Ampere

Ampere is a battery monitoring software designed specifically for mobile devices. It aims to help users understand their device's battery capacity, charging speed, and charging/discharging status in real time, providing a more comprehensive understanding of the device's condition and helping them decide whether to replace the battery or even the entire device. It's important to note that the current values displayed are the results of the last 50 measurements, ensuring a more accurate representation of the device's condition. The software also includes a built-in FAQ to help users resolve various issues related to battery capacity, ensuring worry-free use.

Features of Ampere:

Speed Analysis: The speed of the current will affect the charging time. Most devices are charged by fast chargers. However, users do not know how they work. The application will help them measure the current being transmitted. From there, users will have considerations when choosing a charger.

Accessory Check: Charging the device will take a while. During use, the charger may encounter problems. Users will easily notice the slowness in transmitting current. The application shares specific indicators for you to grasp. Chargers that do not ensure quality will be eliminated.

Power Efficiency: Faster power transmission will help users save time. They can also preserve the battery life of the device. Using poor-quality charging cables can affect the phone. The application will help users recognize this problem during the charging process and monitor it.

Current Tracking: The ability to transmit electricity will determine the value of the charger. Users can easily choose a quality charger when they see its capacity. The currents transmitted to the device will be displayed on the screen. Users can monitor the battery charging process and ensure there is no danger.

Issue Detection: Problems related to chargers all originate from their power transmission speed. Users can eliminate poor-quality battery chargers. You will know the problems that are happening during the use of the charger. From there, users can prevent their ability to affect the device.

Highlights of Ampere:

Easy to use: Ampere is a very convenient and easy-to-use application, as there is no need to do any additional setup or change any settings of the app. the moment when you install and open the application, it will work automatically. It consumes only 5 to 10 seconds to calculate the stats of your device. It gives you an accurate measurement of your device’s voltage, charge speed, and discharge speed.

Well optimized UI: The app comes out with a well-designed and straightforward user interface where you will get the setting and share option on the top right corner. By going to settings, you can apply the dark theme to change the app background into black. Likewise, you will get the stats of your device in three different colors.Suppose if your device is plugged in, you will get the stats in blue color, and when your device is not charging, the stats will appear in orange color. But when your device is overcharged, the stats will appear in red color.

Supports multiple devices: Ampere is compatible with multiple devices. You can use this application on devices such as Moto E/G/X, Nexus 4/5/6/7/9, OnePlus 1, Samsung Galaxy Note 2/3/10, Samsung Galaxy S3/S4/S5, Sony Experia M/Z, and many more devices. However, it supports all android devices, but it doesn’t show accurate information on few devices.Similar to Display Tester Pro, you can also use it to test your display information on any android device. And the best part is, you don’t even need any root permissions to run this application.

Multi-language support: The standout thing about the app is that you can change the app’s default language into different languages such as English, German, Chinese, Japanese, Portuguese, Spanish, Russian, Italian, Indonesian, Turkish, Romanian, and many more. You can select any language which is suitable and comfortable for you to understand.

User Reviews of Ampere:

Ampere is everything I need to know about my phone's battery. Works reliably, no fuss, no mess. There are other apps there, but Ampere hits the sweet spot. 6 stars One feature I would like to see one day is logging the data along with open apps identifiers, to SD card, but that is just because I am a data guy. Love the widgets! Great app, Highly Recommended.

Excellent app for monitoring battery charging performance! Ampere provides accurate and useful information about charging and discharging current, making it easy to test chargers, cables, and battery health. The interface is simple, lightweight, and easy to understand. It's a must-have tool for anyone who wants to optimize charging speed and troubleshoot battery issues. Highly.

App does exactly as it says, and does it accurately. I've used Ampere to monitor high battery drain in order to determine any pattern, and I solved my issue. Update 2026: This app is still the simplest to use with a clean interface and easy to read info. I've installed this on multiple devices and it always shows the best charger/lead combination for each device.

This app can show which chargers and which cables transfer current most effectively to your phone. Just grab a charger and then test all your cables, one-by-one, to see which transfers the most current. Perhaps label them! Then grab your best cable and test all your chargers one-by-one to see which puts out the most current. BE SURE to tap the gear icon, tap Basic Settings, and make changes as needed - like changing Celsius (°C) to Fahrenheit (°F). (Be sure to read the other info in Settings.)

FAQs of Ampere:

Why does this annoying “measuring” last almost 10 seconds?

Ampere measures the current 3 times a second and only gives you a measured value when 30 values have been collected. Ampere then filters the 10 highest and the 10 lowest values out and builds the average of the remaining 10 values which it displays as the shown value.Ampere’s internal buffer can hold a maximum of 50 values.

Why does the measurement start again after the phone has been switched off?

If you turn off your phone or leave the app (start or switch to other app), then Ampere goes to sleep and the measurement also stops.If you turn on your phone or start Ampere again then the measurement starts from the beginning and you need to wait the 10 seconds until enough measured values are collected to show you a stable value.

Why is the measured current unstable?

The displayed current can be shaky or unstable or even just zero. This means that the Android system is providing unstable values.Some phones, like the Nexus 4, report such unstable widespread readings when charging with a low current charger (e.g. 500mA), that even the average value is a joke.

How accurate is Ampere?

Please don't use the readings from this app as concrete science. The app is not meant to be mA accurate, but it is good enough as a relative measure of how various chargers and USB cables fair on the same device.

How can the notification icon in the notification bar be switched off?

The notification icon can be hidden by setting the notification priority to "minimum".⇒ Settings ⇒ Notification settings ⇒ Notification priority

Why does Ampere show weird values on my Samsung device?

Unfortunately, some Samsung devices don't give correct (measured) values. Just the maximum possible charging current with the actual USB cable/charger configuration. This is a firmware problem and Ampere can't correct this.

Final Thoughts:

Ampere is best suited for Android users who want a clearer look at charging performance without getting buried in technical details. It fits people who test accessories often, notice battery drain during the day, or want a fast way to check if a charging setup is doing its job. It is less useful for users with unsupported phones or anyone expecting full battery diagnostics beyond current measurement.