Electronic Load Tester 20as of 2025
Best Choice1
LiFuJunDongSingle Channel Electronic DC Load Tester Battery Capacity Tester RS485/232 150V 40A US Plug (400W)
Main highlights- Protection function: With over voltage, over current, power supply, over temperature protection function, low voltage remote measurement function;
- Multi-test function: low 10 KHZ dynamic test function; low battery capacity test function; low battery internal resistance test function; low overcurrent protection point/time test function; low fan PWM control, power switch power supply 110VAC/220VAC switching use.
- Load mode: Low CC, CV, CW, CR four basic load modes, low input or reverse connection protection and alarm, with multiple load online synchronous operation
- High precision and high stability: Optimized heat dissipation structure, high power density and digital control mode, higher precision, good stability, RS485, 232 communication interface, MODBUS protocol.
- Automatic test function: with external I / O trigger signal, PASS, FAIL command, powerful interface friendly PC software support.
9.8Exceptional
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Value for Money2
AitoserleaEBD-A20H Battery Capacity Tester, Electronic Load Battery Discharge Tester Power Supply Tester 30V 20A 200W
Main highlights- Voltage test: 0.000-4.500V (low pressure) accuracy to 0.003V, error ±0.5%; 4.50V-30.00V(high presure) accuracy to 0.01V, error ±0.5%
- Note: before purchasing, please carefully read the product functions and parameters to ensure that they can meet your needs!
- LCD display: voltage, current, capacity, time and so on test data
- Current test: 0.10-20.00A, accuracy to 0.01A, error ±0.5%
- Connection: four-wire detection, voltage and current channel separate wiring, to ensure measurement accuracy
- Capacity test: 10Ah, the resolution of 0.001Ah; 10Ah-100Ah, the resolution of 0.01Ah; above 100Ah, the resolution of 0.1Ah
9.7Exceptional
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3
Eyes.sysEyes.sys Electronic Load Tester, USB Load Tester, 180W 200V 20A Battery Capacity Tester Constant Current & Constant Voltage, 4 Modes, Intelligent Discharge Resistance Power Tester
Main highlights- Flexible input wiring interface design to support more DIY connections and extend the functions
- External wired NTC thermometer to realize dual temperature measurement inside and outside
- Can test the charging speed and quality of a variety of charging cable and data cables
- 4 operating modes - constant current / constant voltage / constant power / constant resistance, plus auto generation of data report & 2.4” HD color large screen
- 3 intelligent safety protections to monitor the discharge status in real time
9.5Excellent
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4
MakerHawk14% OffMakerHawk Battery Load Tester - 180W 200V 20A USB Load Tester 4-Wire System Adjustable Constant Current Voltage Discharge Lithium Battery Capacity Tester Electronic Load Tester
Main highlights- Powerful Performance & Intelligent Cooling: This lithium battery tester has a high voltage of 200V, a high current of 20A, and a high power of 180W. Equipped with an intelligent temperature-controlled colored light fan, strong airflow and low noise, it can extend the service life and support continuous operation of long-term discharge or aging tests.
- Multi-Device Compatibility & Safety Features: This battery capacity tester supports discharge aging tests for a wide range of devices, including chargers, cables, power banks, batteries, and power adapters. It has intelligent safety protection such as overload, overcurrent and high temperature protection, real-time monitoring of status makes it safe and reliable.
- High Precision & Upgraded Four-Wire System: Utilizing a four-wire connection, this voltage tester ensures accurate voltage measurements unaffected by wire resistance and its measurement accuracy is comparable to that of large professional instruments. It is also compatible with two-wire connection.
- Four Discharge Modes & App Compatibility: The USB load tester supports constant current, constant power, constant resistance, and constant voltage modes. It is compatible with Android and iOS apps, as well as PC BT and wired connections, providing versatile testing options.
- 2.4" Large Screen Battery Load Tester: Featuring a high-definition color screen, this electronic load tester provides clear and precise readings. It offers comprehensive parameter, settings and operations, including voltage, current, power, capacity, electricity, temperature, discharge resistance, time-limited discharge and stop voltage, etc., to ensure accurate and reliable results.
9.2Excellent
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5
HongzerElectronic Load Tester, 150W 200V 20A USB Load Tester, Adjustable Constant Current Electronic Load Battery Capacity Tester Module
Main highlights- 【USED WIDELY】This multifunction constant current electronic load can measure voltage, current, power, battery capacity, impedance, temperature, energy, time. Test various batteries, DC power supply, and charging data lines.
- 【SPECIFICATION】Voltage measurement range: 0.00V ~ 200V, Resolution accuracy: 0.01V. Current measurement range: 0.00A ~ 20A, Resolution accuracy: 0.01A. Refresh time: > 500mS / times Measurement rate: about 0.5 times / sec.
- 【SAFETY】This Battery Capacity Tester, LCD screen, display information comprehensively and clearly. The CPU fan can effectively dissipate the heat. Configuration of intelligent fan, which can dissipate the heat effectively and quietly. Load maximum power 150W, maximum voltage 200V, maximum current 20A. Over voltage, over current, and over pressure alarm can protect the module from damage effectively.
- 【SAFETY】This Battery Capacity Tester, LCD screen, display information comprehensively and clearly. The CPU fan can effectively dissipate the heat. Configuration of intelligent fan, which can dissipate the heat effectively and quietly. Load maximum power 150W, maximum voltage 200V, maximum current 20A. Over voltage, over current, and over pressure alarm can protect the module from damage effectively.
- 【SAFETY】This Battery Capacity Tester, LCD screen, display information comprehensively and clearly. The CPU fan can effectively dissipate the heat. Configuration of intelligent fan, which can dissipate the heat effectively and quietly. Load maximum power 150W, maximum voltage 200V, maximum current 20A. Over voltage, over current, and over pressure alarm can protect the module from damage effectively.
- 【PRODUCT MANUAL】Please turn down the knob to the end counterclockwise before using, and then turn up slowly. Please pay attention to your safety when the voltage is more than 36V. Several tested power supply can not be connected simultaneously. The current adjustment knob should be regulated slowly.
- 【OVER VOLTAGE OVER CURRENT SET THE ALARM MODE】Show alert interface to remind the user. Overpressure Reminder Setting range: 1 ~ 200V. Low voltage reminder setting range: 0 ~ 190V. Overflow Reminder Set Range: 0.2 ~ 100A.
9.1Excellent
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6
YERTAIYERTAI Electronic Load Tester, ET5406A+ 200W Programmable DC Load Testers 20A 120V Battery Capacity Detector in Charger, Liner Power, Grey
Main highlights- 【Remote Control】Support Communication with computer via USB port, please ask supplier to acquire software and SCPI if need.
- 【PACKAGING and AFTER-SALES】DC Electronic Load x1， output power cord x1, User manual x1; We provide ONE YEAR WARRANTY, please feel free to contact us if any question.
- 【Other functions】Provides overcurrent, overvoltage, overpower, over temperature protection, input polarity reverse prompt；
- 【ET5406A+ Single Channel Programmable Electronic Load Testers】provides 1mV/10mV, 1mA/10mA high resolution and precision with superior performance;Adopting LCD segment code screen with adjustable backlight;
- 【9 Common Testing Mode】CC, CV, CR, CP basic measurement modes,;Battery Test Mode, Dynamic Mode, Tran Test Mode，List Test Mode, Short Circuit Test;
9.0Excellent
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7
VastarryVastarry 180W DC Electronic Load Tester, USB Load Tester, Lithium Battery Capacity Tester, Color Screen Data Monitoring, Constant Current and Constant Voltage, etc. 4 Working Modes
Main highlights- Support testing Android, Type-C cable, Mini and other wires, and display a variety of test data on one screen. By checking and killing, by testing various data cable/charger test/discharge aging/DC power adapter current, voltage, power and other parameters, the operation is simple and the test is convenient and fast.
- If there is any abnormality in the product, whether it is return or exchange, you can contact us first, we will reply you within 6 hours, we will be happy to solve it for you, thank you.
- 4 operating modes: CC-constant current operation; CV-constant voltage operation; CW-constant power operation; CR-constant resistance operation. There are three intelligent safety protections in the discharge detection process, which can monitor the discharge tube status in real time, which is safe and reliable. An external wired NTC thermometer can realize dual temperature measurement inside and outside.
- 2.4-inch high-definition large color screen blue digital curve version of high-power electronic tube digital load meter. Intelligent temperature control color glare fan, high power, long life, durable cooling fan; 180W high power / 200V wide voltage / 20A high current, strong performance.
- 180W load discharge aging test, using intelligent temperature control light effect fan design, built-in large discharge tube, the temperature is maintained at about 50~80 degrees; easily test the voltage, current, capacity and other data of various power sources such as lithium batteries/USB chargers; Powerful, safe and reliable.
8.9Very Good
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8
SeptpentaSeptpenta Electronic Load Tester, 150W 150V 20A Voltage USB Tester, 2.4 Inch Colour Screen, Three Operating Modes, for Power Switch Chargers
Main highlights- 【USER-FRIENDLY DESIGN】Clear 2.4-inch color screen, intuitive controls, and multilingual support for enhanced usability.
- 【SOPHISTICATED OPERATI MODES】The MDL150 offers three operati modes- Constant Current, Constant Power, and Constant - for precise control in testing scenarios.
- 【HIGH-PRECISE MEASUREMENT】Accurate readings with a max load voltage of 150V, load current of 20A, and load power of 150W, ensuring reliable testing results.
- 【EFFICIENT COOLING SYSTEM】Intelligent fan cooling and external temperature measurement capability ensure stable operati even under heavy loads.
- 【COMPREHENSIVE SAFETY FEATURES】Multiple protections including overvoltage, overcurrent, and overtemperature thresholds for safe operation.
8.8Very Good
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9
WalfrontBattery Tester USB Constant Current Electronic Load, 180W 200V 20A Multi-Function Intelligent Adjustable Discharge Power Tester
Main highlights- WIDE USAGE: Constant current electronic load can be taken as electronic constant current load, USB tester,cable detector.
- TEST RANGE: Support QC2.0 compatible QC3.0 quick voltage range test. Power down and data retention.
- DISPLAY SCREEN: Adopting micro power consumption crystal module, LCM black font green backlight, and Chinese English display screen
- DISCHARGE: Built-in intelligent temperature control and large power auto , discharge.
- DATA DISPLAY: One screen multi group data display, such as displaying voltage, current, capacity, electrical voltage, power, timing.
8.6Very Good
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10
LeTkingokLeTkingok EBC-A20 Lithium/Lead Acid Battery Capacity Tester Charge 5A Dischage 20A Electronic Load (EBC-A20)
Main highlights- Wire connection: 4 wires test,voltage test and current test via different cable to ensure acuuracy
- LCD Display:Voltage/Current/Capacity/Time/Power consumption and other data
- Current test:0.1-20A,precision up to 0.01A
- Computer connection: USB to TTL cable
- Capacity test accuracy: 10Ah/0.001Ah 10A-100A/0.01A 100A above/0.1A
8.4Good
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