12v Adapters for Beginners Guide: Charge Phones, Tablets and Laptops

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The 12V socket in your car looks like a leftover from another era, and then your phone hits five percent on the motorway. That little round socket is the only power outlet most cars have, and the adapter you plug into it decides whether your phone charges, your tablet tops up, or your laptop keeps working.

The problem for a beginner is the label. Every adapter promises fast charging, every box shouts a wattage number, and none of them explains what that number means for the device in your hand. Buy the wrong one and your laptop sips power while your phone charges at a crawl.

This guide starts from zero: what the 12V socket is, what watts and USB-C PD actually mean, and which four adapters with verified listings fit which job. No jargon without an explanation, and no pick without a listing you can check.

The 30-second answer

Buy the Anker 167.5W 3-Port Car Charger for the fullest setup: a laptop plus two phones from one socket. Buy the UGREEN 130W USB-C Car Charger if a laptop is your main device and you want a 100W port. Buy the Anker Nano 75W Car Charger if you hate loose cables, with its retractable cable built in. Buy the Anker 535 Car Charger for the simplest compact pick for phones and a tablet.

How we researched this guide

We compared four 12V adapters with verified Amazon listings, checked their listing and maker pages, and reviewed owner reports for all four picks. Four adapters carry verified Amazon listings with their wattage and port figures stated on the listing; single-port slow adapters and inverters were excluded as picks because they answer a different question.

Quick picks

Best Overall

Anker 167.5W 3-Port Car Charger

Three devices at once from one socket: a 100W USB-C port for a laptop, a 45W USB-C port for a tablet, and a 22.5W USB-A port for everything older. The most complete adapter in this guide.

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Best for Laptop Charging

UGREEN 130W USB-C Car Charger

A 100W USB-C port with PPS support for a laptop, plus a 30W USB-C port and a 22.5W USB-A port, with a 100W cable in the box. The pick when the laptop is the job.

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Best Retractable Cable

Anker Nano 75W Car Charger

A 45W USB-C cable that pulls out and retracts into the charger, plus a 30W USB-C port. No loose cable in the console, nothing left behind at a rest stop.

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Best Compact Pick

Anker 535 Car Charger

A 67W three-port adapter that disappears into the socket: two USB-C ports and one USB-A port for phones and a tablet, with no cable to manage.

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Quick compare

Product Key figure Best for Check Price
Anker 167.5W 3-Port Car Charger Total output: 167.5W A laptop plus two phones from one socket. Check Price
UGREEN 130W USB-C Car Charger Total output: 130W A laptop as the main device. Check Price
Anker Nano 75W Car Charger Total output: 75W Drivers who hate loose cables. Check Price
Anker 535 Car Charger Total output: 67W Phones and a tablet from the smallest plug. Check Price

Match a pick to your needs

12V adapter finder — match the adapter to your devices

Step 1 — What will you charge most?




Step 2 — How many devices charge at once?




Step 3 — What matters most?




Tap the cards above to match a pick to your answers. Every combination gives you a pick with its buying route stated honestly.

How to choose

Choose on the facts that decide whether the adapter charges your devices, not on the biggest number on the box. The six points below are the ones our research kept returning to.

Total watts vs per-port watts

The headline wattage is the total across all ports, not what one device gets. A 167.5W adapter does not give 167.5W to one phone; it shares that total between its ports. Check the per-port figure for your hungriest device first, then check the total for everything at once.

USB-C PD and PPS

USB-C Power Delivery is the fast-charging language most new phones and laptops speak. PPS is a part of it that adjusts voltage in small steps, which Samsung phones use for their fastest charging. If your phone supports PPS, an adapter with PPS on the port you use will charge it at its best rate.

Port count and mix

Count the devices that charge in the car at the same time, then add one spare port. USB-A still matters for older cables, dash cameras and accessories that never moved to USB-C. A spare port means nobody unplugs the dash camera to charge a phone.

Cable in the box

Some adapters include a cable and some do not, and the cable decides the speed as much as the adapter. A 100W port needs a 100W-rated cable; a thin cable caps the charge no matter what the adapter promises. Check the listing for what is in the box before ordering.

Socket fit and 12V vs 24V

All four adapters in this guide work in a standard 12V car socket. If you drive a truck with a 24V system, check the adapter lists 24V input. A plug that wobbles loose in the socket will cut out over every bump, so the fit should be snug with no play.

Heat and safety cut-offs

A good adapter throttles back or cuts out when it gets too hot instead of cooking itself. Never leave a high-load adapter running in a parked car in summer heat, and never bury it under clutter while it charges. Check the listing for over-current and over-temperature protection.

By budget

Tier What you get Example pick
Simplest start One compact adapter, phones and a tablet Anker 535 Car Charger
Balanced Retractable cable, two devices, no loose cable Anker Nano 75W Car Charger
Laptop-first 100W laptop port with cable in the box UGREEN 130W USB-C Car Charger
Fullest power Laptop plus phones, three ports Anker 167.5W 3-Port Car Charger

Types compared

Type What it is Best for
USB-C PD adapter Plugs into the 12V socket, charges phones, tablets, laptops Best for most beginners
USB-A only adapter Old-style ports, slow by modern standards Avoid for new phones
12V splitter Turns one socket into two or three sockets Best if you need more sockets, not more watts
12V inverter Turns 12V into a household AC outlet Best only for devices with no USB option

Detailed reviews

Each pick below was judged on its maker documents and listing evidence, plus the owner reports linked in its own section. Read the pick that matches your devices, and check the port figures before ordering.

Best Overall: Anker 167.5W 3-Port Car Charger

Best Overall

Why the Anker 167.5W 3-Port Car Charger is our pick

Three devices at once from one socket: a 100W USB-C port for a laptop, a 45W USB-C port for a tablet, and a 22.5W USB-A port for everything older. That single fact is what puts it on this list: it does the job its buyer actually needs, without asking them to learn a professional trade first. In our research it stood out on the documents — the listing states the key figures plainly, the maker names the ports and their wattage, and the owner reports agree on what it does well and where it falls short. The sections below give the full picture, including the limits, so you can decide with your eyes open.

Anker 167.5W 3-Port Car Charger key specs

  • Total output: 167.5W
  • USB-C1: up to 100W
  • USB-C2: up to 45W
  • USB-A: up to 22.5W
  • Input: 12V vehicle socket
  • Cable: 3.3 ft USB-C to USB-C cable included
  • Model: A2737
  • Part number: B2737
  • Use: laptop, tablet and phone charging in the car
  • Brand: Anker
  • Ports: 2 USB-C, 1 USB-A
  • Warranty: see listing

Anker 167.5W 3-Port Car Charger: fits and best for

A driver who charges a laptop plus phones from one socket. That fit is the whole point of the pick: an adapter that matches your devices will work from the first day, while one that almost fits will fight you every time you use it. Check the fitment note on the listing — socket rating, port figures and cable length — before ordering, and measure where the listing asks you to measure. The five minutes that takes are the cheapest insurance in this guide.

Anker 167.5W 3-Port Car Charger pros and watch-outs

Pros

  • 100W USB-C port charges a laptop while phones charge
  • Three ports cover laptop, tablet and older accessories at once
  • Cable included in the box
  • Compact plug that stays out of the way

Watch-outs

  • Total wattage is shared, not per port
  • USB-A port is the slowest of the three
  • Warranty term differs between sources, so check the listing

Anker 167.5W 3-Port Car Charger: what owners report

Owners report the 100W port keeps a laptop charging while the other ports handle phones at the same time. Source

Reviewers call it the pick for a laptop plus phones, with 100W on one port and 45W and 22.5W beside it. Source

Coverage here is what the public record supports: maker documents and listing evidence first, owner reports second. Where owners disagreed, the watch-outs above carry the disagreement rather than hiding it.

Anker 167.5W 3-Port Car Charger: who should not buy

Skip it if you charge one phone and nothing else. That is not a criticism of the product — it is a fit question. The right pick for one car or one job is the wrong pick for another, and the cheapest way to learn that is to read this line before ordering rather than after.

Anker 167.5W 3-Port Car Charger: pair it with

Pair it with a 100W-rated USB-C cable for the laptop port and our best automotive multimeters guide for checking the socket voltage.

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Plug the laptop into the 100W port first, then add the phones: the adapter shares its total, and the first device gets the priority port. See our best automotive multimeters guide for checking the socket voltage.

Best for Laptop Charging: UGREEN 130W USB-C Car Charger

Best for Laptop Charging

Why the UGREEN 130W USB-C Car Charger is our pick

A 100W USB-C port with PPS support for a laptop, plus a 30W USB-C port and a 22.5W USB-A port, with a 100W cable in the box. That single fact is what puts it on this list: it does the job its buyer actually needs, without asking them to learn a professional trade first. In our research it stood out on the documents — the listing states the key figures plainly, the maker names the ports and their wattage, and the owner reports agree on what it does well and where it falls short. The sections below give the full picture, including the limits, so you can decide with your eyes open.

UGREEN 130W USB-C Car Charger key specs

  • Total output: 130W
  • USB-C2: up to 100W, PPS up to 45W
  • USB-C1: up to 30W
  • USB-A: up to 22.5W
  • Charging standards: PD 3.0, QC 4.0, PPS
  • Input: 12V-24V vehicle socket
  • Cable: 100W USB-C cable included
  • Model: CD293
  • Use: laptop-first car charging
  • Brand: UGREEN
  • Warranty: 24 months per Gagadget

UGREEN 130W USB-C Car Charger: fits and best for

A driver whose laptop is the main device in the car. That fit is the whole point of the pick: an adapter that matches your devices will work from the first day, while one that almost fits will fight you every time you use it. Check the fitment note on the listing — socket rating, port figures and cable length — before ordering, and measure where the listing asks you to measure. The five minutes that takes are the cheapest insurance in this guide.

UGREEN 130W USB-C Car Charger pros and watch-outs

Pros

  • 100W port with PPS for laptops and Samsung phones
  • 100W cable included, so the laptop port runs at full speed
  • Works in 12V cars and 24V trucks
  • Three ports cover a laptop, a phone and an accessory

Watch-outs

  • Total wattage is shared across three ports
  • The 100W figure is on one port only, not all of them
  • Larger than the smallest single-device adapters

UGREEN 130W USB-C Car Charger: what owners report

Owners note the 100W port is the reason to buy it when a laptop is the main device, because the primary port supplies up to 100W rather than a shared total. Source

Reviewers name it the Editor’s Choice for a 100W laptop port in a compact body, with a 30W USB-C and a 22.5W USB-A port beside it. Source

Coverage here is what the public record supports: maker documents and listing evidence first, owner reports second. Where owners disagreed, the watch-outs above carry the disagreement rather than hiding it.

UGREEN 130W USB-C Car Charger: who should not buy

Skip it if you never charge a laptop in the car. That is not a criticism of the product — it is a fit question. The right pick for one car or one job is the wrong pick for another, and the cheapest way to learn that is to read this line before ordering rather than after.

UGREEN 130W USB-C Car Charger: pair it with

Pair it with the included 100W cable and our best automotive borescope guide for checking a socket that keeps cutting out.

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The 100W port is the one marked for the laptop: use the included cable on that port and the spare ports for phones. See our best automotive borescope guide for checking a socket that keeps cutting out.

Best Retractable Cable: Anker Nano 75W Car Charger

Best Retractable Cable

Why the Anker Nano 75W Car Charger is our pick

A 45W USB-C cable that pulls out and retracts into the charger, plus a 30W USB-C port. That single fact is what puts it on this list: it does the job its buyer actually needs, without asking them to learn a professional trade first. In our research it stood out on the documents — the listing states the key figures plainly, the maker names the ports and their wattage, and the owner reports agree on what it does well and where it falls short. The sections below give the full picture, including the limits, so you can decide with your eyes open.

Anker Nano 75W Car Charger key specs

  • Total output: 75W
  • Built-in cable: retractable USB-C, up to 45W, 29.5 inches
  • USB-C port: up to 30W
  • Retraction: rated for more than 10,000 retractions per Anker
  • Input: 12V/8A or 24V/4A
  • Model: A2738
  • Use: two-device charging with no loose cable
  • Brand: Anker
  • Ports: built-in cable plus 1 USB-C port
  • Warranty: 18 months
  • Cable note: built-in cable cannot be replaced if damaged

Anker Nano 75W Car Charger: fits and best for

A driver who is tired of loose cables in the console. That fit is the whole point of the pick: an adapter that matches your devices will work from the first day, while one that almost fits will fight you every time you use it. Check the fitment note on the listing — socket rating, port figures and cable length — before ordering, and measure where the listing asks you to measure. The five minutes that takes are the cheapest insurance in this guide.

Anker Nano 75W Car Charger pros and watch-outs

Pros

  • Built-in cable is always in the car, never forgotten
  • 45W cable plus 30W port charge two devices at once
  • Retraction rated for more than 10,000 uses per Anker
  • No loose cable to tangle around the gear shift

Watch-outs

  • Built-in cable cannot be replaced if it is damaged
  • 29.5-inch cable reaches the front seats, not the rear
  • Cable carries power only, not CarPlay or Android Auto

Anker Nano 75W Car Charger: what owners report

Reviewers note the retractable cable and the 30W second port let it fast-charge a laptop and a phone at the same time. Source

Reviewers note the built-in cable is always in the car, and that the 29.5-inch length is sized for the front of the cabin rather than the back seats. Source

Coverage here is what the public record supports: maker documents and listing evidence first, owner reports second. Where owners disagreed, the watch-outs above carry the disagreement rather than hiding it.

Anker Nano 75W Car Charger: who should not buy

Skip it if you need a cable that reaches the back seats, or a cable for wired CarPlay. That is not a criticism of the product — it is a fit question. The right pick for one car or one job is the wrong pick for another, and the cheapest way to learn that is to read this line before ordering rather than after.

Anker Nano 75W Car Charger: pair it with

Pair it with a short spare USB-C cable for a passenger and our best ATV winch guide for recovery gear if the car cannot be driven.

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The built-in cable is 29.5 inches long and retracts into the charger, so pull out only as much as you need and let it retract on its own. See our best ATV winch guide for recovery gear if the car cannot be driven.

Best Compact Pick: Anker 535 Car Charger

Best Compact Pick

Why the Anker 535 Car Charger is our pick

A 67W three-port adapter that disappears into the socket: two USB-C ports and one USB-A port for phones and a tablet, with no cable to manage. That single fact is what puts it on this list: it does the job its buyer actually needs, without asking them to learn a professional trade first. In our research it stood out on the documents — the listing states the key figures plainly, the maker names the ports and their wattage, and the owner reports agree on what it does well and where it falls short. The sections below give the full picture, including the limits, so you can decide with your eyes open.

Anker 535 Car Charger key specs

  • Total output: 67W
  • Main USB-C port: up to 67W
  • Second USB-C port: shares the 67W total
  • Ports: 2 USB-C, 1 USB-A
  • Input: 12V-24V vehicle socket
  • Model: A2731
  • Use: phones and tablet charging
  • Brand: Anker
  • Form: compact three-port plug
  • Warranty: see listing

Anker 535 Car Charger: fits and best for

A driver who wants the smallest plug that still charges three devices. That fit is the whole point of the pick: an adapter that matches your devices will work from the first day, while one that almost fits will fight you every time you use it. Check the fitment note on the listing — socket rating, port figures and cable length — before ordering, and measure where the listing asks you to measure. The five minutes that takes are the cheapest insurance in this guide.

Anker 535 Car Charger pros and watch-outs

Pros

  • Main port reaches 67W for a single device
  • Three ports in a compact plug
  • Works in 12V cars and 24V trucks
  • Simplest pick in this guide to live with

Watch-outs

  • Not a laptop charger: 67W total is for phones and tablets
  • Three-device use reduces the secondary ports
  • No cable in the box

Anker 535 Car Charger: what owners report

Reviewers describe it as the calmer three-port choice for phones, tablets and occasional light-laptop top-ups. Source

Reviewers note the main port reaches 67W on its own, so a single device gets the full output. Source

Coverage here is what the public record supports: maker documents and listing evidence first, owner reports second. Where owners disagreed, the watch-outs above carry the disagreement rather than hiding it.

Anker 535 Car Charger: who should not buy

Skip it if a laptop is your main device in the car. That is not a criticism of the product — it is a fit question. The right pick for one car or one job is the wrong pick for another, and the cheapest way to learn that is to read this line before ordering rather than after.

Anker 535 Car Charger: pair it with

Pair it with your own USB-C cables and our hybrid battery tools guide for the rest of the car kit.

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Use the main USB-C port for the hungriest device and the other ports for the rest: the ports are not equal. See our hybrid battery tools guide for the rest of the car kit.

Spec comparison

Spec Anker 167.5W UGREEN 130W Anker Nano 75W Anker 535
Total output 167.5W 130W 75W 67W
USB-C1 Up to 100W Up to 30W Built-in cable up to 45W Up to 67W
USB-C2 Up to 45W Up to 100W, PPS up to 45W Up to 30W Shares the 67W total
USB-A Up to 22.5W Up to 22.5W Not published 1 port, wattage not published
Input 12V vehicle socket 12V-24V vehicle socket 12V/8A or 24V/4A 12V-24V vehicle socket
Cable included 3.3 ft USB-C to USB-C cable 100W USB-C cable Built-in retractable cable Not published
Warranty See listing 24 months per Gagadget 18 months See listing
Model A2737 CD293 A2738 A2731
Brand Anker UGREEN Anker Anker
Use Laptop, tablet and phone charging Laptop-first car charging Two-device charging, no loose cable Phones and tablet charging
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Installation and use basics

Using a 12V adapter is straightforward. Push the adapter firmly into the 12V socket until it sits snug with no wobble, then plug the cable into the port that matches the device: the highest-wattage USB-C port for a laptop, the next port for a tablet or phone. Route the cable away from the pedals and the gear shift, and away from anything that moves when you drive.

Check whether your socket stays live when the ignition is off. Many sockets switch off with the car, and some stay on. If yours stays on, unplug the adapter before leaving the car parked for days, because a charger with devices attached will keep drawing from the battery. If the adapter ever feels loose in the socket, try the other socket if your car has two, and replace a worn socket rather than forcing the adapter to stay in.

For related how-to reading, see our best ATV winch guide, our automotive borescope guide and our automotive multimeters guide.

Safety essentials

Safety rules for this guide

  • Never run a high-wattage adapter in a parked car with the engine off for long — a flat battery follows.
  • Never plug a damaged cable into an adapter — replace the cable first.
  • Never cover the adapter or bury it under clutter while charging — heat needs air.
  • Never use an adapter that wobbles loose in the socket — a loose connection arcs and melts.
  • Never charge a swollen or damaged device battery in the car.
  • Never route a charging cable across the pedals or the gear shift.

Three accessory picks with verified listings, for the recovery and safety kit around this guide:

WARN Epic Snatch Block

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GearAmerica Tree Saver Strap

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AMBULL Shackles

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Troubleshooting

Symptom Likely cause Fix
Phone charges slowly Adapter port is weaker than the phone needs, or the cable is not PD-rated Move the phone to the highest-wattage USB-C port with a PD-rated cable
Adapter keeps cutting out Loose fit in the socket Push it in firmly; try the other socket if your car has two
Laptop shows plugged in but not charging Port wattage below what the laptop needs Use the 100W port with a 100W-rated cable
Adapter gets hot High load in a hot cabin Unplug it, let it cool, and do not cover it while charging
No power at all Socket fuse blown or socket switched off with the ignition Check the fuse box and try with the ignition on
Cable works on one port, not the other Port mix-up: the USB-A port is slower Use the USB-C port for fast charging

Who should NOT buy these

Do not buy a USB-C PD adapter if your devices only use USB-A and you never plan to change. A simple adapter does the job, and paying for watts you will never use is not a saving in any direction.

Do not buy a high-wattage adapter for a laptop that charges only by its own barrel plug. Check the laptop takes USB-C charging first, because a 100W port is useless to a laptop that cannot accept power through USB-C.

Do not buy an inverter when a USB adapter does the job. Inverters waste power turning 12V into household current and add heat, and most phones, tablets and laptops charge faster and cooler from a USB-C PD adapter.

Do not buy on total watts alone. The per-port figure decides what each device actually gets, and a big total shared across weak ports will still charge your laptop slowly.

Final verdict

Anker 167.5W 3-Port Car Charger — the fullest pick if you charge a laptop plus phones.

UGREEN 130W USB-C Car Charger — the laptop-first pick, with a 100W port and cable in the box.

Anker Nano 75W Car Charger — the tidy pick, with a retractable cable and no loose wires.

Anker 535 Car Charger — the simplest compact pick for phones and a tablet.

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FAQ

What is a 12V adapter?

A 12V adapter plugs into the round 12V socket in your car, the socket once used for a cigarette lighter, and turns the car’s 12V power into USB power for phones, tablets and laptops. Most adapters in this guide have USB-C ports with Power Delivery, which is the fast-charging standard new devices use.

Will a 12V adapter drain my car battery?

While you drive, no: the alternator supplies the power. With the engine off, an adapter with devices attached keeps drawing from the battery, so a car left parked for days with a charger plugged in can end up with a flat battery. Unplug the adapter when the car sits, especially if your socket stays live with the ignition off.

What wattage do I need to charge a laptop in the car?

Most modern USB-C laptops need a port rated at 60W or more, and a full-size laptop charges best from a 100W port with a 100W-rated cable. The UGREEN 130W and the Anker 167.5W in this guide both offer a 100W USB-C port. Check your laptop takes USB-C charging before buying any adapter for it.

Why does my phone charge slowly in the car?

Usually the port or the cable is the limit. A USB-A port or a thin cable caps the charge no matter what the adapter promises. Move the phone to the highest-wattage USB-C port and use a cable rated for Power Delivery, and check the phone itself is not limiting the charge because it is hot or nearly full.

Can I use a 12V adapter in a 24V truck?

Only if the adapter lists 24V input. The UGREEN 130W, the Anker Nano 75W and the Anker 535 all list 12V-24V or 24V input, so they work in trucks as well as cars. The Anker 167.5W lists a 12V vehicle socket, so check the listing before using it in a 24V vehicle.

Do I need a special cable for fast charging?

Yes. Fast charging needs a cable rated for the wattage you want: a 100W port needs a 100W-rated USB-C cable, and a thin or old cable will cap the speed. The UGREEN 130W and the Anker 167.5W both include a suitable cable in the box. For the other picks, use a cable rated for the port you plug it into.

What is the difference between USB-C PD and PPS?

USB-C PD, or Power Delivery, is the standard that lets a charger negotiate higher wattages with a device. PPS is a part of PD that adjusts voltage in small steps, which Samsung phones use for their fastest charging. An adapter with PPS on the port you use will charge a PPS phone at its best rate; a phone without PPS simply charges at the standard PD rate.

Can I leave the adapter plugged in all the time?

Yes, if your socket switches off with the ignition, which most do. If your socket stays live with the ignition off, the adapter draws a small amount of power even with nothing plugged in, and a car left for days can end up with a flat battery. Unplug it before a long park, and never leave a high load running in a parked car.

Is a 12V inverter better than a USB adapter?

Usually not. An inverter turns 12V into household AC power, which wastes energy and adds heat, and most phones, tablets and laptops charge faster and cooler from a USB-C PD adapter. An inverter is the right buy only for a device with no USB option at all, such as a CPAP machine or a tool battery charger.

Sources

By Leo, Founder, WinchInsider

Leo researches winches and automotive accessories from maker documents, listing evidence and owner reports, and writes guides that state what the documents actually say — including the limits.

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Our top pick: Anker 167.5W 3-Port Car Charger

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