Product Overview
Discover the unparalleled precision of our tester, designed to meticulously and accurately measure the internal resistance and voltage of various batteries. Seamlessly save data automatically, ensuring efficiency and reliability.
Experience the versatility of our tester with its expansive testing range, accommodating measurements from 0 to 100V and 1µΩ to 200Ω for an array of battery types.
Unleash the potential of diverse applications with our tester, perfect for resistance testing of disposable batteries, various rechargeable batteries, and even non-battery items, meeting every testing requirement.
Prioritize safety with our comprehensive protective features, including short circuit protection, overcurrent protection, reverse connection safeguards, and positive/negative voltage support, providing peace of mind during usage.
Empowered by a robust built-in lithium battery, our tester offers prolonged operational endurance, ensuring long-lasting performance and reliability.
AUTO Range:
Dynamically adjusts the range according
to the internal resistance of the specific
measured object, automatically switching to ensure accurate readings with ease.
200Ω Measurement Range: Extending from 20Ω to 200Ω, offering comprehensive measurement capabilities.
2Ω Measurement Range: From 200mΩ to 2Ω, designed for precision in smaller resistance values.
200mΩ Measurement Range: Ranging from 20mΩ to 200mΩ, achieving exact measurements in low resistance scenarios.
20mΩ Measurement Range: Capable of measuring from 1µΩ to 20mΩ, perfect for ultra-low resistance requirements.
Voltage Range Switching:
Commence with the default AUTO range, effortlessly switch voltage ranges manually within the test interface by pressing the designated key.
| 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) |
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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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