The Best Dc Load Tester of 2025 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best Dc Load Tester of 2025. Check our ranking below.
2,289 Reviews Scanned
Rank No. #1
Programmable DC Electronic Load 120W, 0~150V, 0~20A, 0.1~999.9 ohm,Support CC(Constant Current), CV(Constant Voltage), CR (Constant Resistance), CP(Constant Power) Mode
- MULTIPLE MODES: Features Constant Current(CC), Constant Voltage(CV), Constant Resistance(CR), Constant Power(CP) and Short-circuit testing modes for versatile electronic load testing
- WIDE TESTING RANGE: Supports voltage range of 0-150V, current range of 0-20A, resistance range of 0.1-999.9 ohm, with maximum power handling of 120W
- MEASUREMENT FUNCTIONS: Includes integral timing capability for measuring watt-hours (WH) and amp-hours (AH), perfect for battery and power supply testing
- DIGITAL DISPLAY: Clear LED screen shows real-time voltage and current readings with precise measurements for accurate testing results
- CONTROL INTERFACE: User-friendly front panel with dedicated mode selection buttons, adjustment knobs, and input terminals for easy operation
Rank No. #2
KKnoon 150W 20A Adjustable Constant Current Electronic Load 2.4inch TFT Color Display 4 Working Modes USB Lithium Battery Capacity Monitor Tester Discharge Meter
- ✔️This product is a direct current CNC electronic load, with a maximum power of 150W and a maximum load current of 20A. Support test the capacity of power battery.
- ✔️2.4inch TFT color screen, with voltage, current, power, electricity, capacity, internal resistance, load, operating mode, OVP, OCP, OPP, stop voltage, time limit discharge display function.
- ✔️It has four working modes design, constant current mode, constant voltage mode, constant power mode and constant resistance mode.
- ✔️Voltage, current and power overrun protections can be set; stop discharge voltage and discharge time can be set.
- ✔️Power supplying temperature can be monitored by an external NTC sensor.
Rank No. #3
MakerHawk Electronic Load Tester - USB Load Tester 150W 200V 20A Resistor Adjustable Constant Current Battery Capacity Tester Module Intelligent Dischar
- Prevent burning warning: when the input voltage battery and large power test, access must be beforeusing two current adjustment knob counterclockwise to the minimum to zero, then the access, accordingto the priority according to current power to slowly adjust current knob, must not instantly transferred infull, so there are excessive instantaneous power load discharge tube burnt huge risk! Please use thespecial attention to this point, thank you!
- Two power supply methods: 1. DC6-12V DC5.0 power supply; 2. DC6-12V Micro USB power supply.The body discharge power cannot exceed 150W, otherwise there is a risk of burnout.
- Voltage measurement range: 0.00V ~ 200V, Current measurement range: 0.00A ~ 20A.
- How to operate: Set the capacity, power, time using the Keystrokes method Reset:1. Reset button Long all data (mAh, Klitschko, 00: 00: 00); 2. Fast button twice capacity reset (mAh); 3. Fast button three power reset (ㅁ);4. Fast button Four time reset (00:00:00); 5. Fast button five settings auto standby, Discharge count down regularly; 6. No load output No load, fast seven key, And current zero zero current, Environmental temperature Accurate calibration.
- 150W power refers to: In accordance with the power calculation formula P = UI (power = voltage x current); 10V input Approximately 18A discharge current 20V input Approximately 9A discharge current 30V input Approximately 6A discharge current.
Rank No. #4
YERTAI Electronic Load Tester, ET5406A+ 200W Programmable DC Load Testers 20A 120V Battery Capacity Detector in Charger, Liner Power, Grey
- 【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;
- 【Remote Control】Support Communication with computer via USB port, please ask supplier to acquire software and SCPI if need.
- 【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;
- 【Other functions】Provides overcurrent, overvoltage, overpower, over temperature protection, input polarity reverse prompt；
- 【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.
Rank No. #5
Rigol DL3021 Programmable DC Electronic Load,DC 150V/40A,200W Total Power,15kHz Highest Frequency,Readback Resolution 1mV/1mA
- DL3021: single channel, DC150 V/40 A, total power up to 200 W
- Dynamic mode: up to 15 kHz
- Adjustable current rising speed: 0.001 A/μs to 5 A/μs
- Min. readback resolution: 1 mV，1 mA
- 4.3-inch TFT LCD, capable of displaying multiple parameters and states simultaneously
Rank No. #6
ET5410A+ DC Electronic Load Tester, 400W Programmable Battery Testers, Single Channel DC Battery Capacity Load Detector, 0-150V, 0-40A, 2.8'' TFT LCD Display
- 【Premium Material】: The ET5410A+ DC Electronic Load Tester features a high-quality PCB electric board, silicone, and aluminum construction, ensuring exceptional durability and rust resistance for optimal performance in single channel electronic load testing.
- 【Multi-functional Capability】: This versatile tester supports multiple basic measurement modes including CC, CV, CR, CP, as well as internal resistance tests for batteries and power supplies, making it an essential tool for comprehensive testing and analysis of various devices.
- 【Thoughtful Design Features】: Equipped with software remote compensation, external trigger input support, and the ability to operate via USB, this single channel electronic load tester ensures data integrity during power outages, while its built-in functions protect against overvoltage, overcurrent, and short circuits.
- 【Efficient Heat Dissipation】: Designed with heat dissipation holes and a built-in fan, the ET5410A+ maintains temperature stability during operation, avoiding overheating and extending the lifespan of your single channel electronic load tester.
- 【User-Friendly Operation】: The sensitive buttons paired with a 2.8-inch TFT LCD display make parameter setting straightforward and accurate, while its lightweight build and convenient handle allow for easy transportation to any worksite, enhancing usability on the go.
Rank No. #7
OWON Programmable DC Electronic Load OEL1530, DC 150V 30A Maximum 300W, USB/RS232, CV CC CR CP 4 Operation Modes, 5kHz Dynamic, Lab Bench Power Tester with 2.8” TFT Color LCD Display
- Seamless Connectivity for Automated Control: Integrate the load into your automated test system via USB, RS232, or RS485 interfaces with full SCPI protocol support. With a wide operating range (0-150V, 0-30A, 300W power, 1.1V@30A min. operation), it provides the flexibility and control needed for both R&D and production line environments
- High-Speed Dynamic Testing with Adjustable Slew Rate: Test device dynamic characteristics by simulating real-world current fluctuations. The load switches rapidly between two preset values (Level A/B) at up to 5kHz. The transition time is precisely configured via an adjustable current rise rate from 0.001A/μs to 2A/μs, enabling accurate characterization of power supplies and components under transient conditions.
- Comprehensive Protection for Device Safety: Safeguard your equipment with multi-layered protection features, including Over-Current (OCP), Over-Voltage (OVP), Over-Power (OPP), Over-Temperature (OTP), and Reverse Polarity Protection (RPP). These built-in safety mechanisms ensure reliable operation and prevent damage to both the load and the device under test
- Integrated Battery Charge/Discharge Testing: Evaluate battery performance with a complete charge/discharge test system. A power supply charges the DUT, while the electronic load controls discharge—all managed by PC software. Set parameters, cutoff conditions, and cycle counts to automatically output charge/discharge curves and capacity curves for in-depth performance analysis
- User-Friendly Design with High-Resolution Display: Featuring a compact and portable form factor, this programmable electronic load is built for the bench or the field. The 2.8-inch TFT color LCD provides clear readbacks with high resolution (1mV/0.1mA), allowing for precise monitoring and adjustments during operation
Rank No. #8
2026 ET5410A+ Programmable DC Electronic Load Tester, 400W 0-150V 0-40A, Battery Capacity Load Detector & Constant Current/Voltage, USB Testers for Power Supply, Switch Chargers
- High Precision and Versatile Testing: The device offers high-resolution measurements (1mV/10mV, 1mA/10mA) with superior performance, suitable for a wide range of applications including charger, switching power supply, linear power supply, and battery testing
- Comprehensive Test Functions: Equipped with 12 common modes and complete test functions, it provides professional battery testing, LED testing, dynamic test mode, scanning test mode, list mode, and short circuit test, ensuring thorough and accurate testing capabilities
- User-Friendly Design: Featuring a 2.8-inch TFT LCD screen with rich display contents and an intuitive interface display system, the operation process is simple and convenient, making it easy to get started. Additionally, the key lock function prevents misoperation
- Advanced Protection and Control: The device includes over-voltage, over-current, over-power, and over-temperature protection functions, with flexible parameter settings for effective load protection. It also features intelligent fan speed control to reduce fan noise during operation and input polarity reverse prompt for added safety
- Multiple Interface Options and Safety Features: With standard USB interface, the device offers flexibility in connectivity. It provides multiple safety protections including overcurrent, overvoltage, overpower, and over temperature protection, ensuring the safety of both the device under test and the user
Rank No. #9
MakerHawk Battery Load Tester - 180W 200V 20A USB Load Tester 4-Wire System Adjustable Constant Current Voltage Discharge Lithium Battery Capacity Tester Electronic Load Tester
- 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.
- 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.
- 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.
- 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.
- 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.
Rank No. #10
Electronic Load Tester 400W 150V 40A Programmable DC Battery Capacity Load Detector Constant Current Voltage USB Testers for Power Supply Switch Charger
Note: Providing complete after-service by factory after your purchase. Welcome for any question through Amazon Message!
{Operation}: Easy to operate and handle with 2.8 inches TFT screen(0-150 V, 0-40A, 0-400W)
{6 basic measurement modes}: Constant Current, Constant Voltage, Constant Resistance, Constant Power, CC+CV, CR+CR
{Function modes}: Provide Battery test, LED test, Dynamic test, Scanning test, List test, Battery/ Power supply internal resistance testing
{Communication}: Provide USB Port and device protection functions
Last update on 2026-05-25 / Affiliate links / Images from Amazon Product Advertising API
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