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Description
UNI-T UT677ABattery Internal Resistance Tester 3. 5Inch Color Screen, Voltage Test: 0. 000V~71. 00V, Temp Test: 10. 0~60. 0, Internal Resistance Test: 0. 000m~3. 100, Response Time: 200ms, 300mA Min 500mA Max, 3. 7V Lithium Battery, 190x12151mm 3. 5Inch Battery Internal Resistance Tester Overview The battery internal resistance tester is a measuring instrument used to measure the internal resistance, voltage, and temperature of rechargeable batteries such as lead
Battery Internal Resistance Tester 3.5Inch Color Screen, Voltage Test:0.000V~±71.00V, Temp Test:-10.0℃~60.0℃, Internal Resistance Test:0.000mΩ~3.100Ω, Response Time:200ms, 300mA Min/500mA Max, 3.7V Lithium Battery, 190x121×51mm
3.5Inch Battery Internal Resistance Tester
Overview
The battery internal resistance tester is a measuring instrument used to measure the internal resistance, voltage, and temperature of rechargeable batteries such as lead-acid batteries and lithium batteries to judge the health status of the battery.
It can also be used as an instrument to measure the ESR parameters of electrolytic capacitors. UT677A uses the AC 4-terminal test method to measure the internal resistance of the battery, which can measure the correct measurement value without being affected by the contact resistance between the test lead, the terminal, and the battery electrode.
The whole machine is high-grade and beautiful, with a wide range, high resolution, convenient operation, convenient carrying, accurate, reliable, stable performance, and strong anti-interference ability. It is an indispensable instrument for battery production, battery installation, equipment production, equipment maintenance, and other scenarios.
Features
- Internal resistance test: 0.000mΩ~3.100 Ω
- Voltage test: 0.000V~±71.00V
- Temperature test: -10.0℃~60.0℃
- Fast response: ≤200ms
- Measurement result judgment function
- 5000 pieces of data storage & rechargeable lithium battery
- PC software supported
- Bluetooth APP (Android) supported
Specifications
| Function | Range | Resolution |
| Battery Internal resistance range | 0.000mΩ~3mΩ / ±1%fs. ±20dgt | 1uΩ |
| 3.000mΩ~30mΩ / ±0.5%fs. ±15dgt. | 10uΩ | |
| 3.000mΩ~300mΩ / ±0.5%fs. ±15dgt. | 100uΩ | |
| 300mΩ~3Ω /±0.5% fs. ±15dgt. | 100mΩ | |
| Battery Voltage range | 0.000V~±7 V/±0.2%fs. ±10dgt. | 1mV |
| 7 V~±71.00V/±0.2 % fs. ±10dgt. | ||
| Temperature range | -10.0°C~60.0°C (single range)/ ±1.0℃ | 0.1℃ |
| Accuracy Guaranteed Temperature Humidity | 23℃±5℃, <75%rh | |
| Features | ||
| Measuring method | 1. Internal resistance measurement: 1KHz AC 4-terminal test method, open-circuit terminal voltage 3V max 2. Measuring current: 2.0mA~200mA (different measuring currents in different ranges) 3. Temperature measurement: NTC temperature sensor (10KΩ at 26°C) 4. A/D conversion method: successive approximation type 5. Display update frequency: 5 times/second |
|
| Screen | 3.5 inches (320*240, 16-bit true color screen) | |
| Response time | 200ms | |
| Measuring time | About 2 sec | |
| USB interface | Read real-time measurement values, read historical measurement records | |
| Bluethooth app | Yes | |
| Data hold and storage | 1. Manual hold and storage, automatic hold and storage 2. Up to 5000 set measurement data storage |
|
| Measurement judgment function | PASS, WARNING, FAIL judgment thresholds can be preset | |
| Power | 1. DC 3.7V lithium battery 2. 5-bar display of power, reminding to charge in time |
|
| Power consumption | 300mA MIN/500mA MAX | |
| Automatic shut-down | Around 15 minutes | |
| Weight | 480g (including battery) | |
| Dimension | 190mm×121mm×51mm (L*W*H) | |
| Working temperature and humidity | -10℃～40℃; below 80%RH | |
| Storage temperature and humidity | -20℃～60℃; below 70%RH | |
| Insulation resistance | Above 20MΩ (500V between circuit and case) | |
| Puncture test | AC 3700V/rms (between circuit and case) | |
| External magnetic field | <40A/m | |
| External electric field | <1V/m | |
| Suitable for safety regulations | IEC 61010 | |
Downloads
Additional Information
| Device | Tester |
| Type | 3.5Inch | Battery | Internal | Resistance |
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.8 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
Informative & practical!
Format: Paperback
Erin’s book is a very informative and straightforward resource for anyone interested in midterm rental hosting. The book breaks everything down clearly, and I appreciated how many practical techniques Erin includes—things you can actually apply right away. It’s easy to follow, well-organized, and gives a solid understanding of how to set up, market, and manage successful midterm rentals. A great read for both beginners!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
★★★★★ 5
Insightful
Format: Paperback
This book has been an absolute game-changer for anyone navigating the world of midterm rentals and seeking actionable insights to succeed. Unlike many other real estate books, it is refreshingly devoid of unnecessary fluff and gets straight to the point, offering invaluable advice that can be put into practice right away.
Erin's expertise shines through in every page of this guide. Her approach is practical, well-organized, and laser-focused on helping hosts make the most of their 30+ day stays. What sets this guide apart is its emphasis on actionable insights. It's not just about theory; it's about real-world strategies that can be implemented immediately. Erin doesn't just tell you what to do, she explains why it works and how to adapt it to your unique situation.
One of the things I appreciated most was the structure of the guide. Divided into four parts, it covers every essential aspect of midterm rentals, from property preparation and pricing strategies to guest communication and handling potential challenges. The step-by-step breakdown of each part makes it easy to follow along, whether you're a seasoned host looking to refine your approach or a newcomer eager to dive into the world of midterm rentals.
Erin's Guide to Midterm Rentals doesn't overwhelm with jargon or complicated concepts. Instead, it provides clear and concise explanations, making it accessible to readers with varying levels of experience. The practical examples and case studies sprinkled throughout the guide add a real-world dimension, helping readers envision how the strategies can be applied to their own situations.
In a market flooded with real estate resources, Erin's Guide to Midterm Rentals stands out as a beacon of practicality and usefulness. It's evident that the author genuinely cares about her readers' success and has taken the time to distill her own experiences and insights into a guide that is both informative and inspiring.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 22, 2023
★★★★★ 5
Game changer
Format: Paperback
I never write reviews and this will be short. This book is a game changer for me. Erin presents an organized knowledgeable review of Midterm rentals with lots of legal advise, check lists, and common sense. This information has taken the scary out of starting a business using my basement. My book is well worn from reading it so many times. Have ordered her second book and will wear it out also. Thanks you Erin
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025
★★★★★ 5
Loved this book !!!
Format: Paperback, Format: Paperback
Great information!!! Erin answered alot of questions I had about MTR. I was able to implement some things she had recommended in her book. No joke, I got my first tenant the following weekend. I still have some questions about minor things but vía her you tube channel I know I will find the answer. One more thing, she will send you a copy of the lease she uses and the welcome letter she provides her tenant if you send her a picture of the book to her email. That helped a lot! I recommend this book. Go get your copy. Worth it!!!!!
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Reviewed in the United States on April 20, 2023
★★★★★ 5
As expected
Format: Kindle
This is a great book to get started. Its an easy read with some relevant resources. If you are thinking of renting midterm and have little experience I would suggest this book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 18, 2025