Table of contents (6 sections)
About every other week, an RFQ lands in our inbox asking for a "magnetic 15W wireless car charger." It sounds specific. It isn't. The phrase quietly bundles three separate decisions, and buyers who use it usually mean one of them — sometimes two, occasionally a third they haven't thought about yet. When the meaning isn't pinned down, the wrong sample ships, the quote gets revised twice, and a one-day order turns into a one-week back-and-forth.
I'm Martin. We manufacture wireless car charger mounts in Guangzhou and quote this category daily, so we've learned to unpack "magnetic 15W" before we quote anything. This is that unpacking — what the term actually combines, and the one question that gets you to the right SKU on the first pass.
"Magnetic 15W" is three decisions wearing one label
When a buyer writes "magnetic 15W," they're stacking three things that are easy to confuse because the word "magnetic" shows up in two of them:
- Magnetic attachment — how the phone physically mounts: it clicks onto a magnetic puck instead of being gripped by arms.
- The Qi2 magnetic charging standard — magnets that align the phone's coil to the charger's coil for the certified standard. (Different magnets, different job — see below.)
- 15W — the charging power, which on a spec sheet is a maximum, not a guarantee.
A mount can have any one of these without the others. That's the whole source of the confusion, so let's separate them.
"Magnetic" the mount vs "magnetic" the standard
These are not the same thing, and conflating them is the single most common mistake we see in this category.
- Magnetic attachment is mechanical. The phone snaps to a magnetic surface so you can mount it one-handed and it won't slide on rough roads. A mount can do this and still charge over a plain Qi coil.
- Qi2's magnetic profile is about charging. Its ring of magnets exists to lock the phone's receiving coil onto the transmitter coil so power transfers at full rated speed instead of drifting in and out.
In practice the two often coexist — the same magnets that hold the phone also keep the coils aligned — but they don't have to. You can buy a magnetic-attachment mount that is not Qi2-certified, and you can buy Qi2 charging in a form that isn't a simple magnetic puck. If your buyer needs the certification specifically (for compliance, for marketplace listings), that's a different requirement than "I want it to click on magnetically." The certification side — which marks apply and what paperwork to ask for — is covered in full in FCC, CE and RoHS certification when importing car chargers, the post to send a buyer who's actually asking about compliance rather than mounting.
If the question is instead "magnetic or auto-clamp — which should I stock," that's a merchandising call, and we've broken it down by region and price tier in magnetic vs auto-clamping mounts.
The "15W" half: nameplate vs what arrives at the phone
The second trap is treating "15W" as a delivered number. On a spec sheet, 15W is the maximum the charger can output under ideal conditions. What the phone actually draws depends on alignment, heat, and the phone's own charging logic.
This is exactly where magnetic alignment earns its keep. On a plain Qi mount, if the phone sits a centimetre off-centre — dropped crooked into a clamp, nudged by a pothole — the coils drift and the charger throttles. The 15W is on the box; the car gets less. Lock the alignment with magnets and that 15W is usable rather than theoretical, because the coils stay in the sweet spot for the whole drive.
So "15W" is worth specifying — but only alongside how the mount keeps the phone aligned. A 15W rating on a mount with no alignment mechanism is a softer claim than the same number on an aligned one. You can see the full range and the alignment approach on each in our 15W wireless car charger range.
The one question that resolves the RFQ
When "magnetic 15W" comes in, we ask one thing back: do you mean magnetic attachment, Qi2 certification, or both — and is 15W a hard requirement or a nice-to-have?
That single question splits the order cleanly:
- "Magnetic attachment, and I want the certified standard too." → A Qi2-certified magnetic mount. The BK22S Qi2 compact vent mount is our tidy example — Qi2-certified, 15W, CE/FCC/Qi2, clicks on one-handed.
- "I want a secure 15W mount, but Qi2 cert isn't a hard requirement — price matters." → An auto-clamp 15W mount. The BK61 auto-clamp 15W mount grips the phone mechanically and charges at 15W; it's CE/FCC/RoHS certified and is not Qi2 — which is the right honest answer when a buyer doesn't actually need the Qi2 mark.
- "Magnetic attachment, but Qi2 isn't required." → A magnetic mount without paying for the Qi2 certification — fine for value channels where the buyer wants the snap-on feel, not the compliance mark.
Naming which of these you mean is the difference between one quote and three.
How we keep this cheap to figure out
The reason buyers fudge "magnetic 15W" instead of nailing it down is that getting it wrong usually costs a big minimum order. We remove that. Wholesale orders start at 2 pieces and custom-logo or OEM runs start at 50 pieces, so you can put a real magnetic-Qi2 unit and a real auto-clamp unit in front of your market and let the orders tell you which "magnetic 15W" your buyers actually meant. We also send free samples and a factory video walkthrough of the line, so you verify the product and the plant before committing volume.
Talk to the factory, not a middleman
If an RFQ in your own pipeline says "magnetic 15W" and you're not sure which version your customer needs, the fastest fix is to forward us the spec. As the manufacturer in Guangzhou — not a trading agent — we can tell you exactly which build (Qi2-magnetic or auto-clamp), share the matching certification documents, and quote your configuration directly.
Get in touch with our team for a quote, a free sample, or the certification paperwork your compliance check needs. Tell us your target market and what "magnetic 15W" means to your buyer, and we'll point you at the right mount.
