ET5420A+ Dual Channel DC Electronic Load Tester 400W Programmable Battery Tester 0-150V 20A×2 High-Precision Power Supply Analyzer with USB & RS485 for Battery/LED/Charger Testing

The ET5420A+ Dual Channel Programmable DC Electronic Load is a versatile testing instrument designed for laboratories, production lines, and R\&D. With two 200W channels (400W total), it supports independent or parallel testing, making it suitable for power supply manufacturers, battery developers, and electronic engineers.Key Features: Multi-Functional Test Modes: Constant Current (CC), Constant Voltage (CV), Constant Resistance (CR), Constant Power (CP), with additional dynamic test, scanning test, and list test functions.Battery Testing: Provides CC/CR discharge modes for capacity analysis, cycle testing, and internal resistance measurement, making it ideal for lithium-ion and other rechargeable batteries.LED Testing: Precisely controls current and voltage for LED testing, ensuring accurate performance evaluation.High Accuracy: Resolution up to 1mV/1mA, with ±0.05% precision in CV/CC modes.User-Friendly Operation: 2.8-inch TFT display with Chinese/English interface, intuitive navigation, and key-lock to prevent accidental misuse.Safety & Protection: Built-in OVP, OCP, OPP, OTP, input polarity prompt, and smart fan cooling to reduce noise and extend service life.Connectivity: Equipped with USB and RS485 ports for easy data communication and remote control.Specifications: Load Input: 0–150V, 0–20A×2, 0–200W×2 (400W max) CV Range: 0.1–150.00V CC Range: 0–20.00A CR Range: 0.05Ω–4.5kΩ CP Range: 0–200W Dimensions: 90×190×300mm | Weight: 3.8kgPackage Includes: 1× ET5420A+ DC Electronic Load 1× US Power Plug 2× Fuses 1× English User Manual 1× Certificate 1× Test Clamp

• Dual Channel Programmable Load：ET5420A+ electronic load supports two independent 200W/20A channels (total 400W), allowing simultaneous or parallel testing. Wide input range: 0–150V, 0–40A.
• Multiple Test Modes：Supports CC, CV, CR, CP, CC+CV, CR+CR modes for flexible testing of power supplies, chargers, batteries, and electronic components.
• Comprehensive Battery & LED Testin：Built-in battery discharge, capacity, and internal resistance tests, plus dedicated LED test functions for brightness, consistency, and durability evaluation.
• High-Precision & User-Friendly：Features 1mV/1mA resolution, ±0.05% accuracy, 2.8" TFT color display (Chinese/English), intuitive operation, key-lock function, and USB + RS485 communication interface.
• Advanced Safety & Cooling Design：Equipped with OVP, OCP, OPP, OTP protection, input polarity warning, and intelligent fan control to reduce noise and enhance device lifespan.