[AC Question]

If I charge my note 4 with a charger other than the one that was supplied with my device will it harm the battery? I left my charger at work and have a charger from an old device but I am afraid to use it.

[Rukbat]

The only thing that will happen is if the charger can't supply as much current as the phone tries to draw, it'll take longer to charge. All the charger has to have is a `5 Volt output (it's on the label, but it's usually pretty tiny) - up to about 5.2 volts is okay - and a microUSB connector. Other than the charging time, chargers are pretty much interchangeable.