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HZXD-II Portable Battery Internal Resistance Tester
The Battery Internal Resistance Analyzer, also known as the general-purpose rechargeable battery internal resistance tester, is designed to measure the internal resistance, voltage, and temperature of rechargeable batteries such as lead-acid and lithium batteries. It serves as an instrument to assess the health status of batteries and can also be used for measuring the Equivalent Series Resistance (ESR) parameters of electrolytic capacitors (for reference only). This instrument employs AC 4-terminal testing method to measure battery internal resistance, ensuring accurate measurements unaffected by contact resistance between test leads, terminals, and battery electrodes. It features functions such as data storage, data retrieval, alarms, and automatic shutdown. The device is sophisticated in design, broad in measurement range, high in resolution, easy to operate, portable, accurate, reliable, and stable in performance, with strong anti-interference capabilities. It is indispensable in scenarios such as battery production, battery installation, equipment production, and equipment maintenance.
The general-purpose rechargeable battery internal resistance analyzer is controlled by a microprocessor, equipped with a 16-bit ADC internally to accurately detect battery internal resistance, voltage, and temperature. It operates without stopping the UPS system during measurement, using AC low-resistance measurement and noise reduction technology. This allows measurements to be conducted without interrupting the normal operation of the equipment being tested, significantly reducing testing time. Additionally, it includes features such as data storage, bar graph display, data upload to computers, and wireless measurement and data retrieval via Bluetooth connection with smart devices like computers, smartphones, and tablets.
HZXD-II Digital Battery Internal Resistance & Voltage Tester
Detailed Technical Specifications:
| Parameter Name | Specific Specifications |
| Measurement Range (Internal Resistance) | 0.000mΩ ~ 3Ω |
| Internal Resistance Resolution | 1μΩ |
| Internal Resistance Measurement Error | ±0.5% |
| Measurement Range (Voltage) | 0.000V ~ 70V |
| Voltage Resolution | 1mV |
| Voltage Measurement Error | ±0.2% |
| Measurement Method | 4-Terminal AC Measurement Method |
| Display Method | High-Resolution Color Touchscreen Display |
| Data Storage | Supports Storage of Data for 100,000 Batteries |
| Data Transmission | USB Interface + Bluetooth Wireless Transmission |
| Power Supply | Built-in Rechargeable Lithium Battery (8-12 hours of continuous operation) + AC 100-240V External Power Supply |
| Operating Environment | Temperature: -20°C to 70°C; Humidity: ≤80% RH |
| Protection Class | IP54 Rating (Drop-resistant, Dust-proof) |
| Dimensions | 186 mm × 98 mm × 40 mm (Dimensions based on standards for similar portable instruments) |
| Weight | Approx. 0.45 kg (Lightweight handheld design) |
| Measurement | Maximum Display | Maximum Resolution | Testing Accuracy |
| 0.000mΩ~3 Ω | 3.100 Ω | 1 uΩ | ±0.5 % |
| Measurement | Maximum Display | Maximum Resolution | Testing Accuracy |
| 0.000V~70 V | ±71.00 V | 1 mV | ±0.2 % |
| Measurement | Maximum Display | Maximum Resolution | Testing Accuracy |
| -10.0ºC~60.0ºC | 60.0ºC | 0.1ºC | ±1.0ºC |
HZXD-II Multifunction Battery Internal Resistance Analyzer
| Functions | Battery internal resistance, battery voltage, temperature |
| Accuracy Assurance for Temperature and Humidity | 23ºC±5ºC,Below 75%rh |
| Power | DC 3.7V lithium battery |
| Resistance Resolution | 1 u Ω |
| Voltage Resolution | 1 mV |
| Temperature Resolution | 0.1ºC |
| Measurement Ranges | Internal Resistance: 0.000 mΩ to 3.100 Ω (4 ranges) |
| Voltage Measurement: 0.000V to ±71.00V (2 ranges) | |
| Temperature Measurement: -10.0ºC to 60.0ºC (single range) | |
| Maximum Input Voltage | DC 70V (+ measurement terminal to - measurement terminal), no AC input allowed |
| Measurement Method | Internal Resistance Measurement: 1kHz AC 4-terminal test method, open circuit terminal voltage 3V max Measurement Current: 2.0mA to 200mA (varies with range settings) Temperature Measurement: NTC temperature sensor (10KΩ at 26ºC) A/D Conversion Method: Successive approximation type Display Update Rate: 5 times per second |
| Response Time | 200ms |
| Measurement Time | Approximately 2 seconds |
| LCD Size | 70.1mm × 52.6mm / 3.5 inches (320×240 resolution 16-bit color screen) |
| Instrument Dimensions | Length × Width × Height 190mm×121mm×51mm |
| USB Interface | Includes USB interface for data storage, upload to computer, and saving for printing |
| Bluetooth Connection | Yes |
| Hold and Storage Functions | Manual hold and storage, automatic hold and storage |
| Measurement Judgment Function | Preset PASS, WARNING, FAIL threshold judgments |
| Battery Voltage | Displays 5 levels of battery capacity, alerts for low battery voltage to prompt charging |
| Auto Power Off | Automatic shutdown after approximately 15 minutes of inactivity (can be disabled in settings) |
| Power Consumption | 300mA MIN / 500mA MAX |
| Weight | Instrument: 480g (including battery) |
| Operating Temperature and Humidity | -10ºC~40ºC;≤80% RH |
| Storage Temperature and Humidity | -20ºC~60ºC;≤70% RH |
| Insulation Resistance | ≥20MΩ (between circuit and housing at 500V) |
| Withstand Voltage | AC 3700V/RMS(between circuit and housing) |
| External Magnetic Field | <40A/m |
| External Electric Field | <1V/m |
| Compliance with Safety Standards | IEC 61010 |
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Core Application Scenarios (Precisely Tailored for Multiple Industries; Covering the Entire Testing Lifecycle):
Thanks to its precise measurement capabilities and user-friendly operation, the HZXD-II Battery Internal Resistance Tester is widely utilized across various industries that rely on batteries for backup power or energy storage. It covers the entire lifecycle-from manufacturing, operation and maintenance (O&M), and testing, to recycling-precisely addressing critical battery testing challenges in diverse scenarios while safeguarding electrical safety and ensuring the stable operation of equipment.
1. Power Systems: DC Power Supply O&M and Preventive Testing (Core Scenario)
Ideal for use in power plants and substations of all voltage levels-specifically for DC power panels and emergency backup power systems-this device facilitates regular inspections and preventive testing of associated high-capacity battery banks. O&M personnel can use the handheld instrument to measure the internal resistance of individual battery cells one by one. By comparing these readings against factory baseline specifications and historical test data, users can promptly detect latent faults-such as sulfation, plate corrosion, or loose connection terminals-and proactively replace degraded cells. This prevents total DC system outages caused by the failure of a single cell, thereby ensuring the reliable operation of the power system's relay protection, circuit breaker operation, and monitoring systems. The device fully complies with relevant power safety testing regulations [Refer to Hertz Power's Adaptation Standards for the Power Industry].
2. Battery Manufacturers: Factory Quality Control and Process Optimization
As a critical tool for quality assurance at the battery manufacturing stage, this device can be used for either full inspections or sampling checks of individual cells, single batteries, and complete battery packs following assembly. By precisely measuring internal resistance and open-circuit voltage, it identifies and screens out defective products characterized by excessive internal resistance, cell defects, poor terminal welding, or substandard assembly processes, thereby preventing inferior batteries from entering the market. Furthermore, by analyzing large-scale testing data, manufacturers can assess the impact of production processes and raw material quality on battery performance, helping enterprises optimize their production workflows and enhance product consistency and reliability [Refer to Industry Production Testing Scenarios].
3. Telecommunications Industry: Battery Maintenance for Base Stations and Equipment Rooms
Tailored for use by telecommunications operators, this device facilitates efficient inspection and maintenance of backup battery systems located in outdoor base stations, core equipment rooms, and data centers. Given the vast number and wide distribution of base stations-many of which are situated in complex locations such as remote mountainous regions or rooftops-the lightweight and portable design of this instrument enables maintenance personnel to rapidly complete on-site inspections. By analyzing internal resistance data, they can assess the degree of battery aging and diagnose performance degradation caused by factors such as ambient temperature fluctuations or charging/discharging anomalies. During large-scale batch inspections of numerous base stations, the device allows for the efficient identification of faulty batteries, facilitating the formulation of precise maintenance and replacement plans. This prevents signal interruptions caused by backup power failures at base stations, thereby ensuring the continuous stability of the communication network [Refer to Industry Communication Scenarios].
4. Emergency Power Supply Scenarios: Backup Power Inspection in Critical Facilities
This solution is applicable to facilities with stringent requirements for power supply continuity-such as shopping malls, hospitals, financial data centers, rail transit systems, and high-rise buildings-where it is used to conduct periodic inspections of battery banks paired with UPS (Uninterruptible Power Supply) and EPS (Emergency Power Supply) systems. In critical areas-such as hospital operating rooms and intensive care units, financial trading systems, and rail transit signaling systems-a failure in the emergency power supply could result in severe risks to human safety and significant economic losses. Through instrument-based testing, operators can assess the performance consistency of individual cells within a battery bank, allowing for the proactive replacement of cells with excessive internal resistance or lagging performance. This ensures that the power supply system delivers full, stable power during emergency situations, thereby fortifying safety defenses [Refer to Industry Emergency Scenarios].
5. New Energy Sector: Energy Storage and Traction Battery Inspection
In photovoltaic and wind power storage stations, the device facilitates the routine inspection of large-capacity battery clusters and stacks, enabling the precise identification of "weak-link batteries" with excessive internal resistance disparities. This prevents poor performance in individual cells from compromising the overall charging/discharging efficiency and service life of the energy storage system. In the field of traction batteries, the device supports after-sales inspections for new energy vehicle batteries, assessments for used vehicle batteries, and maintenance for non-road vehicles such as electric forklifts and sightseeing carts. By utilizing internal resistance data to rapidly assess battery health status and pinpoint fault locations, the solution contributes to the standardized and healthy development of the new energy industry [Refer to Industry New Energy Scenarios].
6. Recycling and Cascaded Utilization: End-of-Life Assessment and Sorting
This solution is tailored for battery recycling enterprises and resource recovery agencies, facilitating the batch inspection and classification of waste batteries. Batteries with internal resistance significantly exceeding standard thresholds-and thus having lost their functional value-are designated as "scrap batteries" and subjected to environmentally safe dismantling and disposal. Conversely, batteries with internal resistance still within acceptable limits and exhibiting adequate performance are screened out for "cascade utilization" in low-power applications (such as backup lighting, small-scale energy storage devices, etc.). This approach facilitates the circular utilization of battery resources, thereby complying with industry requirements regarding environmental protection and comprehensive resource utilization [Refer to Industry Recycling Scenarios].
7. Scientific Research and Education: Experimental Data Support
This system is suitable for instructional experiments and research projects within university disciplines related to electrical engineering, new energy, and electrochemistry. It can be utilized for experiments involving battery material R&D, charge-discharge performance analysis, aging mechanism studies, and more. By quantifying changes in battery performance through precise internal resistance data, the system provides reliable empirical support for educational demonstrations and scientific publications. Furthermore, it serves as specialized testing equipment for third-party metrology and quality assessment agencies, enabling the generation of professional inspection reports for purposes such as battery product quality arbitration, engineering project acceptance, and government procurement verification [Refer to Industry Research & Education Scenarios].
- **Precise Early Warning:** Detects latent battery faults and identifies potential hazards in advance, preventing major losses-such as equipment downtime or power interruptions-caused by battery failure, thereby mitigating O&M risks [Refer to Fault Warning Requirements].
- **Efficient O&M:** Streamlines inspection workflows, reduces inspection time and labor costs, enables rapid batch testing of batteries, and boosts O&M efficiency by over 30%.
- **Data-Driven Support:** Accurately records comprehensive battery lifecycle data, providing a scientific basis for preventive maintenance, battery replacement planning, and process optimization to facilitate refined asset management.
- **Multi-Scenario Adaptability:** Features a lightweight, anti-interference design built to withstand extreme conditions; adaptable to a wide range of complex operating environments-including indoor/outdoor settings and high/low-temperature extremes-to meet the diverse inspection needs of various industries.
- **Quality Assurance:** Manufactured directly by Wuhan Hertz Electric, every unit undergoes rigorous quality inspection. Customers enjoy a 1-year warranty, 24-hour free technical support, software updates, and lifetime maintenance services. We issue 13% VAT special invoices to ensure a worry-free after-sales experience [Refer to Hertz Electric After-Sales Service Standards].
Wuhan Hertz Power Equipment Co., Ltd. is a high-tech enterprise dedicated to the R&D, manufacturing, sales, and service of high-voltage testing equipment. With years of extensive industry experience, our product portfolio encompasses the entire spectrum of power testing and inspection applications. Distinguished by our reliable quality and professional service, we have successfully penetrated not only the domestic market but also numerous international regions-including Southeast Asia, Europe, and North America-earning the recognition and trust of clients worldwide. The HZXD-II Battery Internal Resistance Tester embodies our company's core technological expertise and strictly adheres to industry standards. Every aspect of its design is meticulously tailored to meet the practical demands of on-site operation and maintenance. We are committed to providing various industries with efficient, precise, and safe battery testing solutions, thereby empowering our users to fortify their defenses for electrical safety.
After-Sales Support:
- Warranty Service: The complete unit comes with a 1-year free warranty (excluding damage caused by human error). During the warranty period, free repairs and replacements of consumable parts are provided.
- Technical Support: 24-hour online technical guidance is available. Professional engineers provide one-on-one assistance to address operational inquiries, troubleshoot issues, and offer remote support.
- Value-Added Services: We offer free lifetime software upgrades and technical training. Additionally, customized inspection solutions can be developed to meet specific user requirements.
- After-Sales Response: Upon receiving a service request, we will respond within 2 hours and provide a resolution within 48 hours to ensure the continued, smooth operation of the equipment.
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HZXD-II Battery Internal Resistance Tester CE Certified
Q1:Is your company a sales or a manufacturer?
We are an integrated trade and manufacturing company with our own factory.
Q2:If we need to customize our own brand or if there are special requirements for the built-in software of the machine, can it be customized?
Yes, we accept OEM/ODM/OBM and can customize the built-in software of the product according to the customer's special requirements.
Q3:What is the usual lead time? How long can we receive the order after placing it?
In normal circumstances, products in stock can be received within 5 to 7 days via the fastest international express. Other situations may vary depending on the quantity of products ordered, whether there are special customization requirements, and the delivery time chosen.
Q4:How can we ensure that the product will not be damaged during transportation, considering the large size of the product?
We have professional internal and external packaging to ensure the safety and stability of the products during transportation. For fragile or other special parts, we will include an extra set to ensure that the customer can use the product immediately upon receipt.
Q5:How do you handle after-sales service? What if there is a quality problem with the product or if the customer does not know how to operate it?
For quality issues that are not caused by human error, we provide a one-year warranty from the time the product is delivered, and lifetime technical support. Other after-sales issues will be addressed by our professional technical staff within 24 hours. The product comes with a user manual and an operation video.
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