any Android processor.

Since version 3.45, the minimum Android version rose from 2.3 to 4.1. It asks for 30 permissions, 4 of them sensitive, including read phone status and identity, display over other apps and package usage stats. Compared with version 3.45, it adds 1 new permission (“Receive push notifications”) and drops 2 (“Read shared storage” and “Modify shared storage”). The app offers in-app purchases through Google Play.

Ratings

3.9out of 511 ratings

5 ★27%
4 ★36%
3 ★36%
2 ★0%
1 ★0%

Ratings from users of the source store — not collected or verified by AAPKs.

What's new in v3.58

v3.58~v3.56 ★ fixed: app not responding error when turning on/off the screen in some cases ★ add FAQ #18 about how to remove the Android System notification icon on Android 8+. Settings > About > FAQ ★ bugs fixed and optimizations

Description

From the listing uploaded by “fetek”.

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. FEATURES ★ 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 DashClock EXTENSION ★ requires DashClock Widget by Roman Nurik ★ estimated battery run out time ★ detailed battery information Sony SmartWatch 2 ★ warning when phone battery is low ★ support low power mode ★ Smart Connect extension for SmartWatch 2 SmartWatch 1 ★ warning when phone battery is low ★ LiveWare™ extension for SmartWatch 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 ★ AppNext 2013 best app ever awards We have been selected as a Google I/O 2011 Developer Sandbox partner, for its innovative design and advanced technology. CREDITS Arabic-Feras Gazzawie Croatian-Bruno Švorinić Czech-Michal Fiurášek Dutch-Niko Strijbol French-Johan Jaworski German-Michel Müller Hungarian-Gulács Attila Indonesian-Dwi Utomo Italian-Michele Mondelli Japanese-Yuanpo Chang Korean-장승훈 Polish-Grzegorz Jabłoński Portuguese-Wagner Santos Romanian-Stelian Balinca Russian-Идрис a.k.a. Мансур, Ghost-Unit Slovak-Patrik Žec Spanish/Swedish-Tomas Sylverberg Turkish-Kutay KuFTi 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.

Version history

2 versions are listed, going back to v3.45. Since v3.58 it requires Android 4.1+.

v3.58 LATEST Aug 27, 2020 5.4 MB TRUSTED v3.45 Aug 19, 2016 5.4 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “A0Soft” This is the certificate of the Google Play version.
Same certificate as v3.45, which matches Google Play v3.45

Store checks and file details

Developer signature not verified Nov 12, 2021
Antivirus scan passed Sep 20, 2020
Signed byCN=Sam Lu, OU=A0Soft, O=A0Soft, L=Hsinchu, ST=Taiwan, C=TW
Signing certificate (SHA-1)19:0D:80:57:CD:87:2B:2F:7E:F6:7A:2A:7D:EA:51:17:E0:CC:89:45
File MD59c1baab7cb2515166ea9df63869b02c8
Uploaded by “fetek” Bronze tier · 8,291 followers · uploading since 2012

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (30)

2 Battery - Battery Saver requests 30 permissions, 4 of them sensitive.

Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Package usage stats Sensitive android.permission.PACKAGE_USAGE_STATS
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Write settings Sensitive android.permission.WRITE_SETTINGS
Access 4g state android.permission.ACCESS_4G_STATE
Access wimax state android.permission.ACCESS_WIMAX_STATE
Bluetooth android.permission.BLUETOOTH
Bluetooth admin android.permission.BLUETOOTH_ADMIN
Broadcast sticky android.permission.BROADCAST_STICKY
Change 4g state android.permission.CHANGE_4G_STATE
Change network state android.permission.CHANGE_NETWORK_STATE
Change wifi state android.permission.CHANGE_WIFI_STATE
Change wimax state android.permission.CHANGE_WIMAX_STATE
Control vibration android.permission.VIBRATE
Extension permission (custom) com.sonyericsson.extras.liveware.aef.EXTENSION_PERMISSION
Full network access android.permission.INTERNET
Get tasks android.permission.GET_TASKS
In-app purchases (Google Play Billing) com.android.vending.BILLING
Modify phone state android.permission.MODIFY_PHONE_STATE
Nfc android.permission.NFC
Prevent the device from sleeping android.permission.WAKE_LOCK
Push messaging (app-defined) com.a0soft.gphone.aDataOnOff.permission.C2D_MESSAGE
Read sync settings android.permission.READ_SYNC_SETTINGS
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE
Write apn settings android.permission.WRITE_APN_SETTINGS
Write secure settings android.permission.WRITE_SECURE_SETTINGS
Write sync settings android.permission.WRITE_SYNC_SETTINGS

2 Battery - Battery Saver APK: questions and answers

Is there a version of 2 Battery - Battery Saver for older Android phones?

The current version needs Android 4.1 or later. Version 3.45 is the newest listed build that installs on Android 2.3 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 3.45 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is 2 Battery - Battery Saver free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the 2 Battery - Battery Saver APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with the same certificate as version 3.45, whose signature matches the Google Play version. After downloading, check that the file's MD5 is 9c1baab7cb2515166ea9df63869b02c8.