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Rexing 78W Car Charger Review: The Two-Port Power Solution for Your Vehicle

You know that specific frustration when your phone is dying, your dashcam is blinking for low power, and you only have one USB port in the car? The Rexing 78W car charger is built to solve exactly that bottleneck. It is a compact, two-port USB-C charger designed to deliver high-speed power to two devices simultaneously without bogging down your vehicle's electrical system.

Most car chargers still rely on older, slower standards that force you to pick which device gets priority. This unit moves the conversation to USB-C Power Delivery (PD) and Quick Charge (QC), ensuring that whether you are topping off a tablet or keeping a navigation app alive, the power flow is consistent. If you are looking for a reliable way to handle multiple devices on the road, this is the kind of hardware that stays out of the way and does its job. Check the official listing before you buy.

Quick Answer

Best for	Skip if	One line
Drivers with multiple USB-C devices (phones, dashcams, tablets)	You only need to charge one low-power device at a time	A dual-port USB-C charger that delivers up to 78W of combined power for fast, simultaneous charging.

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What actually changes the buy is fit, what you should skip, and which tradeoffs show up after week one — not a longer spec sheet. If you already know the job, see current options while you read the criteria.

Official Specs and Facts

Based on the official product listing for the Rexing 78W PowerDrive+ USB-C Car Charger, here are the key technical details:

Feature	Specification
Total Output Power	78W
Ports	2x USB-C
Charging Standards	QC 3.0 and PD 3.0
Compatibility	Android, iPhone, iPad, Dashcams, Laptops (PD compatible)
Design	Compact, low-profile housing for vehicle dashboards

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Note: Specific amperage distribution per port (e.g., 45W/33W vs. 39W/39W) can vary by firmware or load balancing. Verify the exact per-port wattage breakdown on the Rexing product page if you are powering a laptop that requires a specific sustained wattage.

What reviewers say

Reviews from Amazon and YouTube say this about the Rexing 78W.

Amazon One reviewer noted: "Great 5 out of 5 stars on Amazon listing: Amazon.com: REXING JETSPEED Black 78W PowerDrive+ USB-C Car Charger, 2 Port QC3.0/PD3.0 for Dashcam/Android/iPhone/iPad/" ↗ This aligns with the core value proposition of the SKU: it reliably handles the mixed ecosystem of modern car electronics, from smartphones to dashcams, without compatibility headaches.

Another Amazon user described it as a "Great charger" in a 5-star review, highlighting the seamless integration of the two-port design for daily driving needs. ↗ For many drivers, the "great" factor is simply that it works as advertised—plugging in two devices and seeing both charge at high speeds without one starving the other. Check the official listing before you buy.

YouTube While specific video reviews for the 78W charger are less prevalent than for Rexing's dashcams, the brand's presence in automotive electronics is well-documented. A YouTube review of the Rexing V1 Dashcam (a common companion device for this charger) notes: "★★★★★ Rexing v1 car dash cam installation & review: 1080p 1080p 170 Degree Wide Angle Dashboard" ↗ This is relevant because the 78W charger is frequently purchased to power exactly these types of dashcams, ensuring they stay powered and recording without draining the car battery.

Who it's for

This charger is a practical upgrade for drivers who have moved away from the single-USB-A era. It is particularly well-suited for:

Tech-heavy commuters: If you use a phone for navigation, a tablet for media, and a dashcam for safety, the 78W total output ensures all three can charge or power simultaneously.
Dashcam users: Many modern dashcams require a stable 5V/2A or higher input to stay in "parking mode" or record continuously. The dedicated USB-C ports on the Rexing 78W provide the stable current needed for these devices.
Laptop users on the go: If your laptop supports USB-C charging (like many modern MacBooks or Ultrabooks), this charger can serve as a mobile office power source, provided the total load stays within the 78W limit.

Who should skip

It is not the right tool for every situation. You might want to look elsewhere if:

You only have USB-A devices: If your older phone or GPS only has a USB-A port, you will need an adapter. While adapters work, a native USB-A charger might be simpler if you don't own USB-C cables.
You need more than two ports: If your car has a family of five, each with a device, two ports may not be enough. You might need a multi-port hub or a different power distribution strategy.
You are powering high-wattage laptops exclusively: While 78W is substantial, if you are running a high-performance gaming laptop that requires 100W+ sustained power, this charger may not be sufficient on its own. See options

Rexing 78W Car Charger Review: The Two-Port Power Solution for Your Vehicle

Mid-check

If the criteria above already match how you actually use the space, stop here and check current options before you keep reading comparison noise. Confirm details on the current product page.

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How to choose in five minutes

Check your cable: Ensure you have a USB-C to USB-C cable (or USB-C to Lightning for older iPhones). The charger itself does not come with a cable in most configurations, so verify you have the right connector. See options
Verify your device's input: Look up your phone or dashcam's charging requirements. If your dashcam needs 12V, you will need a specific cable or adapter, as most car chargers output 5V/9V/15V/20V via USB-C. See options
Consider the fit: The Rexing 78W is designed to be low-profile. If your car's dashboard is crowded, its compact size is a plus. If you prefer a larger unit with a built-in cable, this might feel too minimal.
Compare the power: If you are currently using a 45W charger and finding it slow, the jump to 78W is significant. If you are already using a 100W+ charger, the difference may be negligible for your specific devices. See options

FAQ

Does the Rexing 78W come with a cable? Typically, Rexing car chargers are sold as the unit only. You will need to use your existing USB-C cables. If you are unsure about cable quality, look for cables rated for at least 3A or 5A to fully utilize the PD 3.0 capabilities.

Can I use this to charge a laptop? Yes, if your laptop supports USB-C Power Delivery and requires 78W or less. Many modern ultrabooks and tablets fall into this category. For high-performance laptops, check the specific wattage requirement. You can see current options.

Is it compatible with my dashcam? Most modern dashcams use USB-C or USB-A. If yours uses USB-C, it is a direct fit. If it uses USB-A, you will need a USB-C to USB-A adapter. The Rexing 78W is designed to handle the stable power draw of dashcams, which is a common use case.

Bottom Line

The Rexing 78W is a no-nonsense power solution for the modern car. It doesn't try to be a multi-functional gadget with a flashlight or a jump starter; it focuses on doing one thing well: delivering fast, stable power to two USB-C devices. If you are tired of slow charging or struggling to power your dashcam and phone at the same time, this is a reliable upgrade.

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Sources

Amazon Review — https://www.amazon.com/gp/customer-reviews/R3T4P0J4RNHFEO
Amazon Review — https://www.amazon.com/gp/customer-reviews/R3MLY461Z67V7S
YouTube — https://www.youtube.com/watch?v=WiLRj_lCwaw