How many doors do PowerBox charging lockers come in?

Four, eight, ten and sixteen doors, each available with a flat or sloping top. Compartment sizes are 300 × 300 mm, 300 × 450 mm, 380 × 450 mm and 450 × 450 mm.

Which size is best value per compartment?

The 8-door bank. At £987.31 for the full 3-pin mains plus USB-A and USB-C specification it costs only £11.59 more than the 4-door at £975.72 and gives twice the compartments — £123.41 per compartment against £243.93. The cheapest compartment in the range is the 16-door mains-only bank at £66.17.

How much does a sloping top add?

A flat £24.76–£24.78 regardless of bank size, so it works out at 3.0% on a 10-door mains unit and 1.4% on a 16-door mains-plus-USB unit. A sloping top stops bags and cups being left on the roof of the locker, which matters most in corridors and reception areas.

What colours are available?

Three carcass colours — black, silver and white — and seven door colours: black, blue, green, red, silver, white and yellow. All are powder-coated over cold-rolled mild steel.

Does each compartment charge independently?

Yes. Every compartment has its own charging outlet behind its own locked door, so a device charges without sharing a socket or leaving a charger out in the open.

Do charging lockers need an electrician to install?

The locker bank needs a mains supply at its installed position, so a competent electrician should make the final connection and the installation should be inspected and tested to BS 7671 like any other fixed electrical equipment. Plan the socket position before the lockers arrive — moving a bank after installation is the expensive part.

When should I choose mains over USB charging?

Where people bring devices that ship with a standard UK plug rather than a cable — full laptops, cameras, radios, test equipment and power tools. A 3-pin BS 1363 socket in each compartment lets the user charge on their own charger. Mains-only banks are also the cheapest per compartment in the range, at £66.17 on a 16-door flat-top unit.

UK Mains Charging Lockers

UK mains charging lockers give each compartment its own 3-pin (BS 1363) socket, so a device charges on its own plug behind a locked door. They're the right choice where people bring full laptops, cameras, power tools or anything that ships with a standard UK charger rather than a USB cable. Every locker here is a Probe PowerBox locker wired for mains charging.

What's in this range

Supplied as 4, 8, 10 and 16-door banks with a choice of flat or sloping top. Some models offer 3-pin mains on its own; others combine the mains socket with USB-A and USB-C outlets so a single bank covers laptops on their own chargers alongside phones and tablets on cable. Construction is the standard Probe cold-rolled mild-steel locker — powder-coated, UK-made — matching the rest of our metal lockers.

Choosing mains charging lockers

What's being charged — full laptops, cameras and mains-only kit need a 3-pin socket; phones and tablets are usually happier on USB.
Mixed fleets — pick a combined mains + USB-A + USB-C model so one bank serves every device type.
Compartment size — 10-door bays suit laptops and larger devices; 16-door suits phones and compact items.
Installation — mains lockers need a fused supply and should be installed and periodically inspected by a competent electrician.

For help deciding between mains and USB charging, see our charging lockers buying guide.

Door count is the price decision, not the charging type

Across the whole PowerBox range the cost per lockable compartment falls sharply as the bank gets bigger, and the step from four doors to eight is the one worth knowing about:

Bank	Charging	From	Per compartment
4 door, flat top	3-pin mains + USB-A + USB-C	£975.72	£243.93
8 door, flat top	3-pin mains + USB-A + USB-C	£987.31	£123.41
10 door, flat top	3-pin mains + USB-A + USB-C	£1,164.50	£116.45
16 door, flat top	3-pin mains + USB-A + USB-C	£1,770.61	£110.66
10 door, flat top	3-pin mains only	£838.96	£83.90
16 door, flat top	3-pin mains only	£1,058.65	£66.17

The four-door bank costs £11.59 less than the eight-door and gives you half the compartments. Unless the alcove genuinely will not take the taller unit, the eight-door is the better buy at almost identical money. Beyond that the curve flattens: the sixteen-door reaches £110.66 per compartment on the full mains-plus-USB specification, and a mains-only 16-door bank is the cheapest compartment in the range at £66.17.

The sloping top is a flat charge, not a percentage. It adds £24.76–£24.78 whatever the size of the bank — so it costs 3.0% on a 10-door mains unit and only 1.4% on a 16-door mains-plus-USB unit. If you want a sloping top to stop items being left on the roof, it gets proportionally cheaper the bigger the bank you buy.

Every bank shares the same Probe specification: cold-rolled mild steel, powder-coated, three carcass colours (black, silver, white) and seven door colours (black, blue, green, red, silver, white, yellow), in 300 × 300, 300 × 450, 380 × 450 and 450 × 450 mm compartment sizes. See the full charging lockers range or the wider metal lockers collection.