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SiAECOSYS 60V–72V to 12V 10A DC-DC Step-Down Voltage Converter (Optional 5V 1A USB Output)
without 5V
$32.00
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SiAECOSYS 60V–72V to 12V 10A DC-DC Step-Down Voltage Converter (Optional 5V 1A USB Output)
$32.00
Safely power your vehicle lighting, horn, and electronic accessories directly from your high-voltage traction battery with the genuine SiAECOSYS 60V/72V to 12V 10A DC-DC Step-Down Voltage Converter. Built specifically for high-performance electric motorcycles, e-scooters, e-bikes, and light electric vehicles (LEVs), this heavy-duty buck converter steps down raw pack voltage into a clean, regulated 12V 10A (120W) output without draining or unbalancing individual battery cells.
Constructed in a heavy-duty extruded aluminum alloy shell for superior passive heat dissipation, the converter features advanced solid-state circuitry with built-in protection against short circuits, over-current, over-voltage, and thermal overloads. Available in three configurations, including options with an integrated 5V 1A output line and a dedicated USB phone charging cable.
Key Features & Electrical Advantages
- Stable 12V 10A Power Delivery: Provides up to 120W of continuous 12V power, effortlessly driving high-power LED projector headlights, turn indicators, horns, brake lights, audio systems, and GPS trackers.
- Wide High-Voltage Compatibility: Engineered natively for 60V and 72V battery packs (handles operational inputs across 48V–84V DC), preventing voltage sags or spikes from damaging sensitive 12V accessories.
- Optional 5V 1A Output & USB Charging: Selected packages include a regulated 5V 1A secondary output wire and a weatherproof USB port to keep smartphones, cameras, and navigation units charged while riding.
- Heavy-Duty Extruded Aluminum Housing: Acts as an efficient passive heat sink, maintaining cool operating temperatures even under sustained high-amperage loads.
- Comprehensive Circuit Protection: Multi-layer defense includes output short-circuit protection, reverse-polarity protection, over-current limiting, and thermal shutdown.
- Compact & Secure Mounting: Slotted mounting tabs allow simple, vibration-resistant installation inside scooter decks, motorcycle battery trays, or chassis compartments.
Available Package Configurations
- Combo 1 (without 5V): 1× SiAECOSYS 60V/72V to 12V 10A DC-DC Step-Down Converter with standard 3-wire harness (Input +, Output +, Common Ground).
- Combo 2 (With 5V): 1× SiAECOSYS 60V/72V to 12V 10A DC-DC Step-Down Converter equipped with an auxiliary 5V 1A output wire.
- Combo 3 (With 5V and USB): 1× SiAECOSYS 60V/72V to 12V 10A DC-DC Step-Down Converter + 1× Auxiliary 5V 1A Output Line + 1× USB Charging Cable + 1× DJ7041Y-6.3-21 automotive plug-in connector harness.
Technical Specifications Matrix
| Parameter | Specification |
|---|---|
| Brand / Manufacturer | SiAECOSYS Genuine |
| Product Type | Step-Down (Buck) DC-DC Converter |
| Nominal Input Voltage | 60V / 72V DC (Wide input range: 48V–84V DC) |
| Primary Output Voltage | 12V DC ±2% |
| Primary Output Current / Power | 10A Continuous (120W Max Output) |
| Auxiliary Output (Combos 2 & 3) | 5V DC, 1A (Integrated wire lead / USB port) |
| Housing Material | Heavy-Duty Cast Aluminum Alloy Heatsink |
| Harness Lead Length | 75mm ± 5mm |
| Lead Wire Gauge | 0.3 mm² High-Flex Copper Wiring |
| Connector Model (Combo 3) | DJ7041Y-6.3-21 Multi-Pin Automotive Plug |
Wiring & Connection Pinout Schematic
The converter is engineered for straightforward in-line integration with your vehicle's main power switch (electric door lock / ignition switch) and existing 12V accessory harness:
- High-Voltage Input (+): Connects to battery positive via the electric lock / ignition line.
- Common Ground (-): Connects to the main battery negative ground return.
- 12V Regulated Output (+): Supplies positive 12V DC power to your light switch, horn relay, and accessory bus.
- 5V Auxiliary Lead / USB (+): Supplies 5V DC power for mobile devices and USB charging accessories.
USB Cable & Automotive Connector Hardware
Frequently Asked Questions (FAQ)
Q: Why should I use a DC-DC converter instead of tapping a single 12V section of my battery pack?
A: Tapping into part of a 60V or 72V lithium pack causes severe cell imbalance, uneven discharge rates, and will trigger early BMS low-voltage cutoffs. A dedicated DC-DC converter draws current evenly from the entire pack, ensuring full battery cycle life and maximum pack health.
Q: Can I run multiple 12V lights and a horn at the same time on this 10A converter?
A: Yes. With 10A continuous output (120 Watts), this unit has abundant capacity to run twin LED headlights (typically 15W–30W each), taillights/turn signals (5W–10W), and an electric motorcycle horn (30W intermittent) simultaneously without voltage sag.
Q: What is the benefit of choosing Combo 3?
A: Combo 3 provides both the 5V auxiliary output line and a dedicated USB charging port cable, as well as the DJ7041Y-6.3-21 automotive mating plug for clean, modular, and weatherproof installation on handlebars or fairings.
Q: Is this converter waterproof?
A: The heavy-duty aluminum shell and silicone potted interior protect against splash, spray, and road grime. For optimal longevity, it is recommended to mount the unit inside the chassis, frame channel, or headlight cowl away from direct wheel spray.
International Shipping & Logistics Notice
Free Worldwide Tracked Shipping: Every converter is inspected, padded, and dispatched with an international tracking number so you can follow transit progress directly to your door.
Customs & Import Duties: Standard international trade terms apply. Depending on destination customs laws, any applicable local taxes or duties are the responsibility of the purchaser.
Accurate Delivery Address: Please ensure your street address, zip code, and contact mobile number are fully up-to-date at checkout to ensure seamless courier dispatch.
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