Read this before buying USB charging cables

You may sometimes notice that some USB cables are available for very cheap price and then some are well priced. But when you buy the cheap one thinking you've saved yourself some cash and plug your phone for charging and notice well it's hardly charging.

It's a common problem with USB cables. Why is that? what's the difference? How to purchase a decent USB cable?

For that you need to understand how current is passed through a wire.

1. A wire needs to be a good conductor (duh) meaning it should have minimum resistance. Resistance will cause the charge to be lost and also generate heat which will affect the life of the cable

2. The cable needs to be of lower gauge meaning it should have larger diameter. Because it can allow more current to pass through it. Gauge is indicated by number

USB cables have two set of wires each for data and power. Now these cheap cables are in 28/28 configuration means which will not allow more than 500mah to pass. These are just for data transfer and won't charge your phone faster even you've got 2amp charger

Solution?
Look for 28/24 gauge cable these are 60% larger so it can allow current transfer upto 2 Ampere. Many companies don't list the gauge on their spec sheet only thing they mention is the length. Some cables have gauge engraved on it.