{"product_id":"rd-hd35-trigger-qc2-0-qc3-0-electronic-usb-load-resistor-discharge-battery-test-adjustable-current-voltage-5a-35w","title":"RD HD35 Trigger QC2.0 QC3.0 Electronic USB Load Resistor Discharge Battery Test Adjustable Current Voltage 5A 35W","description":"\u003cmeta name=\"description\" content=\"Buy RD HD35 Trigger QC2.0 QC3.0 Electronic USB Load Resistor Discharge Battery Test Adjustable Current Voltage 5A 35W online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003eRD HD35 Trigger QC2.0 QC3.0 Electronic USB Load Resistor Discharge Battery Test Adjustable Current Voltage 5A 35W\u003c\/h1\u003e\n\n\u003cp\u003eThe RD HD35 is a precision electronic load tester designed for comprehensive USB power delivery testing and battery discharge analysis. Electronics engineers, power supply manufacturers, and battery technicians use this device to validate Quick Charge 2.0 and Quick Charge 3.0 protocol compliance, measure actual charging capacity, and perform stress testing on power banks and chargers. This tool solves the critical problem of accurately verifying power delivery specifications without expensive laboratory equipment, enabling rapid quality assurance and troubleshooting in development and production environments.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe RD HD35 operates as an intelligent electronic load that simulates real-world power consumption patterns while measuring voltage, current, and power characteristics across USB interfaces. Unlike passive resistive loads, this device features active feedback control that maintains stable current draw regardless of input voltage fluctuations, enabling accurate protocol triggering for QC2.0 and QC3.0 negotiation. The trigger mechanism automatically activates specific voltage handshake sequences required by Quick Charge protocols, allowing technicians to verify charger output switching and validate power delivery circuits without manual configuration.\u003c\/p\u003e\n\n\u003cp\u003eThe 35W maximum power dissipation capacity with adjustable current control from milliamps to 5A provides flexibility for testing everything from low-power USB devices to high-current fast chargers. The device incorporates precision measurement circuitry that displays real-time voltage and current readings with high accuracy, essential for identifying power supply anomalies, battery health assessment, and charger efficiency evaluation. Built-in protection mechanisms prevent damage during testing of faulty devices, making it an indispensable tool for quality control, research and development, and field service operations.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eElectronic Load Tester with QC Protocol Trigger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eRD (Ruideng)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eHD35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Rating\u003c\/td\u003e\n\u003ctd\u003e35W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Current\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Range\u003c\/td\u003e\n\u003ctd\u003e4.5V to 30V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Adjustment\u003c\/td\u003e\n\u003ctd\u003eAdjustable from 0.1A to 5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtocol Support\u003c\/td\u003e\n\u003ctd\u003eQC2.0, QC3.0, Trigger Mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eDigital LCD with Voltage and Current Readout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Accuracy\u003c\/td\u003e\n\u003ctd\u003e±2% for voltage and current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eUSB Type-A Input Connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Features\u003c\/td\u003e\n\u003ctd\u003eOvervoltage, Overcurrent, Overtemperature Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQC2.0 and QC3.0 Protocol Trigger: Integrated trigger circuitry automatically initiates voltage negotiation sequences, eliminating manual handshake configuration and enabling instant protocol validation\u003c\/li\u003e\n\u003cli\u003eAdjustable Current Control: Precision current adjustment from 0.1A to 5A allows testing of diverse power delivery scenarios from low-power USB devices to high-current fast charging systems\u003c\/li\u003e\n\u003cli\u003eReal-Time Digital Display: Simultaneous voltage and current measurement with high-resolution LCD readout provides instantaneous power delivery verification and performance monitoring\u003c\/li\u003e\n\u003cli\u003eWide Voltage Range Support: 4.5V to 30V DC compatibility enables testing of standard USB 5V supplies, Quick Charge 9V and 12V modes, and proprietary high-voltage charging protocols\u003c\/li\u003e\n\u003cli\u003eThermal Management: Integrated heat dissipation design handles continuous 35W power load without thermal throttling, ensuring reliable long-duration battery discharge testing\u003c\/li\u003e\n\u003cli\u003eMulti-Layer Protection: Overvoltage, overcurrent, and overtemperature safeguards prevent damage when testing faulty or non-compliant power supplies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuick Charge Charger Validation: Verify QC2.0 and QC3.0 protocol compliance in USB chargers and power adapters by triggering automatic voltage negotiation and measuring output stability across all supported voltage levels\u003c\/li\u003e\n\u003cli\u003ePower Bank Testing and Certification: Discharge battery packs under controlled current loads while monitoring voltage decay characteristics, enabling capacity verification and cycle life assessment for quality assurance\u003c\/li\u003e\n\u003cli\u003eUSB Power Delivery Analysis: Test proprietary charging protocols and non-standard power delivery implementations by adjusting current loads and observing voltage regulation performance\u003c\/li\u003e\n\u003cli\u003eBattery Health Assessment: Perform controlled discharge testing on lithium-ion and lithium-polymer batteries to identify internal resistance degradation, capacity loss, and cell balancing issues in multi-cell packs\u003c\/li\u003e\n\u003cli\u003eCharger Efficiency Measurement: Calculate real-world power conversion efficiency by measuring input voltage and current simultaneously during load testing, identifying thermal losses and component degradation\u003c\/li\u003e\n\u003cli\u003eField Service Troubleshooting: Rapidly diagnose faulty chargers, power supplies, and battery management systems by comparing measured output characteristics against known specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eBegin by connecting the RD HD35 to the USB power source under test using the USB Type-A connector. Power on the device and observe the digital display showing current voltage and zero current initially. For QC protocol testing, activate the trigger mode using the dedicated button or switch, which automatically initiates the voltage negotiation handshake. The device will display the negotiated voltage level once the charger responds to the protocol sequence, typically switching from 5V to 9V or 12V depending on charger capability.\u003c\/p\u003e\n\n\u003cp\u003eTo perform current adjustment and load testing, use the rotary potentiometer or adjustment controls to gradually increase the current draw from 0.1A upward. Monitor both voltage and current readings on the display to ensure stable operation within the device's 35W maximum power rating. For battery discharge testing, connect the battery pack to the USB input and set the desired discharge current based on your testing requirements, such as C\/10 discharge rate for capacity measurement. Allow the device to operate continuously while observing voltage decay patterns, noting the time required to reach cutoff voltage for capacity calculation. Always ensure adequate ventilation around the device during extended high-power testing to prevent thermal shutdown.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between QC2.0 and QC3.0 protocol triggering?\u003c\/summary\u003e\n\u003cp\u003eQC2.0 uses discrete voltage levels at 5V, 9V, and 12V with fixed current ratings, while QC3.0 introduces continuous voltage adjustment from 3.6V to 20V in 200mV increments, enabling optimized power delivery for diverse device requirements. The RD HD35 trigger mechanism automatically initiates the correct handshake sequence for each protocol, allowing the charger to negotiate its maximum supported voltage level. QC3.0 chargers connected to the HD35 will typically output higher voltages than QC2.0 devices, resulting in greater power delivery capability at lower currents.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use the RD HD35 to test non-Quick Charge chargers?\u003c\/summary\u003e\n\u003cp\u003eYes, the RD HD35 functions as a standard electronic load for any USB power supply between 4.5V and 30V DC, regardless of protocol support. Simply disable the trigger mode or leave it inactive, and the device will operate as a passive load tester measuring voltage and current from standard USB chargers, USB-C power delivery supplies, and custom power adapters. This versatility makes it suitable for testing legacy chargers, proprietary charging systems, and experimental power supplies without protocol-specific requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum continuous power dissipation capability?\u003c\/summary\u003e\n\u003cp\u003eThe RD HD35 is rated for 35W maximum power dissipation, calculated as the product of voltage and current at any given moment. For example, at 5V input, maximum current is limited to 7A (5V × 7A = 35W), while at 12V input, maximum current is 2.9A (12V × 2.9A = 35W). The device incorporates thermal protection that reduces current automatically if internal temperature exceeds safe limits during extended testing. For continuous operation beyond 20 minutes at maximum power, ensure proper ventilation and consider using a heat sink or fan to maintain optimal operating temperature.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow accurate are the voltage and current measurements?\u003c\/summary\u003e\n\u003cp\u003eThe RD HD35 provides measurement accuracy of approximately ±2% for both voltage and current readings, suitable for most quality assurance and troubleshooting applications. This level of accuracy is sufficient for verifying charger compliance with Quick Charge specifications, calculating power efficiency, and identifying faulty power supplies. For precision laboratory measurements requiring higher accuracy, consider using dedicated multimeters or power analyzers in conjunction with the HD35 for cross-verification.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the RD HD35 suitable for testing USB-C Power Delivery chargers?\u003c\/summary\u003e\n\u003cp\u003eThe RD HD35 features a standard USB Type-A connector, making it compatible with traditional USB-A to USB-C cables for testing USB-C chargers. However, for full USB Power Delivery protocol support with negotiation of higher voltage and current levels, you may need additional USB-C specific adapters or consider the RD HD35 as a basic load tester for USB-C supplies. The device will accurately measure output voltage and current from USB-C chargers when properly connected, making it useful for efficiency testing and load verification even without full protocol handshaking.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Tech Depot\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eBuy RD HD35 Trigger QC2.0 QC3.0 Electronic USB Load Resistor Discharge Battery Test Adjustable Current Voltage 5A 35W Online in India\u003c\/h2\u003e\n\u003cp\u003ePurchase the \u003cstrong\u003eRD HD35 Trigger QC2.0 QC3.0 Electronic USB Load Resistor Discharge Battery Test Adjustable Current Voltage 5A 35W\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat.\u003c\/p\u003e\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48742574391553,"sku":"TTD-7164","price":2002.02,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/259689a086cd9954ef751b61ccd61b97.jpg?v=1778030854","url":"https:\/\/techdepot.in\/products\/rd-hd35-trigger-qc2-0-qc3-0-electronic-usb-load-resistor-discharge-battery-test-adjustable-current-voltage-5a-35w","provider":"Tech Depot India","version":"1.0","type":"link"}