Android Wear Center
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
你有没有觉得，一个充电器/ USB连接线组充电设备非常快，而另一个不？现在，你可以用安培证明这一点。
测量电池的充电和放电电流。
Pro的功能：
- 小工具
- 通知
- 在设备警报
- 对Android Wear警报
该应用程序的工作原理在Android 4.0.3+的设备。不是每一个装置被支持，因为有其缺乏适当的测量芯片（或接口）设备和它们不能在所有支持。请阅读不支持手机列表在说明书的末尾。
应用程序是不是意味着要准确毫安。这是唯一的好评价其充电/ USB二合一连接线工作最适合你在同一设备上。
----
请仔细阅读常见问题解答：http://goo.gl/R8XgXX
----
启动应用程序并等待约10秒（“测量”，是在显示器上）。在此时间后，充电或放电电流将显示。
目前取决于许多因素：
- 充电（USB / AC /无线）
- USB连接线
- 手机类型
- 运行当前的任务
- 显示亮度
- 无线网络状态
- GPS状态
请不要在此应用程序的具体使用科学的读数。然而，读数不够好，相对测量充电器和USB连接线各是如何在同一台设备上的公平。
如果应用程序显示0毫安所有的时间，请使用设置选项“老测量方法”。可以强制该应用与它使用旧的测量接口，如果该棒棒糖设备具有至少一个。
不幸的是一些三星设备不给正确的（测量）值（如：S5），就在最大可能的充电电流与实际的USB数据线/充电器配置。这是一个固件问题。
----
背景信息：该应用程序措施的充电/放电电池的电流。如果您的手机没有连接到充电器，你看放电电流为负。如果连接了充电器那么当前何种充电器给将被用于提供手机和剩余功率将被充入电池。
如果你的手机消费300毫安没有充电器连接（在显示屏上-300mA），那么500 mA的充电器将电池最高200 mA电流（200毫安上显示）充电。
----
的
技术信息：该显示的电流是从50次测量减去10上的值和10下的值的平均值。显示的电流可以摇晃或不稳定甚至为零，这意味着，这是Android系统提供了稳定值。每家公司都使用不同类型的电池等硬件使得它很难得到你的充电器准确的结果。
----
锂聚合物电池不为它需要给手机充电的全时吸取的最大。如果您的电池几乎完全充电，然后充电电流会少得多通过较低的电池水平。
- 一个图形解释锂聚合物充电阶段：http://batteryuniversity.com/_img/content/ion1.jpg
- 戴夫（EEVBlog）锂聚合物充电教程：http://youtu.be/A6mKd5_-abk
----
手机/ ROMS只能用“老测量方法”兼容的接通和选择了正确的“测量界面”：
➤的HTC One M7 / M8
➤LG G3
报道手机/ ROMS将不工作与此应用程序：
➤银河大总理 - fortuna3gdtv
➤银河注2 - t03g，t03gchn，t03gchnduos，t03gcmcc，t03gctc，t03gcuduos
➤银河S3 - d2att，d2spr，d2vmu
➤银河TAB4 7.0 - degas3g
➤的HTC Desire 510 - htc_a11ul8x26
➤的HTC One S（威乐），X（endeavoru），XL（艾薇塔）
➤HTC感觉4G - 金字塔
请不要给错误的评级，如果你的手机是上述之一。没有应用程序是错误的，但你的手机不支持这种测量呢。
如果应用程序没有预先棒棒糖Android版本的设备上工作，那么请阅读第一，在这个XDA开发者论坛主题的第二帖：http://goo.gl/pZqJg8。请在XDA线程截图张贴您的问题。
请仔细阅读常见问题解答：http://goo.gl/R8XgXX
