Charger Tester (ampere meter) APK

Version 3.9 - com.apps.asterios.charger
Last updated: 2020-05-25

Are you using the right charger for your device. Check live the amperage in mA.

APP Information

Download Version 3.9 (29)
Apk Size2.24 MB
App DeveloperAsterios
Malware CheckTRUSTED
Install on Android4.0.x and up
App Packagecom.apps.asterios.charger.apk

Download Charger Tester (ampere meter) 3.9 APK

App Description

Charger Tester (ampere meter) is apps,asterios,charger,tools,tester, content rating is Everyone (PEGI-3). This app is rated 2.67 by 3 users who are using this app. To know more about the company/developer, visit Asterios website who developed it. com.apps.asterios.charger.apk apps can be downloaded and installed on Android 4.0.x and higher Android devices. The Latest Version of 3.9 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 2469+ times on store. You can also download com.apps.asterios.charger APK and run it with the popular Android Emulators.

Nowadays almost any charger can plugin to any mobile device. This app checks if a charger is providing the sufficient power to charge the connected device quick and right.  You can see the amperage live in mA (if your device supports this). Connect your charger to get the battery charging current or disconnect it and get the negative discharging current and be informed for your systems consumption anytime. Keep your battery in good condition and your device up and running.


- Live charging measurement in mA (milliampere).

- Battery discharging current in mA (milliampere).

- Auto refresh of values constantly.

- Capable for powerbanks.

- Capable for solar charger calibration in order to get the maximum charging rate.

- Doesn't drain your battery! Very important. You will see no impact in your battery life, instead of other apps.

- Battery temperature.

- Battery level and status.

- Battery voltage and technology.

- Simple in usage. No need of any settings. It just works.

- No special rights needed.


- If the cable is not a quality one can result to slow charging.


Charger Tester is a very hardware related app. It Doesn't work on all devices. Before you buy the adFree version beware that it may not work on your next device or on your other devices. Best practice is to use the free version and if you are satisfied proceed with the adFree version. Thank you.


-Works great at LG devices. I ve tested many models.

- Nexus 5, nexus 6

- Moto g

- HTC m9

- Samsung galaxy s4

- Samsung galaxy s5

- Samsung galaxy s6 

App ChangeLog

App Screens

Charger Tester (ampere meter) App Screen 1Charger Tester (ampere meter) App Screen 2Charger Tester (ampere meter) App Screen 3Charger Tester (ampere meter) App Screen 4Charger Tester (ampere meter) App Screen 5Charger Tester (ampere meter) App Screen 6Charger Tester (ampere meter) App Screen 7Charger Tester (ampere meter) App Screen 8Charger Tester (ampere meter) App Screen 9Charger Tester (ampere meter) App Screen 10


requires following permissions on your android device.

view network connections
Allows the app to view information about network connections such as which networks exist and are connected.

full network access
Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

draw over other apps
Allows the app to draw on top of other applications or parts of the user interface. They may interfere with your use of the interface in any application, or change what you think you are seeing in other applications.

prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.

In-App billing
In-app Billing on Google Play provides a straightforward, simple interface for sending In-app Billing requests and managing In-app Billing transactions using Google Play.

receive data from Internet
Allows apps to accept cloud to device messages sent by the app's service. Using this service will incur data usage. Malicious apps could cause excess data usage.

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. jason-avatar

    5/5 Stars IT WORKS! Simple & easy to understand. Light weight, only 1.8mb. Ads are reasonable and not obnoxious. On Simple Mode, this app shows the mA current coming from your charger. Through elimination, you can identify if your charger or wire is working properly. You can also determine if a charger is delivering it's rated output. On Advanced Mode, there are several other technical stuff one may find interesting. Kudos to the developer!

  2. Nilesh Shirke-avatar

    loved this app on my old androids and when on this Samsung android . Helps me detects any faulty chargers in work place . it's a must for people who travel a lot or have to use different chargers for their phones . ps you need to at least know how much amp your phone needs and how much the actual charger or the charging usb wire cable is reliable. rest is upon your calculations

  3. Dylan Smith-avatar

    Think you should define application more, definatly inside application. Wasn't sure that it was a mah reading was mahs ontop of system uses aka power toward current charge. If that's what it is. Maybe expand to all sorts of "labeled" mah readings... I'll give you a good example something battery realated. I need comparable current total mahs to next educate myself from guess that mah capacity is best at current rating and its alterations with 3rd party app that changes battery max charge intake

  4. SAMMY WEKESA-avatar

    Sincerely It's the best app for me and tells me the best charger for my phone by mA, very accurate, good job.

  5. John Thomas-avatar

    Great app, if you buy a cheap fast charge wireless charger this will let you know if its actually a genuine fast charger or a fake.

  6. Marty Charon-avatar

    You'll be surprised by how gutless some of your chargers are and might buy better ones. This app is easy to use and read and provides the info I need about how the battery and charger are doing. (However, a minor bug afflicts the current version, causing both the drainage and charge rates to display negative numbers; the charging amperage should be positive. I tested on two separate devices. Don't let that deter you though. It doesn't effect the accuracy usefulness of the app.)

  7. Thundeon-avatar

    I used this app awhile back and it worked really well with a cheap Walmart phone that I had. But a few years later I come back to this app with the Galaxy S10 and it has told me that I had a negative charge when I was charging. At the same time I saw my battery percentage go up. so my thought was that the app was measuring wrong. Please fixed this! Update: Wait... I think this might have helped me actually now that I have plugged it into an actual wall outlet instead of a battery bank... Thanks!

  8. Salman Saleem-avatar

    This is the best, I had one application like this in iPhone and it used to check the charging through the time it takes to charge 1%, but if I had a charger which doesn't charge properly that app was useless. Through this app now it shows me that some charger do 5-200mah charging, and I saw one bad review on this app which tells that it showed no difference in three different chargers, I don't agree with this review.

  9. god xx why-avatar

    There not to many ads like other but still a little to many for my liking

  10. Tony Vangel-avatar

    2.5 years later and I'm still loving this app. Its proven to the best out of the bunch l f for me. It's accurate to the letter. The developer is super kind and dedicated. He answers every single one of my questions, and fast It's not fair for others to leave a 1star without dropping him a line too see if he can This is a 5 start app. Ok some some may not like it that's fine, wow what you don't like I don't mean to be rude

  11. Slavic Karalash-avatar

    Slavic Karalash


    Love this app works great! Great for testing what bottlenecks your charging. (Using OnePlus 6 phone with a USB c charging port)

  12. Jayaraman Rajui-avatar

    Jayaraman Rajui


    seven stars .very nice .captures current flow in real time of charging. alert of sufficient current or low warning.not became popular as there is missi g of prefix battery in app's name. salute effort of developer in giving unobtrusive app window. probable charging time is my feature request.

  13. Mike Savad-avatar

    this program didn't work. i compared 3 different charging methods, and the voltage was the same on all of them, there was actually nothing in particular that told me what kind of charger i was using. when i plugged in a normal usb, it read almost zero. everything else gave me the same readings.

  14. Edge 12-avatar

    Nice and simple app with all the relevant information that you need which I think is a great tool to check what your charger output really is. Please do include a widget as well as the ability to swipe through tabs on your next updates.

  15. Imio Mismail-avatar

    Excellent app...and great ads with sound. Maybe next time put ads from porno sites so that when i have meeting with top management your app will go off with a blast for everbody to hear the moaning...surely the my management would like it....stupid

  16. Vikram Verma-avatar

    This App works well and lets you know the actual charger output current. I tried it with Original Nokia and Jio Phone Chargers and a Local Charger. This App is giving approximately correct readings. You can trust this App.

  17. Jackson Tenor-avatar

    In a minute of use you get half a dozen ads. Better apps exist. I have no problem with ads, but this is too intrusive

  18. Roderic Bickerton-avatar

    Roderic Bickerton


    works fine but - indicates charging and no symbol indicates discharge. should be "+" for charge and "-" for discharge. Retired elecrtonics engineer.

  19. digvvijay wable-avatar

    digvvijay wable


    Super app....this is better than "ampere"app. It helped me diagnose the problem... whether it was in charging cable , adaptor, phone jack

  20. Gideon Okyere Darko-avatar

    Gideon Okyere Darko


    Great app but I want it to sound an alarm when fake charger is detected or insufficient current is realized.

  21. Joe Younger-avatar

    Easy to understand and use, and very accurate, too. Highly recommend others give it a try.

  22. Sai Mahidhar-avatar

    Really helps me a lot sometimes i use third party cheap chargers.... I can check if the charger is working properly and how much current is my phone is getting. Thanks

  23. Andrew Diamond-avatar

    Fullscreen adds. Wrong values are displayed

  24. Dave none-avatar

    Not impressed. plugged in 3 well known chargers and 2 cheap ones and the rates were all over the road! I'll cut a USB cable and use a meter.

  25. Al Montasir Ramim-avatar

    Al Montasir Ramim


    Thanks you developer, you did the right thing which I have been searching for, but it would be nice if you add an option to change widget's size to smaller. Thanks in advance

  26. Kk 24-avatar

    Best one for me.. i would definitely suggest to install and use it atleast one time... you won't uninstall it i could bet on it... nice experience..

  27. Bruce Macintosh-avatar

    Bruce Macintosh


    Thanks useful app, I confirmed my phone does charge slower sometimes!

  28. Private Private-avatar

    Private Private


    Showed nothing but "0 mA" the whole time, and forced my tablet into portrait mode. Useless and aggravating.

  29. keval bhoi-avatar

    very essential if you eant to compare cables and adapters with different cables

  30. Bayu Gondokusumo-avatar

    Bayu Gondokusumo


    Good app to test the charging process. Recommended.

  31. Bilal Haroon-avatar

    Best App For Charger Testing . Excellent Performance on Hawaei Phones but not working on Lenovo Phones.

  32. relf obert rebosura-avatar

    relf obert rebosura


    It works on my phone thanks for the app and I am hoping that in the near future this app will lmprove more. To gave you 5 stars.

  33. louis noway-avatar

    never use shitte cord or block again it just works a default app for most people i know great job nailed it

  34. shubham verma-avatar

    Really this one of the most useful app to detect the fault of charge ....

  35. Experimental Ifti-avatar

    Experimental Ifti


    It really works and charges phone faster.

  36. Florin Ionescu-avatar

    Works great on my phone, Crosscall Trekker, nice work.

  37. Roger King-avatar

    Vivo Y83 user. It is a good app. But doesn't show mA. Please solve this problem

  38. Yusuf Khan-avatar

    very accurate readings. similar to 'Ampere' app.

  39. Zack Post-avatar

    with such wide reading fluctuations of current mA while testing USB cords its hard to say if cords are good or bad, or if the app is incorrectly measureing?

  40. Steven-avatar

    Just what i was looking for works great helped me with figuring out broken cables and chargers

  41. LB Pramono-avatar

    Finally I found the problem is my cable not my charger using this app...

  42. Teddy LEO-avatar

    simple, easy, useful

  43. Serhiy Davydovych-avatar

    Serhiy Davydovych


    I was changed batterry from standart for my phone 2560 mA to 3060 mA, but program didn't detected this - for my opinion this pgramm is fakе.

  44. SA ZA-avatar

    There is no easy way to stop its badge. I have to uninstalled it.

  45. Andrew Cromarty-avatar

    Andrew Cromarty


    Not all chargers are what they claim to be, and this app helps sort the naff ones out

  46. Greg Zeng-avatar

    Needs a widget to show on the active screen. Uninstalled it.

  47. gaurav sonar-avatar

    bad apps not working proper without charger show voult

  48. Big_Soon_48 kg -Thin Soon-avatar

    Big_Soon_48 kg -Thin Soon


    A fake apps, even u r charging, will appear discharged, fake

  49. Green Energy-avatar

    does nothing but display ads

  50. It creates 19-avatar

    It can't say right amp

  51. Andro FuN-avatar

    Works fine on my Z Play.

  52. Jeremiah Monet-avatar

    worked for me. Samsung Galaxy note 8

  53. mad sc-avatar

    shows minus (value) charging on Redmi 4x no matter charger or cable.

  54. suresh sah-avatar

    Tooo many annoying ads please don't waist your time

  55. Ezekiel Marshall-avatar

    Ezekiel Marshall


    Simple but effective

  56. Theone Fighters-avatar

    Theone Fighters


    Im using for last 8 months, nic app

  57. Rajesh Prj-avatar

    Perfect show bettery temperature

  58. Oreo Jay-avatar

    Good But Lacks Interface

  59. ANGELOU-avatar

    This app is very accurate!!!

  60. Hassãn khan-avatar

    works on my Motorola Droid Maxx

  61. Pritam Sarkar-avatar

    This app is too good compare to other app

  62. Jeff Kubel-avatar

    Contains fraudulent ads.

  63. Nadeem Ali-avatar

    Fake app Not working

  64. jesvin tharshan-avatar

    jesvin tharshan


    Perfect 👌 app which denotes power.

  65. Stanley Ian Escaros-avatar

    Stanley Ian Escaros


    Good app. Nice work

  66. A Google user-avatar

    my phone so charging but not improve

  67. Wladimir Avelino-avatar

    Wladimir Avelino


    Not working properly

  68. albusins-avatar

    Atleast, Easy and better than others

  69. Gourav Mishra-avatar

    It does not work on my mobile

  70. A Google user-avatar

    Not working Lenovo k8

  71. Farhan Ansari-avatar

    y amp show with the minus sign

  72. PUBG Mobile-avatar

    Superb app.... Thanks Google

  73. Aman Choubey-avatar

    best app of the year should be go to this

  74. saaria Muneer-avatar

    This app doesn't work 😡😡😠

  75. A Google user-avatar

    well it does something, more than other apps

  76. Mohammad Muzammil-avatar

    Mohammad Muzammil


    My device is not showing ma value please solve this problem

  77. Audible Suno-avatar

    Very nice app

  78. maoz husnain-avatar

    When no charge connect current shows -316 what its meaning

  79. Alycen Hareas-avatar

    All over the street like the developers.

  80. S raj-avatar

    Please play store remove it

  81. MA AM-avatar

    like this app-only one i've ever used....

  82. Henry GREY-avatar

    Difficult to comprehend.

  83. A Google user-avatar

    It doesnt do what its suppose to do.

  84. Bear BearBear NERD FUN!-avatar

    Bear BearBear NERD FUN!


    It's ok it works

  85. Noah TJ-avatar

    Works very well

  86. Hakob Sargsyan-avatar

    Why is that saying it's 0 mA?

  87. Amdat sible-avatar

    supr im dist my carger and im show my charger fins and im by new carger and im now happy thanks developer

  88. John M-avatar

    Very good job!!

  89. A Google user-avatar

    a lot of publicity

  90. georgi lengarski-avatar

    georgi lengarski


    Does not work.

  91. Hammad Rajpoot-avatar

    Best and enough

  92. Anith Chitrakar-avatar

    Anith Chitrakar


    Just do it in instrol

  93. rahul Khanna-avatar

    this is the real app

  94. MUHAMMAD ZUBAIR-avatar



    very good app i like it

  95. Mr.ActionGal101-avatar



    I like the widget

  96. A Google user-avatar

    Did not work poperley

  97. John Navarro-avatar

    What does negative mAh means?

  98. vikkie ogbada-avatar

    it's not showing value of mah

  99. Lakhveer Singh Khalsa-avatar

    Lakhveer Singh Khalsa


    not working. honor 9N

  100. rosh kevin-avatar

    Actual value is shown