Product Overview
Discover unparalleled precision with our tester, designed to measure internal resistance and voltage of batteries with exceptional accuracy. It offers the convenience of automatic data saving, ensuring your measurements are always stored securely.
Our meter covers a vast range, capable of testing voltage from 0 to 100V and resistance from a minuscule 1µΩ to an extensive 200Ω. It is an adaptable tool for various testing needs.
Embrace versatility with our device, adeptly performing resistance tests on disposable batteries, diverse battery types, and even non-battery items. It's your go-to tool for a wide array of applications.
Engineered with safety in mind, this product features essential protections including short circuit, overcurrent, reverse connection, and both positive and negative voltage safeguards.
Equipped with a robust, large-capacity lithium battery, this device promises prolonged operation, making it ideal for extensive usage without constant recharging.
AUTO Range:
The range adapts dynamically based on the internal resistance
of the object being measured.
It intuitively switches to the most suitable
200Ω Measurement Range: 20Ω~200Ω
2Ω Measurement Range: 200mΩ~2Ω
200mΩ Measurement Range: 20mΩ~200mΩ
20mΩ Measurement Range: 1µΩ~20mΩ
Voltage Range Switching:
The default setting is AUTO range. For customized testing, you can manually switch the voltage range by pressing the key in the
test interface.
| Internal Resistance Error Rate |
±0.5% rdg ±10 dgt |
| Voltage Value Error Rate |
±0.1% rdg ±10 dgt |
| Resistance Test Range |
1µΩ~200Ω |
| Voltage Test Range |
0V~100V |
| Test Result Storage |
160 Groups |
| Lithium Battery Capacity |
1450mAh |
| Charging Voltage |
5V |
| Charging Interface |
Type-C |
| Charging Time |
About 3 Hours |
| Auto Shutdown |
No Operation Within 10 Minutes |
| Working Temperature |
-10°C~60°C (14ºF~140ºF) |
| Storage Temperature |
-20ºC~80ºC (-4ºF~176ºF) |
For your convenience, please note that current shipping solutions for the chosen quantity are not available. We encourage you to reach out to our dedicated customer service team, who are ready to assist with tailored shipping options that meet your needs.
Engage in transactions with complete peace of mind, thanks to our robust SSL encryption and PCI DSS data protection protocols. Our reliable refund policy ensures a refund if your order isn't shipped, isn't complete, or arrives with issues. Rest assured, all orders on our platform are fully safeguarded.
1. Does the tester come with a charger?
A: The tester is designed to be charged with a 5V power source and comes equipped with a Type-C charging cable. While a charger is not included, you can conveniently use a standard mobile phone charger.
2. Can I measure AC voltage?
A: The tester is not designed to measure AC voltage. Please avoid inputting AC voltage or DC voltage higher than 100V to ensure safe operation.
3. Does the tested battery need to be fully charged before retesting?
A: For most batteries, whether fully charged or not, the internal resistance test results remain consistent as the change in resistance is minimal. However, for a small number of battery types, a substantial power loss may affect the accuracy of the test results. In such cases, it is recommended to recharge the battery before testing.
4. Is the test result bouncing or unstable?
A: If the test results are unstable or show fluctuations, it may be due to poor contact between the test clamp and the battery, instability of the battery, the presence of an oxide layer on the electrode, or interference from a strong magnetic field nearby.
5. Can you measure large-capacity batteries?
A: Yes, the tester can measure large-capacity batteries. However, note that the internal resistance of such batteries is usually very small. Often, the resistance of the terminal connection line is higher than the battery's own resistance. Ensure that the clip is placed correctly, preferably on the original battery terminal, and maintain good contact during the test.
6. Can I test batteries without any markings?
A: This versatile tester can evaluate any type of battery, including both rechargeable and non-rechargeable varieties.
7. Why does testing the internal resistance determine whether the battery is good or bad?
A: Over time, as a battery is used, its capacity diminishes and its internal resistance increases-a natural physical phenomenon. A higher internal resistance indicates a reduced ability for current to pass through, which signifies lower battery performance. Hence, monitoring internal resistance is a reliable method to assess battery quality.
8. What is the normal internal resistance for an 18650 battery?
A: Ideally, the internal resistance should be around 20mΩ. Generally, it is about 30mΩ, and anything over 50mΩ indicates a poorer quality.
9. How much battery capacity can I test?
A: This tester is capable of testing any battery capacity, as long as the internal resistance lies within the range of 0-200Ω and the voltage is below 100V.
10. Can I test the internal resistance of a battery online? Can I test the UPS power supply?
A: Yes, in most scenarios, you can perform online testing without disconnecting the battery. This is especially applicable for UPS batteries under maintenance, which can be tested continuously.
11. What should I do if the device crashes?
A: Although no crashes have been reported, we have included a reset function. When you insert the charging cable to charge the tester, it will automatically reset itself.
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