What cable length suits a desk wireless charger compared with a bedside one?

Main answer · Wecent Editorial Team

Short answer: A desk charger usually works with a cable of about one metre, which reaches a wall socket or a power strip with little slack. A bedside charger often needs a longer cable of about one and a half to two metres because sockets are lower and further away. Many brands ship one length and sell the other.

What the cable has to do

It must reach from the charger to the power source without pulling the charger, or leaving a large loop that falls on the floor or snags. It also has to stay out of the way of hands, lamps and alarm clocks.

Desk use

• Sockets and power strips are normally within reach.
• A shorter cable looks neater and is less likely to tangle.
• Around one metre suits most desks.

Bedside use

• Sockets are often behind the bed or low on the wall.
• A longer cable avoids stretching the cable and tugging the charger off the table.
• A one-and-a-half to two metre cable is common.

Longer is not always better

Very long cables look untidy and, if poorly made, can drop voltage and slow charging. A thin cable at a long length can limit power more than a good one at a short length. Wireless chargers draw modest power, so this matters less than for laptop charging, but quality is still important.

What to specify

1. The length with a tolerance, measured from the end of the connector to the end of the strain relief.
2. The conductor size and the connector type.
3. A strain-relief and bend test that matches the use.
4. A cable that suits the charger’s rated input.

Options for the box

• Ship one standard length and offer the other as an accessory.
• Ship a short cable in the box and a longer one in a premium pack.
• Print the cable length on the pack so buyers know before buying.

Test with real furniture

Try the cable on a desk and a bedside table with real sockets. You will see quickly whether the length is right.

Think about the plug end too

A cable with a right-angle connector can sit flat behind a charger and look neater on a desk. A straight connector is fine if the cable leaves the charger at the back. Choose the shape that matches how the charger is used.

Where this answer says to confirm with Wecent, the detail is not published on the product page and has to come from the datasheet or the factory. General facts come from the regulators, standards bodies or device makers named in the text.