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Why cheap cables damage your phone
Cheap cables feel the same at first. Then the copper inside is too thin, so your phone pulls more current for longer to get the same charge. That extra heat and strain wear down the battery faster than you think.
A proper cable protects the small chip inside your phone that manages charging speed and safety.
Spot The Fake Cables
A certified cable carries a small mark near the connector. If a cable has no mark and cost almost nothing, treat it as a spare, not your daily charger.
A loose or wobbly connector is often the first sign a cable is failing, well before the wire inside gives up completely.
Most phones today charge fast only when the cable, the plug and the phone all agree on the same standard. A mismatched cable caps your speed at the slowest link in that chain, no matter how powerful the charger in the wall is. It's rarely the plug that lets you down, it's the cable.
Signs It's Time To Replace It
Loose connectors are the real giveaway. A good cable clicks into place and stays put. A cheap one wiggles, drops the connection, and forces your phone to restart the charge cycle again and again.
If your cable gets warm to the touch while charging, stop using it. That heat means the wiring inside cannot handle the load.
