Android: A faulty charger can cause your smartphone a world of hurt. If you're running Lollipop on your phone, free app Ampere tests your charger's output.
Ampere tells you how well your battery is charging and if there's a problem. It doesn't work on all phones, but you can see the compatible list on its Google Play page — I tested it on a Nexus 5. It found one old charger that wasn't pushing enough of a charge, and all the rest tested fine.
Ampere (Free, In-App purchase removes ads) [Google Play via WonderHowTo]
Comments
Finally. I regularly find dodgy cables leave my phone at only 80% after a night of charging. This will help me throw out some of those rubbish cables
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