S4 only gains charge when switched off? HELP

Joe Kane2

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Jul 29, 2015
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Hi all,

My s4 only seems to gain charge when I switch it off. when its on and charging, the battery % stays the same or even drops! When im using it while its charging the % drops as well. Ive just replaced the battery with a new one and still having the problem. also have tried different chargers.

Any advise would be grateful

thanks
 

Joe Kane2

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Ive also done a master reset still no luck. I downloaded a battery monitor app and it confirms that there is more power being discharged when I have it plugged in. Someone out there must of had a similar problem, maybe hardware??
 

extraclass

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Feb 13, 2011
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It sounds like a charger problem or a cable problem. Be sure the lightning bolt is present in the battery icon. If not try another charger or cable then try another battery. The battery should last a couple days at least with the phone off! How old is the battery, after about 18 months the battery should be suspect! Do a search in this forum for "battery" and you will find others have had similar problems and how to solve the problem!
 

Joe Kane2

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I have tried 3 different charges/ cable, changed the battery to a brand new one. According to the battery monitor im losing -342ma every minute whilst on charge. it also has the lightning bolt to indicate charge. any idea?
 
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extraclass

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Try another charger or usb cable. Not all chargers work with all cables or all phones! Do you see the lightning bolt in the battery icon? That is a good indication your battery is charging properly!

Your charger should be rated at 2 A or 2000 Ma. A usb port on a computer will not be strong enough to charge your phone!
 

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