USB-C or barrel chargers for resale: what customers ask for

Two kinds of customer

Charger customers fall into two groups. The first has a laptop from roughly 2012 to 2018, and the refurbished market is full of them: Latitudes, EliteBooks, ThinkPads and consumer models that charge through a round or rectangular barrel plug. The second has a newer machine that charges over USB-C, or wants one charger that will do a laptop and a phone.

Both groups are worth serving, and the common mistake is to treat USB-C as the replacement for the barrel range while so many barrel laptops are still in daily use. A counter that only stocks USB-C turns away the customer with a perfectly good older laptop, who is often the one most likely to pay for a replacement rather than a new machine.

What USB-C customers ask

Will it charge my phone as well? Yes. A USB Power Delivery adapter offers several voltages and each device asks for what it needs, so a laptop adapter charges a phone safely, at the speed the phone accepts.

Will a 45W one do? It depends on the laptop. Many thin laptops are happy on 45W, but most 14 and 15-inch office laptops expect 65W, and below their rating they charge slowly, show a warning or charge only when switched off. When in doubt, sell 65W.

Does it have to be the same brand? Usually not for charging: most USB-C laptops charge from any Power Delivery adapter with enough watts at 20V. Some machines charge more slowly or show a message with another brand's adapter, so when a customer wants certainty, match the brand.

Can I use my old cable? Only if it is rated for the power. An ordinary USB-C cable carries 3A, which is 60W at most; a 90W adapter needs a 5A cable to deliver its full output.

What barrel customers ask

Is this the right one? This is the question that causes wrong sales, so answer it from the laptop, not from memory. Ask the customer to bring the laptop or the old adapter, check the plug size and the centre pin, and read the voltage and wattage from the label. Our connector guide covers how to tell the tips apart.

Why does my laptop say the adapter is not recognised? On Dell and HP machines this usually means a damaged centre pin or an adapter that cannot identify itself, and a new adapter of the right type fixes it. Can I use a bigger one? Yes, as long as the plug and voltage match: a higher wattage is safe, a lower one is not.

Will it work abroad? Almost every laptop adapter, barrel or USB-C, accepts mains from 100V to 240V, so it works in most countries without a converter. Only the mains lead changes, which matters to exporters and to customers who travel: sell the adapter with the lead for the country it is going to.

Margins, returns and shelf space

A USB-C adapter costs more per unit than a barrel adapter of the same wattage, but one 65W USB-C line covers laptops from several brands. That means fewer lines on the shelf, fewer wrong sales and fewer returns from a customer who bought the wrong plug.

Barrel adapters are cheaper and still sell in volume, but they come in many more variants, and every variant is a chance to hand over the wrong one. To keep barrel returns down, check the socket at the counter before every sale.

Label the shelf by connector and wattage rather than by brand. A customer who knows their laptop is a Dell does not know whether it takes the small pin or the big round pin, but a labelled shelf beside a photo of each socket lets them, or a new member of staff, point to the right one in seconds.

Splitting the stock

Let your own sales decide the split, and review it every few months, because it moves as laptops age. A counter that serves students, families and older office fleets will sell more barrel adapters for a long while yet. One near offices that have recently replaced their laptops will see USB-C requests climb.

If you are starting from nothing, hold 65W in both formats, add 90W USB-C for customers with larger machines, and keep the barrel range to the connectors you are actually asked for. Our connector and wattage guides help you choose which ones.

Mains leads and what is in the box

Our charger packs contain adapters only, with no mains cables. Brick-style adapters, barrel or USB-C, need a separate mains lead, and the inlet on the brick tells you which: three round holes in a clover-leaf shape take a clover lead, two in a figure-of-eight take a figure-of-eight lead. Most laptop bricks take the clover lead, so stock UK clover cables alongside every charger order.

Selling the lead and adapter together, priced as one, saves the customer a second trip and saves you the question of why their new charger will not plug into the wall.