1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester

1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester

$719.99
$719.99
Please hurry! Only 10 left in stock
Subtotal: $719.99
10 customers are viewing this product

Storewide Discounts

Spend $100+ for 10% OFF | $300+ for 15% OFF | $400+ for 20% OFF. Discounts will be automatically deducted at checkout.

Free Shipping

We offer free express shipping on all orders.

You'll receive your order an estimated 7-15 working days after shipment.

Free Returns

30-Day return and refund guarantee refer to our refund policy.
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester

1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester

$719.99
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester
1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester

1200W ET5303 Programmable DC Electronic Load Tester Power Accessories CC, CV, CR, CP, CC + CV,CR + CV modes Battery Insulation Resistance Tester

$719.99
Product Details

ET5303 Programmable DC Electronic Load: 1200W High-Current for Heavy-Duty Power Testing

Fed up with loads that fail at high-current, high-power tests? The ET5303 delivers 1200W power, 0-150V voltage, 0-120A current + 1mV/1mA resolution—perfect for industrial power supplies, large batteries, high-current chargers, and heavy-duty electronics in R&D, production, and labs.

User-Friendly & Durable Design

  • Clear Display: 3.5-inch TFT LCD (Chinese/English) shows voltage, current, power, and test mode at a glance—no more squinting at complex data.
  • Easy Operation: Intuitive interface + one-key mode entry/exit; key lock prevents accidental misoperation during critical high-current tests.
  • Sturdy & Quiet: Reinforced housing handles heavy-duty use; smart fan adjusts speed to cut low-load noise; built-in buzzer alarms for real-time faults.

Key Specifications

Parameter
Detail
Model
ET5303
Channels
Single Channel
Rated Input
1200W Power, 0-150V Voltage, 0-120A Current
Testing Modes
6 Basic (CC/CV/CR/CP/CC+CV/CR+CV); 4 Professional (Battery/LED/Dynamic/Scan)
Resolution
Voltage:1mV(0.1-19.999V)/10mV(0.1-150V); Current:1mA(0-30A)/10mA(0-120A); Power:10mW
Accuracy
Voltage:±(0.05%+0.02%FS); Current:±(0.05%+0.05%FS); Power/Resistance:±(0.1%+0.5%FS)
Battery Test
CC/CR discharge; Max capacity:9999Ah
Protection Functions
Over-Voltage(>21V/150V), Over-Current(>12.1A/121A), Over-Power(1260W), Over-Temp(85℃)
Connectivity
USB+RS-232 (remote control + free software); External trigger

Core Advantages

  • 120A High-Current Capacity: Handles heavy-duty devices (e.g., industrial batteries, high-power chargers) that low-current loads can’t test.
  • High Precision: 1mV/1mA resolution captures tiny signal changes—ensures reliable data for R&D and production quality control.
  • Multi-Mode Versatility: Replaces single-function tools—covers basic constant tests to advanced battery/dynamic/scan tests.
  • Safe & Convenient: Multi-layer protection safeguards the load and tested devices; power-off data retention + remote control boost testing efficiency.

Applicable Scenarios

  1. Industrial Production: Test high-current power supplies, heavy-duty chargers via PASS/FAIL for fast qualification.
  1. Battery Industry: Test large industrial batteries (e.g., backup power, EV auxiliary batteries) for capacity and discharge performance.
  1. Heavy-Duty R&D: Analyze high-current prototype stability (e.g., industrial control power) with dynamic/scan modes.
  1. Labs/Education: Teach heavy-duty load testing principles—intuitive for students, precise for researchers.

Why Choose ET5303?

  • High-Current Expert: 120A range fills the gap for heavy-duty testing needs, no need for multiple devices.
  • Trusted Precision: Low error rates meet industrial standards—avoids costly mistakes from inaccurate data.
  • Cost-Effective: 10+ functions in one device—saves workspace and budget vs. single-function tools.
Ready to tackle high-current, high-power testing? Click “Add to Cart”—the ET5303’s strength, precision, and durability make it a must-have for industrial teams and engineers!
Warranty

Warranty

30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from kuaiquinstrument.com), lifetime technique support by KUAIQU.

Please feel free to reach us with any concerns:

Email: kuaiquinstrument@163.com

We strive to reply to you within 24 hours.

Shenzhen Kuaiqu Electronic Co., Ltd. was founded in 2014 and is located in Shenzhen City, Guangdong Province. It is a scientific and technological enterprise integrating,production and sales. Specializing in the production of DC stabilized power supply, variable frequency power supply, switching power supply, program-controlled power supply and other 100 kinds of measuring teaching instruments and industrial special equipment.

We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.

Price Guarantee

At KUAIQU, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from kuaiquinstrument.com. This policy aims to give you confidence and peace of mind when shopping with us.

What is the 30-Day Price Guarantee?

Our 30-day price guarantee means that if you purchase a product from kuaiquinstrument.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)

How Does the Price Guarantee Apply?

  • Eligibility: The price guarantee applies only to purchases made on kuaiquinstrument.com. Products purchased from other retailers or third-party sellers are not eligible.
  • Timeframe: The price drop must occur within 30 days of your original purchase date.
  • Product Match: The price guarantee applies to the same product (identical model, specifications, and condition).

How to Apply for a Price Difference Refund

If you notice that the price of a product you purchased from kuaiquinstrument.com has dropped within 30 days, follow these steps to apply for a refund of the price difference:

  • Documentation: Prepare your order number and proof of the price drop (such as a screenshot and link to the product page showing the reduced price).
  • Contact Us: Reach out to our customer support team at kuaiquinstrument@163.com. Include your order number, proof of the price drop, and a brief explanation of your request.
  • Verification: Our team will verify the price drop and your purchase details.
  • Refund Process: Once verified, we will process the refund for the price difference to your original method of payment. It typically takes 1-3 business days for you to receive the refund.

At KUAIQU, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with KUAIQU, knowing that you are always getting the best deal available.

Thank you for choosing KUAIQU. If you have any questions or need further assistance, please do not hesitate to contact our customer support team at kuaiquinstrument@163.com.

You May Also Like

Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99
Example product title
$719.99
$719.99

Recently Viewed Products