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20 Best Mah Tester of 2023 – Romance University
After hours researching and comparing all models on the market, Romance University finds out the Best Mah Tester of 2023. Check our ranking below.
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- UPGRADED MULTIFUNCTIONAL USB C POWER METER: Detects the charging status and process of your USB-enabled or type c-enabled devices. Supports QC3.0, QC2.0 and BC1.2. A Must Gadget checks the charging performance (charging speed and quality) of the output wall/car/solar panel chargers and USB charging cables. It can be also used to find the highest current of the Wireless Charger, and test capacity and electric energy of power bank.
- PROFESSIONAL SAFETY GUARD: Featured with over-voltage protection, over-current protection, under-voltage protection, low energy protection and alarm system. This upgraded USB Type C tester can detect safety and maximally protect the appliances from damaging. It will cut off output automatically and alarm by sound, while it will save data when power off suddenly.
- MULTIPLE COLOR SCREEN DISPLAY MODES: New upgraded version offers 8 LCD main color screen display interfaces, allowing switching the display interface by pressing the key. With the new interface settings, this instrument can monitor voltage, current, capacity, electric quantity, power, load impedance, D+/D- voltage and other data of USB.
- WIDE RANGE OF APPLICATION: Thanks to the PD protocol quick charging mode measurement technology, this new multimeter supports the updated iPhone X mobile phone. (Support iphone 8 / 8P / iPhone Xs quick charging, 29W power, 5V3A / 9V3A / 12V2.5A / 15V2A). It also can be applied to test other type C devices, Compatible With Galaxy S10/S9/Note 10 +, ChromeBookPixel, OnePlus and More.
- EVERSAME PROMISE: We have always believed that a stable and continuously improve product quality. We trust our products and we offer worry-free 18-month. For any reason you are unsatisfied with our product, just feel free to contact support for exchange or refund. WHAT WE PROVIDE: 1X USB Tester. (Note: If the USB Tester doesn’t display any parameters, please insert the small adapter being sent with the package into the side hole on the USB Tester, to trigger the PD Charging Function. )
- Multi-function: This USB tester is designed to detect voltage, current, capacity, electric quantity, power, temperature, resistance, charging time and other data of the USB C devices, which is convenient for testing power supply and quality.
- Detect Various Fast Charging Protocols: The Type-C USB tester supports QC2.0/3.0/4.0 and Super VOOC protocol charging, but the name of the fast charging protocol will not be displayed on the USB tester.
- Measuring Data is Guaranteed: Power-off storage function that stores capacity and energy data when the mobile power is turned off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobile power.
- Wide Applicability: This USB C Tester Measuring voltage: 4V-30V; measuring current: 0-6.5A. YOJOCK Tester are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts.
- Button Function: 1.Click the button once to switch screens in a cyclical manner; 2.Double-click the button to rotate the displayed content; 3.Press and hold the button (3 seconds): Clear all capacity, amount of electricity, and time.
- Power supply voltage: DC4.5-6V (micro USB interface) ; Working current: less than 70mA. Supported by current: the maximum 3.000A resolution 0.001A.
- The maximum measurement error voltage: 1%+0.03V ; The maximum measurement error of current: 2%+-0.010A.
- The discharge voltage: 1.00V-15.00V resolution 0.01V ; Termination voltage range: 0.5-11.0V.
- Board size: 50mmX34mm ; Product size: 50mmX36mmX17mm (length X width X high maximum position size, containing copper foot height)
- Note: this circuit in order to improve the voltage measurement accuracy, specially designed DC bias.when the terminal is what all don't pick will display a small voltage, does not affect the actual measurement.if you are short connected with the input terminal (absolute 0V) will display 0. To understand the principle can consult the superposition theorem in electrical engineering.
- 1pcs 18650 Battery Capacity Tester LCD Display Digital Automatic Charge and Discharge Internal Resistance Tester MAh MWh Lithium Battery Type-C Port Tester with Type-c to USB Cable
- Supports four-channel capacity and internal resistance measurement.（(User manual available if do as follow: click "DWEII"(you can find "Sold by DWEII" under Buy Now button), in the new page, click "Ask a question".)we will send you the manual asap）
- Measurement parameters: Working voltage: DC5V;Detection voltage: less than or equal to DC5V;Capacity measurement range: 0~99999mAh;Battery internal resistance measurement: support;Measurement error is about 10%;Display real-time voltage/power/current: support;Discharge load: 10W.
- Applications：The 18650 battery capacity tester is specially used to check the capacity, internal resistance, voltage, current, power and other information of the 18650 battery.The integration of charge and discharge saves the tedious operation of disassembling and assembling the battery when replacing the equipment。
- The 1.77 inch screen simultaneously displays information such as internal resistance, capacity, voltage, current, and battery level, providing comprehensive data for analysis
- 【Upgraded Multifuntional USB C Power Meter】The USB tester can detects Voltage, Current, Capacity, Electric Quantity, Power, Temperature, Resistance, Charging Time and other data of the USB or type C Port Devices. A Must Gadget checks the charging performance(charging speed and quality) of the output wall/car/solar panel chargers and USB charging cables. It can be also used to test capacity and electric energy of power bank. Measuring voltage: 3.6V-32V; measuring current: 0-8.0A.
- 【Latest Upgraded IPS Color Display Screen】New upgraded version offers 8 IPS main color screen display interfaces, allowing switching the display interface by pressing the key. The fonts are larger in one mode, which can read the data at a glance and facilitate viewing. This instrument can monitor Voltage, Current, Capacity, Electric Quantity, Power, Load Impedance, ect..
- 【Wide Range of Application】The USB power meter comes with A OTG adapter, supports PD3.0/PD2.0, QC3.0/QC2.0, BC1.2 and USB A or USB C port, supports the updated iPhone 13 Pro mobile phone. (Support iphone 13/12/11/X/iPhone Xs quick charging, 29W power, 5V3A/9V3A/12V2.5A/15V2A). Compatible with new MacBook Pro, MacBook, iMac, iMac Pro, Dell XPS, Acer Aspire, HP Spectre, Lenovo Thinkpad, Eluktronics, Razer Blade Stealth, Chromebook, Microsoft Surface Pro and more Type C devices and chargers.
- 【Test Power Bank Capacity】Before testing the power Bank,please fully charge the power bank,insert the usb voltage tester and double-click to clear the data,then connect the load or mobile phone (continuous discharge is required).ensure that the discharge voltage is 5V or 9V.(mAh is multiplied by 1.35 when discharge voltage 5V, and mAh is multiplied by 2.45 when discharge voltage is 9V, which is equal to the exact capacity of the battery of the power bank.)
- 【Professional Safety Guard】This USB C tester featured with over-voltage protection, over-current protection, under-voltage protection, low energy protection. This upgraded USB Type C tester can detect safety and maximally protect the appliances from damaging. It will cut off output automatically, while it will save data when power off suddenly.
Last update on 2025-07-12 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
How Do You Buy The Best Mah Tester?
Do you get stressed out thinking about shopping for a great Mah Tester? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Mah Tester, which is why we have assembled a comprehensive list of the greatest Mah Tester available in the current market. We’ve also come up with a list of questions that you probably have yourself.
Romance University has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Mah Tester that you consider buying. Your questions might include the following:
- Is it worth buying an Mah Tester?
- What benefits are there with buying an Mah Tester?
- What factors deserve consideration when shopping for an effective Mah Tester?
- Why is it crucial to invest in any Mah Tester, much less the best one?
- Which Mah Tester are good in the current market?
- Where can you find information like this about Mah Tester?
We’re convinced that you likely have far more questions than just these regarding Mah Tester, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.
Potential sources can include buying guides for Mah Tester, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Mah Tester. Make sure that you are only using trustworthy and credible websites and sources.
Romance University provides an Mah Tester buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Mah Tester currently available on the market.
This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:
- Brand Value: Every brand of Mah Tester has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
- Features: What bells and whistles matter for an Mah Tester?
- Specifications: How powerful they are can be measured.
- Product Value: This simply is how much bang for the buck you get from your Mah Tester.
- Customer Ratings: Number ratings grade Mah Tester objectively.
- Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Mah Tester.
- Product Quality: You don’t always get what you pay for with an Mah Tester, sometimes less, and sometimes more.
- Product Reliability: How sturdy and durable an Mah Tester is should be an indication of how long it will work out for you.
Romance University always remembers that maintaining Mah Tester information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.
If you think that anything we present here regarding Mah Tester is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.
FAQ:
Q: How do you measure a battery’s mAh rating?
A: You can measure a battery’s mAh rating using a multimeter, a resistor to act as a load and a stopwatch to measure elapsed time. Step 1 Check the meter’s battery by setting the multimeter’s control knob to the battery check position. If the meter’s internal battery is depleted, replace it.
Q: Do you need a Li-ion capacity tester?
A: When it comes to building the battery packs, Li-ion cells are one of the best choices without the doubt. But if you get them from old laptop batteries then you might want to do a capacity test before building the battery pack. So today I will show you how to make a Li-ion capacity tester using an Arduino.
Q: How do you check the battery on a multimeter?
A: Check the meter’s battery by setting the multimeter’s control knob to the battery check position. If the meter’s internal battery is depleted, replace it. Some lower-cost multimeters do not have a “battery check” feature. If you turn the meter’s main knob through its settings and the meter display doesn’t turn on, the battery is dead; replace it.