How to fix an Android phone that doesn’t charge (or discharges) when connected to a power source

It could be really confusing to see the charging sign on your
phone when connected to your charger only for your battery
percentage to remain at the same level for hours or in fact
drop steadily. If you’re a heavy user then you must have
encountered this on one or two occasions


) but that isn’t to say that light users are exempted from this
puzzling phenomenon.
Lets look at it from a less-techy perspective for a moment.
If you connect your charger (which is supposed to increase
battery levels) but the battery levels are dropping instead,
then it must either mean that the phone isn’t being charged at
all or the battery is being consumed faster than its being
charged. Now that we’ve established this, lets proceed.
Why is my Android phone discharging despite being
connected to a power source?

Common causes of this issue are:


Faulty power source: If you’re charging using a PC
(via USB cord) or from a faulty power source then
this is possible


Faulty USB port: A loose, cracked or broken phone
USB port could be a cause
Faulty charger: If the charger is faulty or not powerful
enough then you can expect something like this


Buggy ROM: If you flashed a custom ROM /
Firmware upgrade with power efficiency bugs then you
have another possible culprit


Heavy usage during charging: If you’re running
processor / battery intensive processes during charging
then you have another possible cause


Faulty battery: Some batteries have problems retaining
charge after extensive use



How do I fix an Android phone that doesn’t charge (or
discharges) when connected to power?


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Some fixes you should consider include:
Ensure the USB jack and USB port are making
firm contact
Try a different charger


Avoid heavy usage during charging
Consider changing the USB port if it looks loose,
cracked or damaged in any way


Try a different power source
.
Flash the stock ROM back to the phone

Consider using an external (like desktop) charger to be
sure the battery is OK

What can I do to prevent future occurrence?

Avoid over-charging your device

Avoid charging your device using a PC

Employ good battery management practices

Do not rotate the USB jack during charging or force
it into the USB port

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