Common Reasons Your Phone Is Not Charging Properly
From lint in the port to a worn cable, here are the usual causes of slow or unreliable charging and what you can safely check yourself.
When Should You Replace Your Smartphone Battery?
The signs that a phone battery is wearing out, what battery health readings mean, and when replacement makes sense.
Lithium-ion batteries wear with use. Every charge cycle reduces their capacity slightly, and after a few years most phones hold noticeably less charge than when new. Replacing the battery is often the most cost-effective way to extend a phone's life.
Signs your battery is wearing out
- The phone no longer lasts a normal day on a full charge
- It shuts down suddenly at 15–30% charge
- The percentage jumps around, for example from 40% to 10%
- The phone feels warm during light use or while charging
- Performance drops when the battery is low
Signs that need attention right away
A swollen battery can lift the back panel or push the screen out of the frame. Stop charging the device, avoid pressing on it, and bring it in. Swollen batteries should be handled by a technician.
Understanding battery health readings
Many phones show an estimated battery health or capacity figure in settings or a diagnostics app. These are estimates; they are useful for spotting a trend, but a proper diagnostic check gives a clearer picture.
Battery or something else?
Fast drain is not always the battery. A misbehaving app, poor network signal or a charging-port fault can produce similar symptoms. That is why we test before recommending a replacement.
Why use a genuine battery?
Genuine batteries are built for your phone's charging system and fit its enclosure exactly. Non-genuine cells may have lower real capacity, inaccurate charge reporting, or weaker safety protection.
This article is general guidance. For advice on your specific device, contact us or bring it in for inspection.