SOAIY 3-in-1 Cigarette Lighter Car Mount and Voltage Detector - Dual

In this review of the SOAIY 3-in-1 Cigarette Lighter Car Mount and Voltage Detector, the bottom line is simple: it combines a functional phone cradle with a dual USB charger and a live voltmeter, all in one plug-in unit, making it useful for drivers who want fewer gadgets on the dash. Built for most modern phones and 12V small cars, the device is best for people who value a compact, adjustable mount and the ability to monitor vehicle battery voltage while charging two devices at once.

Key Features

• 3-in-1 design: Combines a phone cradle, dual USB charger and an LED car voltmeter so users get charging and battery monitoring from a single cigarette lighter plug.
• Dual USB output: Offers a combined maximum of 3.1A (one 2.1A port and one 1A port) so two devices can be charged simultaneously while on the road.
• Real-time voltage display: LED display circularly shows vehicle battery voltage, device charging voltage and charging current so drivers can track battery health at a glance.
• Flexible positioning: The adjustable gooseneck and 360 degree rotating cradle let users place their phone horizontally or vertically for the most convenient viewing angle while driving.
• Universal phone fit: The extendable grip fits most phones 1.7-3.7 in wide and uses non-slip feet to hold a device securely without scratching the surface.

Who It's For

This unit is aimed at drivers who want a compact combined solution: rideshare drivers, commuters, and anyone who prefers a cigarette lighter mount that charges and reports battery voltage. It is especially useful for those who regularly use navigation or call hands-free and want to watch vehicle voltage to catch early battery issues.

It is not for truck drivers or vehicles with a 24V power system, and drivers who require ultra-fast charging or a heavy-duty, high-end mount may prefer a separate dedicated charger or a more robust cradle. Also, buyers who need a center console or window mount should look elsewhere since this model plugs into the cigarette lighter only.

Pros & Cons

Pros

• Combines charging and a voltmeter in one convenient cigarette lighter plug, reducing clutter in the car.
• Two USB ports with intelligent protection provide simultaneous charging and safeguard against over-voltage, over-current and over-heat.
• Flexible gooseneck and 360 degree rotation deliver a wide range of viewing angles for navigation or calls.
• Non-slip, extendable grip fits many popular phone models and supports one-handed release for convenience.

Cons

• Charging is capped at 3.1A combined, so it will not match more modern fast-charge standards and can be slower on larger devices.
• Some users report mixed impressions of build quality and fit, so expect a value-oriented rather than premium feel.

Specifications

Product type	Cigarette lighter car mount with charger and voltmeter
Power input	12V car cigarette lighter only
USB output	Dual ports: 2.1A + 1A, max 3.1A
Phone width fit	1.7-3.7 in
Rotation	360 degree rotating cradle
Adjustability	Flexible gooseneck
Voltage display	LED screen showing vehicle voltage, device voltage and charging current

Our Verdict

The SOAIY 3-in-1 cigarette lighter car mount is a practical, value-oriented option for drivers who want an all-in-one charger, mount and voltmeter for 12V cars. It offers useful real-time battery information, flexible positioning and the convenience of two USB ports, but it is aimed at users who prioritize utility and affordability over premium materials or the fastest charging speeds.

Frequently Asked Questions

Will this work in a truck with a 24V outlet?
No. This unit is designed for 12V small car cigarette lighter sockets only and will not operate properly in 24V truck systems.

What phones will fit the cradle?
The extendable grip fits most phones with widths from about 1.7 to 3.7 in, including many iPhone, Samsung Galaxy and OnePlus models listed in product details.

Does the display show charging current?
Yes. The LED display circularly shows vehicle battery voltage, device charging voltage and the charging current in real time so you can monitor charging behavior and battery health.