v2.03.2 Beta / 2016-10-19
(4.4/5) (36994)

Description

Did you ever felt, that one Charger/USB cable set charges your device really fast and the other not? Now, you can prove this with Ampere.

Measure the charging and discharging current of your battery.

PRO features:
- Widgets
- Notification
- Alerts on device
- Alerts on Android Wear

The app works on Android 4.0.3+ devices. Not every device is supported because there are devices which lacks an appropriate measurement chip (or the interface) and they can not be supported at all. Please read the list of not supported phones at the end of the description.

The app is not meant to be mA accurate. It is only good for evaluate which Charger/USB cable combo is working the best for you on the same device.

----

Please read also the FAQ: http://goo.gl/R8XgXX

----

Start the app and wait ca. 10 seconds ("measuring" is on the display). After this time, the charging or discharging current will be shown.

The current depends on many things:
- Charger (USB/AC/Wireless)
- USB cable
- Phone type
- Current tasks running
- Display brightness
- WiFi state
- GPS state

Please don't use the readings on this app as concrete science. However, the readings are good enough to relatively measure how various chargers and USB cables fair on the same device.

If the app shows 0mA all the time, please use the settings option "Old measurement method". You can force the app with it to use the old measurement interface, if the Lollipop device has at least one.

Unfortunately some Samsung devices don't give correct (measured) values (e.g.: S5), just the maximum possible charging current with the actual USB cable/charger configuration. This is a firmware problem.

----

Background info: The app measures the charging/discharging current of the battery. If your phone is not connected to a charger, you see the discharging current which is negative. If you connect a charger then the current what the charger gives will be used to supply your phone and the remaining power will be charged into the battery.

If your phone consumes 300 mA without a charger connected (-300mA on the display), then a 500 mA charger will charge your battery maximum with 200 mA current (200mA on display).

----

Technical info: The displayed current is an average value from 50 measurements minus the 10 upper values and the 10 lower values. The displayed current can be shaky or unstable or even zero which means, that the Android system provides unstable values. Every company uses different battery types and other hardware making it difficult to get accurate results about your charger.

----

LiPo batteries don't draw the maximum for the full time it takes to charge the phone. If your battery is charged almost full then the charging current will be much less as by lower battery levels.

- A graph explaining LiPo charge stages: http://batteryuniversity.com/_img/content/ion1.jpg
- Dave's (EEVBlog) LiPo Charging Tutorial: http://youtu.be/A6mKd5_-abk

----

Phones/ROMS compatible only with "Old measurement method" switched on and selected the right "Measurement interface":
➤ HTC One M7 / M8
➤ LG G3

Phones/ROMS reported to be not working with this app:
➤ Galaxy Grand Prime - fortuna3gdtv
➤ Galaxy Note2 - t03g, t03gchn, t03gchnduos, t03gcmcc, t03gctc, t03gcuduos
➤ Galaxy S3 - d2att, d2spr, d2vmu
➤ Galaxy Tab4 7.0 - degas3g
➤ HTC Desire 510 - htc_a11ul8x26
➤ HTC One S (ville), X (endeavoru), XL (evita)
➤ HTC Sensation 4G - pyramid

Please do not give wrong rating, if your phone is one of the above. Not the app is wrong, but your phone does not support this kind of measurement yet.

If the app doesn't work on your device with pre-Lollipop Android version, then please read the first and the second posts in this XDA developer forum thread: http://goo.gl/pZqJg8 . Please post your problem with screenshots in the XDA thread.

Please read also the FAQ: http://goo.gl/R8XgXX

App Information Ampere

  • App Name
    Ampere
  • Package Name
    com.gombosdev.ampere
  • Updated
    2016-10-19
  • File Size
    5.72 M
  • Requires Android
    4.0.3 (Ice Cream Sandwich MR1, API 15)
  • Version
    v2.03.2 Beta
  • Developer
    braintrapp
  • Installs
    1,000,000 - 5,000,000
  • Price
    Free
  • Category
    Strategy
  • Developer
  • Google Play Link

Ampere Version History

Select Ampere Version :
  • v2.03.2 Beta (153)
  • v2.03.1 Beta (152)
  • v2.03 (151)
  • v2.02.6 Beta (149)
  • v2.02.5 Beta (148)
  • v2.02.4 Beta (147)
  • v2.02.3 (146)
  • v2.02.2 Beta (145)
  • v2.02.1 Beta (144)
  • v2.02 (143)
  • v2.01.8 Beta (142)
  • v2.01.7 Beta (141)
  • v2.01.6 Beta (140)
  • v2.01.4 Beta (138)
  • v2.01.3 Beta (137)
  • v2.01.2 Beta (136)
  • v2.01 Beta 1 (135)
  • v2.01 (134)
  • v2.00.2 Beta (133)
  • v2.00.1 Beta (132)
  • v1.58 (122)
  • v1.54.2 Beta (102)
  • Ampere v2.03.2 Beta (153) APK File

    Publish Date: 2016-10-18
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 1e35e28e8bde9d6f2fd2eeff90a6a6bd
    File APK Sha1: 37a27b5524918fe46d13355e38f4004d19645c33
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    v2.03.2 Beta:
    * Finnish language added
    * Urdu language added
    * Language updates
    * Bug fixes
    Ampere FAQ: goo.gl/R8XgXX
    For more info please read the change history: Settings => About Ampere => Change history
  • Ampere v2.03.1 Beta (152) APK File

    Publish Date: 2016-10-03
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: c0b12795488d4142b56c066706d9e19f
    File APK Sha1: 3ca657ade6707d2960ae412265575446d22f4dad
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    v2.03.1 Beta:
    * Finnish language added
    * Language updates
    * Bug fixes
    Ampere FAQ: goo.gl/R8XgXX
    For more info please read the change history: Settings => About Ampere => Change history
  • Ampere v2.03 (151) APK File

    Publish Date: 2016-09-15
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: fdaff54d624263701bf8578c71b6bb59
    File APK Sha1: 0c1703085db7b8343311e2c54f74c159cf4a5287
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    v2.03:
    * Settings option for changing the widget's text size
    * Language updates
    * Bug fixes
    Ampere FAQ: goo.gl/R8XgXX
    For more info please read the change history: Settings => About Ampere => Change history
  • Ampere v2.02.6 Beta (149) APK File

    Publish Date: 2016-08-24
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 3a6f7f20b18643552b4cf5cb76474d1b
    File APK Sha1: 2edd128b6df29c3b280865f2d7a7f11a5e79650e
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    v2.02.6 Beta:
    * Language updates
    * Settings option for changing the widget's text size
    * Bug fixes
    Ampere FAQ: goo.gl/R8XgXX
    For more info please read the change history: Settings => About Ampere => Change history
  • Ampere v2.02.5 Beta (148) APK File

    Publish Date: 2016-08-22
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: e5d963d33637f6b0a9a9de8a8f3b0abe
    File APK Sha1: f8bee7e12f5cae696b56c9bc898acd7c3061b86d
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    v2.02.5 Beta:
    * Settings option for changing the widget's text size
    * Language updates
    * Bug fixes
    Ampere FAQ: goo.gl/R8XgXX
    For more info please read the change history: Settings => About Ampere => Change history
  • Ampere v2.02.4 Beta (147) APK File

    Publish Date: 2016-07-24
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 7e680e5a6f1a3e8ea5ebad9794d10a2e
    File APK Sha1: dc7631d198a491d025b4a2104dbceb2d618c0cfe
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.02.3 (146) APK File

    Publish Date: 2016-07-17
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: f481215630163a561fa39de43cba6bcf
    File APK Sha1: 0d42a112ddfb602fd8cc3b0af008e09913645dce
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.02.2 Beta (145) APK File

    Publish Date: 2016-07-14
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: f71210b443872f4c5f5e7c11f5d5de9c
    File APK Sha1: a00c94a5eb1467dd0da227e73e8938b12c10ee1b
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.02.1 Beta (144) APK File

    Publish Date: 2016-07-11
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 805be47f0369610d86d867203dcdafb3
    File APK Sha1: 2a44c6ed065f95a711ec48b455aebac25e678a2a
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    APK Notes:

    Bug fixes

  • Ampere v2.02 (143) APK File

    Publish Date: 2016-07-10
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 2c07160e61467b11c692438c7f385f3c
    File APK Sha1: ad8e01c7a9125b8f64d06fd415507e8e4092d88f
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01.8 Beta (142) APK File

    Publish Date: 2016-07-03
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 256d3e52f806706f777536c069312d4b
    File APK Sha1: 992dc6d3405da598c28a19282219dc308975042c
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01.7 Beta (141) APK File

    Publish Date: 2016-06-28
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 540884d1cb8db66955b6e01a84c6456c
    File APK Sha1: e8394441f4f3703bbc3e2dbc340b959cf7394738
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01.6 Beta (140) APK File

    Publish Date: 2016-06-26
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: c0b4428f74a341056e36a7d7da5f1a9b
    File APK Sha1: f5768f7e094a68f7febe58e11a42cc4625a08ec5
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01.4 Beta (138) APK File

    Publish Date: 2016-06-13
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 8626bb21bafee29d6c8eda45e4857645
    File APK Sha1: 61c0a3cc4e8131f9e2ca0dc73cd20a6d2a7316b6
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01.3 Beta (137) APK File

    Publish Date: 2016-06-18
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 2b3bdf0127f4e03d569144c9f02b6efa
    File APK Sha1: 9f831708be39b85f6d2ae09ded40c09a8964a6a1
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01.2 Beta (136) APK File

    Publish Date: 2016-06-22
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: e82f0703a7b9052cfc7eae3eee4778d4
    File APK Sha1: 5367b081157d59a834a8dc1de233ddae823d2d57
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01 Beta 1 (135) APK File

    Publish Date: 2016-06-25
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 360106f1d0fd6f8dceae8dfbeed9193c
    File APK Sha1: 7b06387d2d9f7cccb0e513daf734a57957a3e6bd
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.01 (134) APK File

    Publish Date: 2016-07-03
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 9832877a5abbaf7fd38694f8f58a8222
    File APK Sha1: eeefb425974d7326ce7efeb6ca50cf214ebc7f6c
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    APK Notes:

    v2.01:
    * New translations: Albanian, Lithuanian, Japanese
    * Bug fixes

  • Ampere v2.00.2 Beta (133) APK File

    Publish Date: 2016-03-24
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 0bf94ac37c7838eb3e0e9ca3bf175cd9
    File APK Sha1: 24d8a8f200d7bc22d86c43185e0a8ca38ee5caa2
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v2.00.1 Beta (132) APK File

    Publish Date: 2016-03-15
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 6 MB (APK file)
    File APK Md5: 238c0e3db9fe6881e85c8e6de10efc33
    File APK Sha1: b49d268a7e0009071801206e53315f327b9d63bf
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
  • Ampere v1.58 (122) APK File

    Publish Date: 2015-12-27
    Requires Android: Android 4.0.3 and up
    File Size: 5 MB (APK file)
    File APK Md5: 8b3b7241233a0af372189d10fb627f51
    File APK Sha1: 7a7e69c2bcc706f451bc156314cd0d86770843c2
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    v1.58: * Bug fixes Ampere FAQ: http://goo.gl/R8XgXX For more info please read the change history: Settings => About Ampere => Change history Note: Because of a firmware bug please use "Old measurement method" on Nexus devices with Marshmallow (Android 6).
  • Ampere v1.54.2 Beta (102) APK File

    Publish Date: 2016-06-29
    Requires Android: 4.0.3 (Ice Cream Sandwich MR1, API 15)
    File Size: 5 MB (APK file)
    File APK Md5: 1a6f10609bb2e105413ac38bcdd2b092
    File APK Sha1: c1f26128db68bd63d66398edd9e4ebfd24e9e7fa
    APK Signature: 31241bbb6aaf2c3857c7a24bed10f478716d8cc3
    What's new :
    APK Notes:

    * Marshmallow release
    * Read Contacts permission not needed anymore
    * New FAB button (has shadow also for pre lollipop versions)
    * Bug fixes

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