Why is my phone not charging, and how do I fix it?

Is my phone at a charge limit, or is something broken?

An iPhone using Optimised Battery Charging can wait until it is needed before finishing past 80 per cent¹. Software might also limit charging above 80 per cent when the battery gets too warm⁸. iPhone 15 models and later can stop at a set charge limit as well, so check that setting first⁹. Apple's support page on charging was published December 12, 2025¹⁰. A cool iPhone parked at exactly 80 per cent is most likely doing what it was set to do.

Samsung phones have a stop of their own: a Samsung community answer says the Protect Battery slider limits charge to 85%, with steps written for Android 14 ONE UI 6^2,11. On Android 13, the same answer says, Battery Protection is checked in Device Care¹². The table below sets the 80 and 85 per cent stops side by side. A phone that halts at one of those exact numbers needs a settings change, not a new cable.

What our support tickets show about phones that won't charge

Of 566 support tickets that said a device would not charge, out of 39,368 tickets our support desk read, 413 also named the cable⁴. A plug or adapter came up in 85 of those support tickets, a software update in 36, the phone's charging port in 19, a phone case in 16, wireless charging in 14, and lint or dirt in 3⁴. The same 566 support tickets named an iPhone 167 times and an iPad 46 times¹⁴.

A program counted words in each support ticket's subject and first message, so those counts record what customers suspected, not what was wrong⁴. A brand that sells cables hears about cables, so 413 may say as much about worry as about fault. The port reads the other way: only 19 support tickets named it and 3 named lint or dirt⁴, yet a clean port is the cheapest fix to rule out. Rule out the settings and the port first, and replace the cable when it fails the checks below.

Which fixes should I try first?

Work through these in order and stop at the step that brings the charge back. The steps follow Apple's own advice for iPhone³, and the cable, plug and port checks suit any phone that charges by cable. Every step before the last one costs nothing.

• Check the charging cable and USB adaptor for breakage or bent prongs³.
• Remove any debris from the charging port, then plug the cable in firmly⁵.
• Swap in a cable and plug you know work, to tell a phone fault from a cable fault.
• Force restart an iPhone that still won't power on or shows a battery icon⁶.
• Book a service visit if the phone still won't power on or charge⁷.

When is a new cable the fix?

A new cable is the fix when the old one shows breakage³, or when a known good cable charges the phone and yours does not. Of the 5,700 reviews our customers left for the Titan Smart Cable from November 2018 to October 2025, one verified five star review from March 2021 says the braided cable the customer had before "broke at the phone c plug"^25,26.

The Titan Power Plus Cable Pro is the one to look at if your phone lives in a case. The cable's low profile 90° connector is designed to fit through most protective phone cases²⁷. A verified five star review of the Titan Smart Cable from May 2021 praises the "great grip at the connector"²⁸. The Cable Pro's page says a built-in chip regulates power flow to prevent overheating, overcharging and battery wear²⁹. The cable supports up to 100W on USB-C PD, and its page claims a charge of 50% in 20 minutes^15,20.

What should I check before buying a replacement?

Device compatibility was the question our support desk heard most about phones from 7 August to 5 November 2026, asked in 20 of the 1,149 conversations that named a phone³⁰. Match the ends to your phone and your plug first: the Titan Power Plus Cable Pro comes in USB-A or USB-C to USB-C or Lightning³¹. For a specific phone model, check the ends on the Cable Pro page. The plug matters as well, since a plug or adapter came up in 85 of those no charge support tickets⁴. The Titan PD Plug is the pairing the Cable Pro page names for full Power Delivery³².

Length decides whether the phone reaches the sofa or stays on the floor by the socket. The Titan Smart Cable comes in 4ft (1.2m), 6ft (1.8m) and 10ft (3.0m). Of the Titan Smart Cable PRO units our customers bought from August to October 2026, 53% were the 6ft (1.8m) length³³. One verified five star review from March 2021 found the extra length "extremely useful and a safety factor when charging the phone whilst in use"²⁶.