Ampere app tells you the juicing quality from one phone charger or cable to the next

Ampere app tells you the juicing quality from one phone charger or cable to the next
With the advent of fast charging technologies from almost all major manufacturers, and from chip makers themselves, the quality of the bundled cell phone chargers and cables is starting to become more and more important. Oppo's VOOC rapid charging tech, for instance, bundles a juicer with the breathtaking 5A output, which would probably make other models emit smoke from their motherboards.

How do we rate the quality of cables and chargers from one unit to the next even if they have the same output rating, though? Most of us aren't homegrown electrical engineers with off-the-shelf equipment, after all.

Sony, for instance, sometimes bundles eco-friendly 0.8A chargers with its phones, which top up slowly but surely, while Samsung and some others offer 2A, and even beyond rapid chargers.

Enter Ampere - a new app that takes advantage of Android 5.0 Lollipop's built-in Project Volta APIs to tell you the exact difference in charging quality between two wall chargers and/or cables. The app will even out the current oscillations, and show you the real average throughput of the charger/cable combo you are using at the moment in a few seconds. 

This way you can test if that third party charger, or the one you borrowed from a friend, can really do the deed properly, and stick with the one that charges your phone best. 

Needless to say, you have to have Lollipop on your handset, and the app is reported to have issues with a few phone models, like the HTC One line, or some LG G3 versions, so check the developers description before you plug your phone in, and wait for Ampere to return the benchmark current.

Developer: BraintrappDownload: Android
Category: UtilitiesPrice: Free



1. DanteTheGreat

Posts: 67; Member since: Jul 31, 2014

My Sony charger is 1.5 A. You guys should realise it is region dependent.

2. buccob

Posts: 2968; Member since: Jun 19, 2012

Yes, mine is also a Sony 1.5 A charger... it even camer with a USB Host cable. I bought it on a Sony store at New Zealand, unlocked but packaged for Telekom.

3. Doakie

Posts: 2478; Member since: May 06, 2009

Not compatible with my OnePlus One or my 2013 Moto X. LAME.

4. Augustine

Posts: 1043; Member since: Sep 28, 2013

Its the charging circuit that manages the charging of the battery. If the charger is capable of more than the circuit can handle, it's over speced; if it's capable of less, the charging circuit will decrease the current requirements and take longer to charge the battery.

5. andriodfanboy1

Posts: 168; Member since: Jul 22, 2014

I use samsung galaxy charging info app which only provide references ma , average ma and max which are coming from a charger . Which helped me getting buying original charger

6. mixedfish

Posts: 1555; Member since: Nov 17, 2013

I use chargers with less than 1A, I don't want to destroy my battery.

7. wkm001

Posts: 145; Member since: Feb 04, 2014

I can't find the article, but it said the single worst thing you can do is regularly run your battery below 5 or 10 percent. I exclusively use a 2A charger everywhere and get great battery life.

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