We spent many hours on research to finding marine usb outlet waterproof, reading product features, product specifications for this guide. For those of you who wish to the best marine usb outlet waterproof, you should not miss this article. marine usb outlet waterproof coming in a variety of types but also different price range. The following is the top 10 marine usb outlet waterproof by our suggestions:

Best marine usb outlet waterproof

Product Features Editor's score Go to site
FXC Waterproof Marine Boat Rocker Switch Panel 6 Gang With Dual USB Slot Socket + Cigarette Lighter + Digital Voltage Display LED Light for Car Rv Vehicles Truck (6 Gang Red Light) FXC Waterproof Marine Boat Rocker Switch Panel 6 Gang With Dual USB Slot Socket + Cigarette Lighter + Digital Voltage Display LED Light for Car Rv Vehicles Truck (6 Gang Red Light)
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LiDiVi Waterproof Dual USB Charger Socket Power Outlet 2.1A & 2.1A with Digital Voltmeter Blue LED Light for iPad iPhone Car Boat Marine Mobile LiDiVi Waterproof Dual USB Charger Socket Power Outlet 2.1A & 2.1A with Digital Voltmeter Blue LED Light for iPad iPhone Car Boat Marine Mobile
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YONHAN Quick Charge 3.0 Dual USB Charger Socket, Waterproof Power Outlet Fast Charge with LED Voltmeter & Wire Fuse DIY Kit for 12V/24V Car Boat Marine ATV Bus Truck and More YONHAN Quick Charge 3.0 Dual USB Charger Socket, Waterproof Power Outlet Fast Charge with LED Voltmeter & Wire Fuse DIY Kit for 12V/24V Car Boat Marine ATV Bus Truck and More
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Marine Grade Dual USB Socket and Cigarette Lighter Power Socket DC 12V Marine Grade Dual USB Socket and Cigarette Lighter Power Socket DC 12V
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Zeato 4.8A Dual USB Charger Socket Waterproof Power Outlet 5V [2.4A & 2.4A] Dual Ports Fast Charge Adapter for iPhone Smartphone Car Boat Marine RV Mobile (Blue) Zeato 4.8A Dual USB Charger Socket Waterproof Power Outlet 5V [2.4A & 2.4A] Dual Ports Fast Charge Adapter for iPhone Smartphone Car Boat Marine RV Mobile (Blue)
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WATERWICH 2 3 4 Hole Marine Illuminated Toggle Rocker Switch Panel Waterproof Ignition Rocker Switch 12V-24V Volt Meter For RV Car Boat Trailer Vehicles Truck Yacht SUV (3 hole Blue) WATERWICH 2 3 4 Hole Marine Illuminated Toggle Rocker Switch Panel Waterproof Ignition Rocker Switch 12V-24V Volt Meter For RV Car Boat Trailer Vehicles Truck Yacht SUV (3 hole Blue)
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Quick Charge 3.0 Car Charger, CHGeek 12V/24V 36W Waterproof Dual QC3.0 USB Fast Charger Socket Power Outlet with LED Digital Voltmeter for Marine, Boat, Motorcycle, Truck, Golf Cart and More (Black) Quick Charge 3.0 Car Charger, CHGeek 12V/24V 36W Waterproof Dual QC3.0 USB Fast Charger Socket Power Outlet with LED Digital Voltmeter for Marine, Boat, Motorcycle, Truck, Golf Cart and More (Black)
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LaoDa Dual USB Charger Socket Waterproof Power Outlet 2.1A & 2.1A with Voltmeter & Wire in-line 10A Fuse for 12-24V Car Boat Marine Motorcycle LaoDa Dual USB Charger Socket Waterproof Power Outlet 2.1A & 2.1A with Voltmeter & Wire in-line 10A Fuse for 12-24V Car Boat Marine Motorcycle
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Blue Sea Systems Dual USB Charger Socket Blue Sea Systems Dual USB Charger Socket
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HiGoing 12V/24V Marine USB Outlet, Waterproof QC3.0 Dual USB Charger Socket with Voltage LED Digital Display for Car Boat Motorcycle Mobile (Upgraded with QC3.0) HiGoing 12V/24V Marine USB Outlet, Waterproof QC3.0 Dual USB Charger Socket with Voltage LED Digital Display for Car Boat Motorcycle Mobile (Upgraded with QC3.0)
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Related posts:

1. FXC Waterproof Marine Boat Rocker Switch Panel 6 Gang With Dual USB Slot Socket + Cigarette Lighter + Digital Voltage Display LED Light for Car Rv Vehicles Truck (6 Gang Red Light)

Feature

Good design,perfect for your machine,Heavy duty ABS plastic face panel.IP67 Waterproof,Approved:CE Certify, Totally Environment Friendly.
Electrical Life:10000 make and break cycles at full load,3.1A dual USB (2.1A+1A). Voltmeter Measurement:6-28V,Cigarette Lighter Socket Output Voltage:12-24V.
6PCS rocker switch with Red LED Light , Loop Circuit: ON-OFF 12V-24V .size for panel:18 x 12 x 9cm.
Easy to install and durable.With our strict quality control system, we test each item and 100% ensure in good condition before we ship.
Enjoy 1 year quality warranty under regular use. Offering customer technical service, feel free contact us for technical, installation and use question.

Description

Description:
6 Gang Red LED Rocker Switch, 12V Cigarette Socket, Voltmeter & 3.1A Dual USB Power Charger, full fill all kinds of charging needs.
Fits for DC 12V/24V vehicles Truck/Yacht/Marine/Boat, suitable for controlling all electronic equipment on board.
IP67 Waterproof, Rhos and CE Certify, Totally Environment Friendly
Short circuit / Overheat protection
Product Dimensions: 18 x 12 x 9cm, Panel is pre-wired, Includes 4x Stainless Steel Screw

Specification:
Rocker Switch: 6
Loop Circuit: ON-OFF
Voltage: DC 12V 20A, 24V 10A
Max Output Power: 240W
Electric Strength: AC 1500V 1 Minute
Operating Temperature: -25 degree C to 80 degree C
Electrical Life:10000 make and break cycles at full load
Dual USB Port: 5V 3.1A (1A+2.1A)
Voltmeter Measurement:6-28V
Cigarette Lighter Socket Output Voltage:12-24V
Material: ABS
Product Dimensions: 18 x 12 x 9cm

Package Includes:
1x Switch Panel
2x Pre-printed labels
6x Stainless Steel Screw

2. LiDiVi Waterproof Dual USB Charger Socket Power Outlet 2.1A & 2.1A with Digital Voltmeter Blue LED Light for iPad iPhone Car Boat Marine Mobile

Feature

LED VOLTAGE DISPLAYWith a built-in LED Digital voltmeter, voltage monitor. Monitors the vehicle's battery and electrical system automatically in real-time and indicates the voltage in the screen, you will know the health of battery while driving. WARM TIP: The voltage reading will be visible only by connecting to the battery and the voltage also can be read when the cover is engaged.
INTELLIGENT CHARGINGWith dual 5V/2.1A charging port, built-in smart charging IC, will auto detects and charges two devices simultaneously at full speed, better charging performance. Works with all USB-powered devices like iPhone 8/ 8 Plus/ X/ 7/ 6S, Samsung Galaxy S9/ S9+/ S8/ S8+/ S7, iPad, android tablets, power bank, video games controllers, sports watch, cameras, etc. (Please note: The charger is not QC3.0 which doesn't support qualcomm quick charge)
SAFETY GUARANTEEIts CE, FCC & RoHS certifications and multiple protection against over-current, overcharging, overheating and high temperature will guard the safety of your devices. With IP66 WATERPROOF GRADE, allows it do good job on boat! Adopted PA66 environment-friendly nylon material, high temperature resistant, low temperature resistant, also has anti-flame-retardant properties, makes it a high safety standard product.
WIDE COMPATIBILITY Fits for almost input DC 12V-24V car, Boat, Marine, ATV, RV etc. The advanced full nylon body with a scratch resistance technology, keeps it sturdy and protects it against drops and scratches. High quality nylon material let your car charger always looking like new.
WORRY-FREE WARRANTYWith 12month manufacturer 100% money back guarantee. You are welcome to contact us if you have any questions or concerns. Our reliable customer service will reply within 24 hours, always.

Description

LiDiVi 2 USB Power Socket Charger, the handy charger features a dual-port(2.1A each) design, which allows for charging two devices at the same time. Quickly charge smartphones, tablets, accessories and more.

Why you can choose our car charger?

LED Voltage Display
Monitories the vehicle's battery and electrical system automatically and indicating the car voltage in the screen, you will know the health of battery while driving.

Dual USB Fast Charging Technology
Two ports output 5V/2.1A, that's enough to charge two iPads simultaneously!

Overcharge Protection
Meets CE/ROHS certification, charges safely, without risk of overheating or damaging devices.

Waterproof Design
with IP66 waterproof grade, allows it do good job on boat!

Product Features:
1. Condition: 100% Brand New
2. Power input: DC 12V-24V
3. Power output: 5V 2.1A/2.1A
4. Product Dimension: See image 7

Package Include:
1* Dual Ports USB Charger
2* Blue Terminal

NOTE:
1. The voltage reading will be visible only by connecting to the battery.
2. The voltage also can be read when the cover is engaged.
3. This USB charger socket does not support Qualcomm quick charge.

Warranty:
60 days money-back and 12-month worry-free Guarantee!

Please feel free to contact us via e-mail regarding our products or service. Thanks a lot!

3. YONHAN Quick Charge 3.0 Dual USB Charger Socket, Waterproof Power Outlet Fast Charge with LED Voltmeter & Wire Fuse DIY Kit for 12V/24V Car Boat Marine ATV Bus Truck and More

Feature

ALL METAL MATERIAL BODYThe advanced full aluminum alloy body with scratch resistance technology keeps it sturdy and let the 12v USB outlet always look like new. Upgrade metal car charger will not be overheating at high temperatures, which is safer than plastic one.
QUICK CHARGE 3.0With dual supporting QC 3.0 USB ports, the 36W 12 volt USB outlet charges two compatible devices simultaneously up to 4X faster than conventional charging, backward-compatible with QC 2.0 &1.0, and deliver the fastest possible charge to all non-Quick charge devices.
VOLTMETER FUNCTIONComes with LED voltmeter which monitories the vehicle's battery and electrical system automatically and indicating the car voltage in the screen, YonHan dual USB charger socket will let you know the health of battery while driving.
WIDE COMPATIBILITYFits for DC 12/24V car, boat, marine, motorcycle, ATV, RV etc. This 12V/24V power outlet is suitable for charging iPhone 8/ 8 Plus/ X/ 7/ 6S, Samsung Note 9/ Galaxy S9/ S9+/ S8/ S8+/ S7, iPad, android tablets, power banks, video games controllers, sports watch etc.( NOTE: iPhone series does not support fast charging, charging the iPhone is normal speed.)
ALL-ROUND PROTECTIONCertified by CE & ROHS with Over-load, Over-current and Short Circuit Protection to ensure charging safety, guard the safety of your devices.

Description

YonHan Quick Charge 3.0 Dual USB Charger Socket, Waterproof Aluminum Power Outlet Fast Charge with LED Voltmeter & Wire Fuse DIY Kit for 12V/24V Car Boat Marine ATV Bus Truck and More

QC 3.0 Dual USB Fast Charger
Smartphones, tablets and other accessories can charge much faster, and you can save time. The quick charge ports work with most cell phones, tablets, digital cameras, PDAs, PSP, MP3, MP4 and other USB devices.***Note: Some mobile phones do not support fast charging, such as the iPhone series. And they adapt for normal charging speed.

Smart IC Technology
With intelligent power IC, outputs stable current without fluctuation.

Specifications
Input : DC 12V-24V
Output of each usb port : DC 3.6-6.5V/3A, 6.5V-9V/2A, 9V-12V/1.5A
Product Dimension: 1.45 x 1.92 inches
Portiforium Dimension: 1.12 inches
Max Output: 36W(18W each)

Package Include
1 * Dual USB Car Charger Adapter
1 * 23.7 Inches Wire with two 10A fuses(one installed)

Notes
1. The voltage indicator ONLY works by connecting to the battery.
2. Since the iPhone series does not support fast charging, charging the iPhone is normal speed.
3. For mobile phones that support fast charging, you must use the original charging cable or fast charging cable to achieve fast charging.

Warranty
12-month warranty and provide friendly, easy-to-reach support.

4. Marine Grade Dual USB Socket and Cigarette Lighter Power Socket DC 12V

Feature

USE: DC 12V Dual USB Socket and Cigarette Lighter Power Socket that is compatible with any standard cigarette lighter plug or lockable marine power socket and USB cable connector.
DESIGN: It is marine grade which means it can be used in marine environments. It is weather and UV resistant. This plug outlet is designed with heavy-duty nylon plastic and nickel-plated brass terminals.
SECURE: It contains an interlocking system that securely locks the plugs into the outlet resulting in a secure and waterproof connection.
CAUTION: This Dual USB Socket and Cigarette Lighter Power Socket is designed for DC 12V use and should NOT be plugged into an outlet in your home. Also, this Cigarette Lighter Power Socket Outlet is NOT to be used for actual hot lighters. DOES NOT INCLUDE SCREWS
SHIPS FROM CLEVELAND, OHIO, USA - EXPEDITED SHIPPING AVAILABLE

Description

The USS-WMB0002 is a DC 12V Dual USB Socket and Cigarette Lighter Power Socket that is compatible with any standard cigarette lighter plug or lockable marine plug and USB cable. It is marine grade which means it can be used in marine environments. It is weather and UV resistant. This plug outlet is designed with heavy-duty nylon plastic and nickel-plated brass terminals. Installation of the USS-WMB00002 requires a two 1 1/8" holes approx. 3/4" apart for mounting and has a quick male-ended connectors. The cigarette lighter power socket contains an interlocking system that securely locks the plugs into the outlet resulting in a secure and waterproof connection. Simply line up the tabs on the plug with the arrows on the outlet and press the plug into the outlet until it locks in the socket. To remove the plug, just rotate it and pull out. This makes the connection vibration proof. The other side contains two USB connector ports. This socket kit is perfect for boaters that are refurbishing their boat panels. CAUTION: This Cigarette Lighter Socket Plug Outlet is designed for DC 12V use and should NOT be plugged into an outlet in your home. Also, this Cigarette Lighter Socket Plug Outlet does NOT used for actual hot lighters. DOES NOT INCLUDE SCREWS. Specifications: Brand U.S. Solid SKU: JFWMB00002 U.S. Solid Model: USS-WMB00002 GTIN-12 (U.P.C.) 888107071860 Voltage: DC 12V Weight: 1.6oz. Dimensions: Panel Depth including connectors 1.625" x 4.125" 2.25" Material: Nylon Plastic, Nickle Plated Brass Color: Black

5. Zeato 4.8A Dual USB Charger Socket Waterproof Power Outlet 5V [2.4A & 2.4A] Dual Ports Fast Charge Adapter for iPhone Smartphone Car Boat Marine RV Mobile (Blue)

Feature

[4.8A Fast Charge] -- Charge two devices simultaneously at high speed with 5V 2.4A of dedicated adaptive power output per USB port
[Safety Protection] -- Built-in safeguards protect your devices against over-heat, over-current, over-voltage, overload, under-voltage and short-circuit
[Easy to Install] -- "+" connect to positive pole, "-" connect to negative pole; the adapter could be wired on an on/off switch, turn if off for energy-saving
[Flame Retardant] -- Made of high and low temperature resistant ABS material, works well on high temperature and low temperature environments (- 4F to 176F)
[Wide Compatibility] -- Universally fits for almost input 12V-24V DC vehicles, cars, boats and marines, motorcycles, trucks, SUV, UTV and so on

Description

Zeato 5V 4.8A Fast Charge Dual USB Charger Socket

Dual USB Fast Charge
With 2.4A USB fast charging port that is compatible with all USB powered devices including Android & Apple smartphones & tablets

Charging with Safety
Built-in safeguards chip protects your devices against excessive current, over-heating, and over-charging

Over Temperature Protection
Made of high and low temperature resistant ABS material, works well on high temperature and low temperature environments (- 4F to 176F)

Universal Power Socket
Works great as a replacement or extra dual USB charger on car / boat / marine switch panel, with Blue LED light

Specifications:
- Material: ABS
- Weight: 29G
- Input Voltage: 12V-24V
- Power Output: 5V 4.8A
- Waterproof Level: IP66
- Protection: Reverse Polarity Protection
- Product Size: 3.7cm x 5.4cm (1.46''x 2.13'')
- Operating Temperature: -20 to 80

Package Content:
1 * 4.8A Dual USB Car Charger
2 * Insulated Terminals

Warranty: supported by Zeato with 45 days money-back, 12-month hassle-free guarantee!

Please feel free to contact us via e-mail if you had any questions regarding the products or service, we are dedicated to provide excellent service for our customers!

6. WATERWICH 2 3 4 Hole Marine Illuminated Toggle Rocker Switch Panel Waterproof Ignition Rocker Switch 12V-24V Volt Meter For RV Car Boat Trailer Vehicles Truck Yacht SUV (3 hole Blue)

Feature

1x Cigarette Lighter Socket + 1x LED Voltmeter + 1x Dual USB Charger,Small size and excellent performance.Easy to install, Waterproof LED illuminated USB charging socket & Voltmeter Fits for any flat interior and exterior application.
NOTE: This Dual USB Socket and Cigarette Lighter Power Socket is designed for DC 12V use and should NOT be plugged into an outlet in your home. Also, this Cigarette Lighter Power Socket Outlet is NOT to be used for actual hot lighters.
Overcharge Protection: it's certified by CE & ROHS, charges safely, without risk of overheating or damaging devices
Apply to all 3.1A USB charging mobile phones or other electronic products. Great for charging your Phones, Tablet, Android Devices, PDA, GPS ect.Run multiple accessories at one time, very convenient and easy to use.
Multifunctional product with LED indicator light, perfect for travel use.Wide Compatibility: Fits for 12-24V Car, Truck,Boat, Marine, ATV, RV etc. The USB socket with dual output 5V/2.1A,5V/1A charging port.

Description

Specifications:
USB Pocket: 2 USB (5V 1A / 5V 2.1A)
Operating Temperature:-25-80
Protection class: IP65
Related Certificates: CE / RoHS / UL

Description
Multifunction Switch Panel Kit:included 2.1A/5V & 1A/5V dual usb charger,digital voltmeter, cigarette lighter socket and ON-OFF Button Switch
Material: Made of engineering ABS plastic and the entire plate is nylon built
Output circuit protection, overload protection & reverse polarity protection
Submerged in water operation is not recommended
Usage: forCar, Truck,Boat, Marine, ATV, RV,Trailer Vehicles Yacht SUV, etc.
Suitable for both 12V and 24V systems Panel is pre-wired Easy to install: only put this in to the switch hole, fix it with screws and then you can begin to use it.

Description on Dual USB Power Charger:
Working voltage:12-24V
Output current:3.1A
Output voltage:5V
LED Light:Blue,Green,Red.
Rubber cover should be on to protect the device from moisture
Waterproof casing will protect the charger from rain or coffee spill
Dual USB port can satisfy you all kinds of charging needs. Charge for iOS Android mobile phone, GPS Navigator, camera, MP3 Player, etc.

Description on Voltmeter:
Voltage indicator real-time monitor your vehicle's voltage from 6V to 28V
The led digital voltmeter clearly shows your car volts and helps you to better understand battery condition.

Description on Cigarette Lighter Socket:
Working voltage:12-24V
Output voltage:12-24V
12V / 24V cigarette lighter socket with dustproof rubber seal cover.
Rubber cover should be on to protect the device from moisture

7. Quick Charge 3.0 Car Charger, CHGeek 12V/24V 36W Waterproof Dual QC3.0 USB Fast Charger Socket Power Outlet with LED Digital Voltmeter for Marine, Boat, Motorcycle, Truck, Golf Cart and More (Black)

Feature

Dual QC3.0 USB Ports CHGeek Dual USB charger socket has two 18W / 3A QC3.0 fast charging ports, which is 4x faster than conventional chargers. Backwards compatible with Quick Charge 2.0 & 1.0. Suitable for all popular USB devices, such as Samsung Galaxy S8 / S7 Edge / S7 / S6 Edge / S6 / Nexus 6 / LG G4 / Huawei P9 / LG G5 / HTC 10 / ZTE Axon 7 etc. Note: The car charger will consume 30mA current at most when the vehicle has been switched off
Digital LED Display An integrated usb charger socket with a LED voltage display that can show the voltage status of car battery in time. Very useful for car, boat, bike, SUV, ATV, RV car, campers and motorcycles, etc. It is compatible with most vehicles with a voltage of DC 12-24V connections. Attention: The integrated digital LED display only works when you connect it with battery
Premium Material Different from the nylon material on the market, this usb car charger is made of Aluminum alloy with better heat dissipation, which has advantage of non-flammable, wear resistant and good stability. The current voltage values can also be displayed when using the fixed protective cap above the USB interface. Besides, the cap effectively protects the charger against sudden water splashes
Highest Safety StandardsDual QC3.0 USB charger socket is in line with the safety and quality regulations of the strictest. Provides protection against overload, overvoltage, overcurrent, overheat and short circuit, so that you have maximum safety in use. Certificated by CE and ROHS
Simply Installation This USB outlet is very easy to be installed within 20 minutes: "+" is plugged into positive pole and "-" is put on negative pole. It can also be connected to an on / off switch to save energy

Description

CHGeek USB charger socket with dual QC3.0 fast usb ports and LED voltage indicator

Dual USB Fast Charger
Smartphones, tablets and other accessories can charge much faster, and you can save time. The quick charge ports work with most cell phones, tablets, digital cameras, PDAs, PSP, MP3, MP4 and other USB devices.***Note: Some mobile phones do not support fast charging, such as the iPhone series. And they adapt for normal charging speed.

Smart IC Technology
With intelligent power IC, outputs stable current without fluctuation.

Upgraded Metal Material
Unlike others nylon material, the outlook of dual charger socket is IP66 waterproof grade and adopted for aluminum alloy which can guarantee long-term use without overheat.

LED Voltage Display
The car usb charger has a compact design, and has an integrated LED power indicator that monitors its car battery, which can driving safety.
Universally suitable for most DC 12-24V vehicles, cars, SUVs, motorcycles, motorcycles, bicycles, boats, marine, etc.

Specifications
Input : DC 12V-24V
Output of each usb port : DC 3.6-6.5V/3A, 6.5V-9V/2A, 9V-12V/1.5A
Product Dimension: 1.45 x 1.92inches
Max Output:36W

Package Include
1 x Dual USB Car Charger Adapter
1* 23.7 Inches Wire with 10A fuse
2 x blue connection cap

Notes
1. The voltage indicator ONLYworks when the device is connected to the battery.
2. Since the iPhone series does not support fast charging, charging the iPhone is normal speed.
3. For mobile phones that support fast charging, you must use the original charging cable or fast charging cable to achieve fast charging.

8. LaoDa Dual USB Charger Socket Waterproof Power Outlet 2.1A & 2.1A with Voltmeter & Wire in-line 10A Fuse for 12-24V Car Boat Marine Motorcycle

Feature

LED VOLTAGE DISPLAYThis USB socket has a built-in LED digital display voltage monitor, monitors the health of your vehicle's battery and electrical system in real-time, and allows quick and easy usage in the dark or at night.
INTELLIGENT CHARGINGComes with dual 5V/2.1A charging ports, built-in smart charging IC, will auto detects your devices and simultaneously chargers 2 devices at optimal speed, better charging performance.
BROAD COMPATIBILITYThis USB charger socket fits for DC 12-24V car, boat, marine, motorcycle, ATV, RV etc. Suitable for charging mobile phones, GPS, digital cameras, PDAs and other USB accessories.
OVERCHARGE PROTECTION The cable has a 10A built-in fuse for over-load protection, the USB socket meets CE/ROHS certification, charges safely, without risk of overheating or damaging devices.
WATERPROOF AND HIGH QUANTITY With IP66 waterproof grade, made of high and low temperature resistant nylon flame retardant materials.

Description

LaoDa 2 USB Power Socket Charger, the handy charger features a dual-port(2.1A each) design, which allows for charging two devices at the same time. Quickly charge smartphones, tablets, accessories and more.

Built-in Voltmeter for Safety Driving
The waterproof USB socket built-in LED digital display voltage monitor, shows the accurate voltage status of device in real-time, prevent your motorcycle or car from starting hard, off and on intermittently and the headlights not enough bright cause by too low battery voltage, or prevent your motorcycle or car from engine instability or horns stopping working cause by too high battery voltage.

Dual USB Fast Charging Technology
Two ports output 5V/2.1A, that's enough to charge two iPads simultaneously!

Product Features:
1, Condition: 100% Brand New
2, Power input: DC 12V-24V
3, Power output: 5V 2.1A/2.1A
4, Product Dimension: See image 7
5, LED Digital Display Voltmeter

Package Include:
1* Dual Ports USB Charger
1* 23.7 Inches Wire with 10A fuse
2* Blue Terminal

NOTE:
The voltage reading will be visible only by connecting to the battery and the voltage also can be read when the cover is engaged

Warranty:
60 days money-back and 12-month worry-free Guarantee!

Please feel free to contact us via e-mail regarding our products or service. Thanks a lot!

9. Blue Sea Systems Dual USB Charger Socket

Feature

Black 12/24V Dual USB 2.1A socket mount charger allows you to charge two mobile devices on the go
Internal fusing
Conformal coated circuit board for the harsh marine environment
Protective dust cap keeps debris and moisture out
Max output charge 2.1A DC (total), input voltage range: 9V-32V DC, output voltage: 5V DC+/- 5%
Thermal overload protection, short circuit protection, and reverse polarity protection
Mounts in common 1-1/8" (29 mm) diameter hole

Description

12V DC Dual USB Charger dash mount with protective cap Compatible with popular mobile devices USB 2.0.

10. HiGoing 12V/24V Marine USB Outlet, Waterproof QC3.0 Dual USB Charger Socket with Voltage LED Digital Display for Car Boat Motorcycle Mobile (Upgraded with QC3.0)

Feature

36W USB Car Charger -- Charge two devices simultaneously at full speed with 3.6A in each USB port. With a total power of 36W, the charging speed is 4x faster than conventional chargers and works for all USB-powered devices
10A Inline Fuse - The inline cable built-in a 10A fuse for over-load and short-current protection. With replaceable, never worry about blowing fuse. Certificated by CE/ROHS/UL, say goodbye to overcharge.
LED Digital Display -- Built-in LED digital display voltage helps to monitors the health of your vehicle's battery and electrical system in real-time. and allows quick and easy usage in the dark or at night.
Waterproof and Heat Resistant -- Made of super Nylon materials with IP66 waterproof grade, does good job on high temperature and low temperature environments ( - 4F to 176F). Ideal for car, motorbike, boat and marine.
Warranty - Each product from HiGoing enjoy 60 days money back and 12-month warranty. If you have any problem with our products, please feel free to contact us via Amazon Message with your order# and details, we will always be more than happy to assist you.

Description

[Updated Version] HiGoing Dual QC3.0 USB Charger Socket for Marine Car Boat Motorcycle Mobile

QC3.0 USB Fast Charging
Adopted high tech of QC3.0 USB fast charging port, it is almost suitable for charging all cell phones and tablets at high speed.

Safety Charging
It can identify the electricity of your devices intelligently and charge your devices steadily and safely. Protects your devices from over-heat, over-current, over-voltage, overload, under-voltage and short-circuit.

Waterproof
IP66 waterproof grade allows it does good job on boat.

Specifications:
Power Input: DC 12V-24V
USB Output Voltage: 5V
Output Current: 5V2.5A 9V2A 12V1.5A
MAX Power: 36W
Product Dimension: 5.4cm x 3.7cm (2.12in x 1.46in)
Portiforium Dimension: 2.9cm (1.14in)

Package:
1 x Car Charger
2 x Blue Connector Cap

Conclusion

By our suggestions above, we hope that you can found the best marine usb outlet waterproof for you. Please don't forget to share your experience by comment in this post. Thank you!
Jill Rose