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Spare charger · 2.5mm pin pitch · USB-A

2-Pin 2.5mm Magnetic Charging Cable (2-Pack)

Two magnetic USB-A cables with a narrow 2.5mm gap between the pins, made for the small-contact watches that a wider universal charger slips off.

  • Pin spacing2.5mm (0.098in) centre to centre
  • PlugUSB Type-A
  • Pack2 cables
  • ContactsGold-plated copper core
  • ProtectionOver-current and over-voltage
Great if you
  • Your watch has two charging dots 2.5mm apart
  • You own a Popglory P22, AGPTEK LW31, GRV N29 or another named model
  • You want one cable at home and a second in the gym bag
Skip it if you
  • Your watch pins sit 2.84mm, 4mm or 7.62mm apart: those need a different cable
  • You only have USB-C ports and no adapter
Strap it on

Measure 2.5mm between your watch pins before anything else

Every spare charger for a budget watch hinges on a single measurement, the spacing of the two metal dots on the case back. This Parsonver cable is built for a 2.5mm gap, which is narrower than the common 4mm and 2.84mm heads, so it suits small watches with tightly spaced contacts.

Getting that number right matters more than the brand name on the box. A head that is even a fraction too wide will sit on one pin and miss the other, and the watch simply never starts charging. Two minutes with a ruler saves a return trip.

How to check your own watch:

  1. Flip the watch over and find the two small gold or silver dots near the sensor.
  2. Lay a millimetre ruler across them, or use a digital caliper if one is in the drawer.
  3. Measure from the centre of one dot to the centre of the other, not edge to edge.
  4. If it reads 2.5mm, or 0.098 inches, this cable is the match.

The maker names a long run of watches that use this spacing. They include:

  • Popglory P22, Kalinco P22 and Donerton P22 in the 1.4-inch size
  • AGPTEK LW31, plus Parsonver SPROD1 (SR1), LW45 and LW77
  • GRV ZOSKVEE N29, LUOBA TOZDTO i13 and Iaret i18
  • Wwzzey P42B, Ypaddbu P58, Mingtawn Mingwear H76, Nemheng I22 and Pupuskyer P25

Model codes repeat across brands, and a P22 from one maker is not always the same body as a P22 from another. Treat the name list as a shortcut and the ruler as the final word.

Spec sheet

Every number on the box

SpecValue
ModelParsonver SCW25
Connector2-pin magnetic charging head
Pin spacing2.5mm (0.098in), measured centre to centre
PlugUSB Type-A
Cables in the pack2
Housing materialABS and PVC
Contact pinsGold-plated copper core
SafetyBuilt-in over-current and over-voltage protection
AttachmentMagnetic, self-aligning
Named watchesParsonver SPROD1 (SR1), LW45, LW77, AGPTEK LW31, Popglory P22, CanMixs P2
More named watchesKalinco P22, Donerton P22 (1.4-inch), GRV ZOSKVEE N29, LUOBA TOZDTO i13, Iaret i18
Also namedWZWNEER DXPICR Y20GT, Wwzzey P42B, Ypaddbu P58, Mingtawn Mingwear H76, Nemheng I22, Pupuskyer P25
WeightAbout 0.01 kg
ColourBlack
Water resistanceNone: keep the cable dry
In the boxTwo magnetic charging cables

Keep one cable by the bed and one in the gym bag

The 2-pack is the quiet win here. A watch only helps a fitness habit while it is on your wrist, and the most common reason it comes off for a whole day is a charger left in the wrong place.

Split the pair up on day one. One cable lives where you charge overnight or during a morning shower, and the other travels in a gym bag, desk drawer or suitcase. The watch then gets topped up wherever you happen to be, and the step streak does not break over a lost cable.

Most small watches settle into this weekly charging rhythm:

  • Pick a fixed slot, such as Sunday evening while you plan the week's workouts.
  • Top up to full in one sitting rather than several short bursts.
  • Charge again mid-week only if the battery icon drops to its last bar before a long session.
  • Keep the second cable packed for trips, so a weekend away still gets logged.

Both cables end in a standard USB Type-A plug. That fits a laptop port, a phone wall adapter with a USB-A socket, many car ports and most power banks. Newer laptops with only USB-C sockets need a small adapter.

Habit hack: charge during a routine you never skip, such as a shower or breakfast. Tying the top-up to an existing habit means the watch is back on your wrist before the first steps of the day.

Neither cable comes with a wall plug, so use a phone adapter you already own. A basic low-power USB adapter is plenty for a small watch battery.

In the line-up

Where it stands in the line-up

FitPro smart watch models by type, September 2026. Highlighted: 2-Pin 2.5mm Magnetic Charging Cable.

Snap the magnet on and start charging clean

The head uses magnets to pull itself into place over the watch contacts. When the spacing matches, it lines up with a small click and the screen shows a charging icon within a few seconds.

The contact pins have a gold-plated copper core, which resists tarnish and gives a steady connection. The housing is ABS plastic with a PVC-sheathed cable, and protection against excess current and voltage is built in to guard the watch battery.

Follow this order for a clean start every time:

  1. Dry the watch completely after a sweaty session or a hand wash.
  2. Wipe the two watch contacts and the cable pins with a dry cloth.
  3. Plug the USB-A end into power first.
  4. Bring the magnetic head close and let it snap onto the dots.
  5. Check for the charging icon, then leave the watch lying flat.

If nothing happens, flip the head round. Some small watches only accept current one way, and the magnet can hold the head in the reversed position without making contact.

When it still refuses to charge

Sweat and skin oil leave a thin film on the contacts over a few weeks. Dab the dots with a cotton bud lightly wetted with isopropyl alcohol, and a completely flat battery can take several minutes before the charging icon appears. The charger troubleshooting guide walks through the remaining fixes.

Keep the magnetic head away from metal clutter in a bag. Loose paperclips or coins can stick to it, and a stray metal fragment between head and watch stops the charge.

Swap in

Other watches for the same goal

For ID205-style watches1 2-Pin 2.84mm Magnetic Charging Cable
2-Pin 2.84mm Magnetic Charging Cable
The Acediar 2-pack uses a 2.84mm pin gap for ID205L, SW021, SW023 and similar watches.
  • 2.84mm pin pitch · 2-pack
  • USB-A plug, magnetic snap-on
  • Spare for desk, bag or car
Strap it on
For FitCloudPro watches3 FitCloudPro Magnetic Charging Cable
FitCloudPro Magnetic Charging Cable
The Fit Cloud Pro pair ships as model A and model B with opposite polarity, so one of the two fits.
  • 2.8mm pin pitch · 2-pack
  • USB-A plug, magnetic snap-on
  • Spare for desk, bag or car
Strap it on

Choose 2.5mm or a wider pin pitch for your watch

Small magnetic chargers look almost identical in photos, so the pin spacing is the only reliable way to tell them apart. The 2.5mm Parsonver pair sits at the narrow end of the common sizes.

CablePin spacingPackTypical watches
Parsonver 2-pin2.5mm2 cables, USB-AP22, LW31, N29, i13
Acediar 2-pin2.84mm2 cablesID205L, SW021, SW023
Fit Cloud Pro cable2.8mm2 cables, model A and BFitCloudPro watches
Aliwisdom universal4mm1 cable, USB-A3.8mm to 4.2mm watches

The 2.84mm Acediar pair fits the ID205-style watches, while the 4mm universal cable covers the wide-spaced heads found on many Da Fit and GloryFit models. The bands and spares guide lists the strap widths that go with each family.

Before ordering, run through this quick list:

  • Measured spacing is 2.5mm, centre to centre
  • Your charging port is USB-A, or you have an adapter
  • The watch contacts are flat dots, not a clip-on cradle
  • You are happy with a plain cable and no wall plug

Make the pair last

Cables fail at the stress points, usually where the wire meets the magnetic head or the USB plug. Coil the cable loosely instead of wrapping it tight around a hand, and pull on the plug, never the wire, when unplugging. Store the head facing away from keys in a bag, since a bent contact pin is hard to fix.

With two cables in rotation, each one sees half the wear. If one does give out after a year of daily use, the spare keeps the watch running while you decide whether to reorder the same 2.5mm size.

If all four checks pass, the pair gives you two charging points for the cost of a small spare. That is a practical way to keep a daily step and sleep log unbroken for months.

Warm-up questions

Before you strap it on

How do I know my watch needs a 2.5mm charger?

Measure from the centre of one charging dot to the centre of the other. A reading of 2.5mm, or 0.098 inches, means this cable fits.

Does this cable fit the Popglory P22?

Yes, the maker names the Popglory P22, along with the Kalinco and Donerton P22 in the 1.4-inch size.

Is a wall adapter included?

No. The pack holds two cables with USB-A plugs, which work in a laptop port, a phone adapter or a power bank.

Why does the watch not charge when the magnet is attached?

Flip the head round, then clean both sets of contacts. A reversed head can stick magnetically without touching the pins.