Top 9 Meter Voltage Tester – Cell Phone Portable Power Banks

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USB Meter X-DRAGON Digital Multimeter USB 2.0,Multifunctional Electrical Tester Capacity Voltage, Current Power Meter Detector Reader with Dual USB Ports,LED Display,7 ModesUpgraded

X-DRAGON #ad - Widely used: perfect for testing how fast a USB cable or USB power charger, such as power bank, solar charger. Measuring range: voltage 3. 2-15v current 0-3a accuracy: +/- 1%. Dual ouput: output one is used for both charging and data transfer, Output two is for large current fast charging. Display: simultaneously displaying of Amp and Volt in real-time. 7 modes monitor: the usb monitor can display voltage, capacitance and power, current, press the button to switch among seven different display modes.
BrandX-DRAGON #ad
ManufacturerX-DRAGON #ad
Height0.9 Inches
Length3.3 Inches
Weight0.02 Pounds
Width2 Inches
Part NumberCECOMINOD006769

2. Plugable


Phones and Chargers, Plugable USB C Power Meter Tester for Monitoring USB-C Connections, Digital Multimeter for USB-C Cables, Laptops

Plugable #ad - Broad usb support - used as a data and power quality meter, chargers, usb-c charging. Bidirectional - usb power meter can be connected in either orientation, allowing for the full range of USB Power Delivery voltage from 5 to 20V 4-20V, 50mA-10A operating range.

New orientation button lets you flip the screen 180 degrees. All of our products are backed with a 2-year limited parts and labor warranty as well as Seattle-based email support. 2 year warranty - we love our plugable products, and hope you will too. Updated oled display is brighter and easier to read. Use usb tester inline with usb-c docking stations, accessories, USB-C Alt Mode video, device allows USB data pass through, etc.

Small and tough - small enough to go anywhere you need a usb c voltage meter. At a glance - usb c tester: monitor usb-c power and charging. Measure voltage and amperage. Visualize the directional flow of electrical current. Not compatible with Thunderbolt 3 devices. Even fits most phones and tablets without removing protective case. Strengthened usb-c connections ensure it's sturdy enough to be your go-to USB C power tester.
BrandPlugable #ad
ManufacturerPlugable #ad
Height3.5 Inches
Length3.5 Inches
Weight0.04 Pounds
Width0.75 Inches

3. Homern


Charger Doctor Digital Multimeter USB Power Meter Tester Voltage Monitor Current Detector with mAh Capacity Readout for Chargers, Power Banks, Cables, Solar Panels

Homern #ad - Easy to use: very easy to use current and voltage mter, you do not require deep technical knowledge to use it;just plug and play, and you will be able to see what the cable/adapter combination is delivering to your device.

Great for checking USB cables, chargers and adapters'performance and function. Stop hoarding cables and get rid of the crappy ones. Anyone else needing a manual google "KCX-017 Power Bank User Manual". Works great for determining how your phone is charging, or determining how optimistically they have rated your power banks capacity or output amperage. Handles usb and micro-usb connections. Does not affect the data transmission. A fun and informative gadget works well for troubleshooting. Great combination: the usb power tester is for measuring the volts, cables, amps of your USB chargers, computers and Mah capacity of your power banks.
BrandHomern #ad
ManufacturerHomern #ad
Height0.59 Inches
Length2.36 Inches
Width1.1 Inches
Part NumberVoltage Tester
ModelCharger Doctor

4. StarTech


USB Voltage and Current Meter LCD Display & LED Light, USB Fast Charge Adapter USBAUBSCHM, USB Voltage and Current Tester Kit

StarTech #ad - Test the voltage and current consumption of your Apple and Android devices. Fast charge your tablet and smartphones from your computer or laptop USB port. Monitor how well your phone and tablet are charging as well as your device's current and voltage consumption. Usb voltage tester / usb fast charge adapter / usb voltage monitor / current and voltage lcd display and LED Light / USB Current Monitor / USB Voltage and Current Meter with Micro-USB Cable.
BrandStarTech #ad
ManufacturerSTARTECH.COM #ad
Height0.83 Inches
Length7.95 Inches
Weight0.04 Pounds
Width6.22 Inches
Warranty2 year warranty

5. JZK


12v 24v Battery Voltage Temperature Meter Monitor Tester Gauge Indicator, JZK 2 in 1 car Truck Bus Voltmeter & Thermometer Display

JZK #ad - Jzk 2 in 1 car truck bus voltmeter & thermometer display, 12v 24v battery voltage temperature meter monitor tester gauge indicator. Safety: built-in fuse allows safe usage. With external and bendable temperature sensor. Dual led display panel blue & red, - With high bright LED, clearly seeing the display. Dual functions: display simultaneously in-car temperature -10 ℃ to 80 ℃ and car battery jar voltage. Easy to use: no need battery, Just insert the the product into the car cigar socket.
BrandJZK #ad
ManufacturerJZK #ad
Height1.57 Inches
Length2.76 Inches
Weight0.08 Pounds
Width1.57 Inches
Part NumberJZK

6. Estone


USB Charger Doctor, In-line Voltage and Current Meter

Estone #ad - Compact and easy to carry, no additional power supply, plug and play. It can measure the USB-powered devices empty and easy to use and practical. Wide range of applications, any electronic product, any phone, Easy to use. Can measure usb interface, cell phone charger, u disk and other products or power supply situation. Detect any usb charger such as PC USB, home charger, car charger.
BrandEstone #ad
ManufacturerEstone #ad
Height0.55 Inches
Length2.05 Inches
Width1.3 Inches
Part Number1



Dual USB Car Charger,4.8A Output,Cigarette Lighter Voltage Meter Compatible with Apple iPhone,iPad,Samsung Galaxy ,LG ,Google Nexus,USB Charging Devices,Silver

LIHAN #ad - The slim aluminum profile minimizes any obstruction while charging. Output: 4. 8a; size: 2. 3" x 1. 4" x 1. 4". Battery voltage meter:display the voltage of vehicle's battery when no charging.

Let you always monitoring the health of battery and peace of mind when drive. A flashing leD display indicates a potential vehicle voltage problem. With 2 usb ports, you can conveniently charge 2 devices at same time. Compatible with iphone, Samsung, Tablets, etc 2.1a, ipad, htc, etc 2.1a. Compact design for more portability :Fits in the palm of your hand. Tech specs : input: 12v-24v.

Dual usb car charger :powered by your car’s dc outletcigarette lighter port. Total 4. 8 a; allows charging of two devices at once. Smart over-charge protection: intelligent circuit design protects against short circuiting, overheat, overcurrent, and over charge. Charges mobile phone quickly and efficiently. And protect the safety of charging device.
BrandLIHAN #ad
Height1.3 Inches
Length2.08 Inches
Weight0.05 Pounds
Width1.3 Inches
Part Number4326587863



For iPhone 7 / 6s / Plus, Note 5/4, Galaxy S7 / S6 / Edge/Plus, Jebsens 4.8A 24W Dual USB Car Charger Volt Meter Car Battery Monitor with LED Voltage & Amps Display, iPad Pro/Air 2 / Mini

JEBSENS #ad - Advanced charging technology: dual usb ports pumps out 24w of power charge up to 4. 8 amps or 2. 4 amps per port. Charging cable not included 1 year guarantee provided by Manufacturer. The leds are bright enough to read the display without being a distraction while driving.

Easily charge your favorite mobile devices including the iPad max speed, PDAs, Galaxy, iPhone max speed, Digital Cameras, Blackberry, iPod, MP3 Players, HTC, and Mobile Phones. Money back Guarantee from JebsensDirect. Package includes: 1 x jebsens 4. 8a dual usb car charger with led display. When charging a device, it cycles between device's charging current, and the voltage of the vehicle's car battery. Need a car mount? check out the jebsens new cd slot Car Mount ASIN: B01LWNB10F - Enjoy hands free driving! Over-charge protection – the mini usb car charger is auto power off when input/output is greater than safety current, protects against over-heat, over-current and over-charging.

Compact design - one of the industry's smallest USB car chargers, featuring two USB ports and an LED Display make it easy to access after dark. Led display - led digital luminescence tubes; monitor the voltage of the vehicle's car battery when not charging any devices.
BrandJEBSENS #ad
ManufacturerJEBSENS #ad
Part Number4326585489



Galaxy Note 8/S9/S10+/S8-Black, Dual QC3.0 Port 6A/36W Fast USB Car Charger All Metal Cigarette Lighter USB Charger Voltage Display Compatible with 11/11 pro/XR/X/XS/8, AINOPE Car Charger Adapter

AINOPE #ad - Please pay attention when the car voltage is under 12V. Car voltage detector: ainope fast car charger can monitor the vehicle's electrical system and alternately display car voltage & current on the screen via soft LED light to keep you informed of the car's health.

Our reliable customer Service will be sure to reply within 24 hours and offer proper solutions for you. Please note: iphone don't not support QC3. 0, but it still fast charge your iphone with 2. 4a. Ainope fast car charger adapter has multiple protection against over-current, overcharging, which won’t be melting and fire, overheating and high temperature will guard the safety of your devices. Universal compatibility: ainope dual usb car charger is compatible with any Android and iOS mobile devices and charges your mobile device at maximum charging speed your device supports.

We care for you: welcome to contact us if you have any questions or concerns. Dual qc3. 0 usb efficient charging: with total output 36w, ainope cigarette lighter usb charger can charge two devices simultaneously at QC3. 0 speed and charging from 0 to 55% in 35 minutes; AINOPE fast QC3. 0 car charger adapter provides 4x faster charging speed to compatible devices.
BrandAINOPE #ad
ManufacturerAINOPE #ad
Height1.26 Inches
Length2.35 Inches
Weight0.15 Pounds
Width1.26 Inches
Part NumberAV831-BLACK