Home / Reviews / Mounts and Stands / ESR OmniLock 25W Car Charger
Fast wireless charging in a car tends to fall down in two places: the heat from the sun and the dashboard, and a car socket that can’t supply enough power.
ESR’s OmniLock tackles both. There’s a cooling fan behind the pad, and the box includes a 58W car adapter that can actually feed the 25W Qi2.2 charger. The catch? It’s a vent mount, and not every vent suits it.
Reviewed by the Tiny Tech Box team · Not a hands-on test — written from ESR’s published specs, the live Amazon US listing, independent reviews and owner reviews · Last checked October 10, 2026
Version reviewed: ESR OmniLock Magnetic Car Charger (25W, CryoBoost, Air Vent), Black · ASIN B0F6CPCZWJ · Amazon US listing · ESR lists this ASIN as the product’s SKU
One-sentence verdict: A stable, strong and properly fast vent charger, and the included adapter means you’ll really get 25W; check your vents first, though, because round, hidden and bladeless vents won’t work, and one owner reports cracked vent blades.
Alt text: ESR OmniLock Qi2.2 25W Magnetic Car Charger with CryoBoost, air-vent mount, Black — product image from the Amazon listing.
Caption: ESR OmniLock 25W Car Charger — Air vent · Qi2.2 25W with cooling.
Image source: Amazon product image, served by the Amazon Creators API.
Additional photos to add when we shoot our own (each will get alt text, a caption and a source credit directly beneath it):
| Best for | iPhone, Galaxy S26 Ultra and Pixel 10 owners who navigate a lot and have flat, sturdy vent blades |
| Not ideal for | Cars with round or hidden vents, or anyone nervous about clamping to fragile vent slats |
| Current price | $56.99 on Amazon |
| Price checked | Oct 31, 2026 |
| Version reviewed | ESR OmniLock Qi2.2 25W Magnetic Car Charger with CryoBoost, air-vent mount, Black |
It’s a magnetic charging pad on an aluminium arm, clamped to a vent blade with a metal hook.
A curved silicone pad cushions the vent, and a locking nut is there to stop you overtightening it. The arm turns 360° and the ball joint tilts 60°, and behind the pad sits a small CryoBoost fan.
Fitting it takes a couple of minutes. Hook it on the blade, tighten the nut, and plug the cable into the included adapter. Owners call it easy, and AppleWorld Today found it stable on everything but the roughest roads.
Power is the detail that matters. As 9to5Mac points out, it needs at least 35W of input to charge at 25W, and a typical built-in car USB port won’t supply that, so use the USB-C port on the adapter that comes with it.
And check your vents before you buy. The hook fits blades 10–32 mm wide and 1–4 mm thick, and ESR says round, bladeless, irregular and hidden vents won’t work; that’s exactly why AppleWorld Today’s reviewer prefers mounts with other ways to attach.
The magnets are strong, the phone stays put, and owners describe it as stable even on bumpy roads.
On supported phones, it’s quick: 25W on the iPhone 17, 18, 18 Pro and 16 Pro Max (iOS 26) and on the Galaxy S26 Ultra, 20W on the iPhone Air, 16 and 16 Pro, and 15W on older iPhones. Owners also report it working well with Pixel 10 phones. For the best hold, use a MagSafe or ESR magnetic case under 2 mm thick.
Cooling helps, up to a point. Owners report phones staying cool on long navigation runs, but one Pixel 10 Pro XL owner found the little fan couldn’t keep up with direct sun on a hot day. That’s what happens to a phone sitting in a sunny windscreen. It isn’t a fault.
Works with:
Not compatible:
Most owners say it’s held up through daily driving. There are two warning signs, both from the same owner: one unit died after 30 days and was replaced under warranty, and it cracked vent blades in two different cars. The overtightening protection is supposed to prevent that, so go gently on older or fragile vents. ESR gives a 12-month protection plan, extendable to 24 months by registering.
At $56.99, it’s expensive for a car mount, but that price includes a 58W dual-port car adapter and a cable, which you’d otherwise have to buy separately to get 25W. If your vents suit it, it’s good value. Happy with 15W? ESR’s HaloLock 15W car charger costs far less.
4.3 ★ from 390 Amazon ratings · price & rating checked Oct 31, 2026
Price and availability may change after the date shown.
| Product | Best for | Key advantage | Main drawback | Price |
|---|---|---|---|---|
| ESR OmniLock 25W Magnetic Car Charger (this review) | iPhone, Galaxy S26 Ultra and Pixel 10 owners who navigate a lot and have flat, sturdy vent blades | Qi2.2-certified 25W charging on supported phones, with a fan to fight heat | Vent-only, and only blades 10–32 mm wide and 1–4 mm thick | $56.99 |
| ESR HaloLock 15W Magnetic Car Charger | Lower cost, 15W | Cheaper ESR magnetic car charger | Slower charging | $19.99 |
| iOttie Easy One Touch Signature | Dashboard mounting | Suction mount avoids the vents | Not wireless charging | $24.95 |
| iOttie iTap 3 Magnetic Car Mount | Simple magnetic hold | Cheap, slim magnetic vent mount | No charging | $19.99 |
Flat vent blades and a wish for the fastest charging? Get the OmniLock. ESR’s HaloLock 15W does the same job more slowly for much less money, and if your vents won’t take a clamp, go for a dashboard mount like iOttie’s.
If your car suits it, the OmniLock is one of the best car chargers you can buy. It’s stable, the magnets are strong, it charges at full Qi2.2 speed, and ESR puts the adapter you need for that speed in the box. Independent reviewers at 9to5Mac and AppleWorld Today both recommend it.
Every reservation comes back to vents. It only fits certain blades, and one owner’s broken slats are a reminder to tighten it carefully. Any doubt about your vents? A dashboard mount is the safer choice.
| Category | Score |
|---|---|
| Design — Sturdy arm, ball joint and locking hook; vent-only | 4 / 5 |
| Value — Pricey, but includes the 58W adapter needed for 25W | 4 / 5 |
| Performance — Strong hold and full-speed Qi2.2; cooling struggles in direct sun | 4 / 5 |
| Build & Durability — Mostly solid, but a failure and a vent-damage report | 3 / 5 |
| Compatibility & Ease of Use — Easy install and broad phone support, but strict vent limits | 3 / 5 |
| Overall | 3.6 / 5 · Would Buy |
Each aspect is scored as a whole number from 1 to 5. The overall score is their plain arithmetic mean, shown to one decimal place and not rounded to the nearest half point. Verdict bands: 4.5–5.0 Hell Yeah, 3.5–4.4 Would Buy, 2.5–3.4 Average, 1.0–2.4 Trash. How we score products.
| Charging | Qi2.2 certified, up to 25W (ESR) |
| Cooling | CryoBoost fan (ESR) |
| Magnets | N52 (ESR) |
| Mount | Air-vent hook with locking nut and silicone pad |
| Vent fit | Blades 10–32 mm wide, 1–4 mm thick (ESR) |
| Adjustment | 360° rotating arm, 60° ball joint (ESR) |
| In the box | Charger mount, 58W dual-port (USB-A + USB-C) car adapter, 1 m USB-C cable |
| Power needed for 25W | 35W or more; use the included adapter’s USB-C port |
| Size | 6.89 × 4.09 × 1.85 in (Amazon listing) |
| Weight | N/A |
| Warranty | 12-month protection plan, 24 months with registration (ESR) |
| ASIN | B0F6CPCZWJ |
| Manufacturer | ESR |
Figures marked “(ESR)” are the manufacturer’s published claims. “N/A” means the value is not listed on the Amazon listing or the ESR product page.
Only if the vent blades are 10–32 mm wide and 1–4 mm thick. Round, bladeless, irregular and hidden vents won’t work.
For 25W, yes. It needs at least 35W of input, which most built-in car USB ports can’t supply.
Yes. It charges the Galaxy S26 Ultra at 25W and S26/S25 phones at lower speeds with a magnetic case, and owners report it working well with Pixel 10 phones.
It helps on long drives, but in direct summer sun, the small fan can’t fully cool the phone.
Every pick links to its full five-aspect review.
Prices and availability are accurate as of the date shown and are subject to change. The price and availability displayed on Amazon at the time of purchase will apply.
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Sources: Amazon product listing (ASIN B0F6CPCZWJ), read October 10, 2026 · ESR product page for the OmniLock Magnetic Car Charger (specifications and claims) · 9to5Mac review (power requirements) · AppleWorld Today review. Figures attributed to ESR are the manufacturer’s published claims; the rating, price and buyer feedback are from the live Amazon listing on the date shown.
Disclosure: As an Amazon Associate, Tiny Tech Box earns from qualifying purchases. Recommendations are based on our own research and scoring, described in full on our How We Score page.