36V–72V to 12V DC-DC Step Down Converter – 96% Efficiency, Minimal Energy Loss
Whether you are running a 48V e-scooter, a 60V electric bike, or an off-grid solar system, you need a reliable way to power your 12V accessories without wasting energy on inefficient linear regulators. This DC-DC step down converter does exactly that: it transforms any input voltage between 36V and 72V into a stable 12V output with an impressive ~96% efficiency. In practical terms, for every 100W drawn from your battery, 96W is delivered to your devices.
Note: The output voltage is fixed at 12V and is not adjustable. Please ensure the total current draw of your connected devices does not exceed 10A (120W total).
Why choose this model? (Key Advantages):
- Universal Compatibility (36V–72V) — Perfectly suited for the most common battery configurations found in e-scooters, e-bikes, and scooters without requiring any modifications.
- ~96% Efficiency — Unlike traditional linear regulators that waste 30–40% of energy as heat, this unit stays cool and energy-efficient.
- Triple Integrated Protection — Built-in thermal, overvoltage, and short-circuit protection safeguards both the module and your connected devices, even in the event of wiring errors.
- 120W Continuous Power — Plenty of overhead to power a CCTV camera, GPS tracker, LED lighting, a 4G router, and a cooling fan all at once.
- Compact Design (88×48×30 mm) — Easily fits into tight technical compartments, under the seat, or inside battery enclosures without the need for complex mounting adapters.
- Pre-wired Colour-Coded Cables — Red, black, and yellow wires allow for a quick 5-minute installation without the need for a multimeter or risk of polarity errors.
Performance and Technical Details
This module utilizes a high-frequency switching buck topology, meaning it actively converts energy rather than dissipating it as waste heat. The result is stable operation even under heavy loads, with no external heatsink required under normal conditions. The short-circuit protection triggers instantly if a wire comes loose or touches the chassis, while the thermal protection automatically shuts down the module if the ambient temperature becomes too high, with automatic recovery once cooled.
| Parameter | Value / Detail |
|---|---|
| Input Voltage | DC 36V – 72V (Compatible with 36V, 48V, 60V, 72V) |
| Output Voltage | DC 12V (Fixed, non-adjustable) |
| Max Output Current | 10A continuous |
| Max Power | 120W |
| Conversion Efficiency | ~96% |
| Integrated Protections | Over-temperature, Over-voltage, Short-circuit |
| Converter Type | Step Down (Buck), high-frequency switching |
| Dimensions | 88 × 48 × 30 mm |
| Wire Colours | Red (+IN), Black (GND), Yellow (+OUT 12V) |
| IP Rating | Not rated — installation in a protected enclosure is recommended |
| Typical Applications | E-scooters, e-bikes, scooters, off-grid solar, LED, GPS, CCTV, routers |
Connection and Usage Instructions
- Disconnect the battery before performing any electrical work.
- Connect the red wire (+IN) to the positive terminal of the battery (36V–72V).
- Connect the black wire (GND) to the negative terminal of the battery and the device ground.
- Connect the yellow wire (+OUT 12V) to the positive terminal of your 12V device (LED, GPS, camera, etc.).
- Verify that the total current draw of all connected devices does not exceed 10A. For optimal longevity, we recommend staying within 80–90% of the rated capacity (max 96–108W for continuous use).
- Reconnect the battery and test; the 12V output will activate immediately.
- Mount the module in a ventilated area, away from direct moisture and excessive vibration.
Package Contents
- 1× DC-DC Step Down Converter Module 36V–72V to 12V 10A 120W
- Pre-installed connection cables (Red +IN, Black GND, Yellow +OUT 12V)
Frequently Asked Questions
Can I use this on a 48V e-scooter?
Yes, absolutely. The 48V voltage falls perfectly within the 36V–72V range. Simply connect the wires as instructed to power your GPS, LED lights, or alarm system directly from the scooter’s battery.
Is the 12V output voltage adjustable?
No. The output is fixed at 12V and does not feature a potentiometer. If you require a different output voltage, please look for an adjustable step-down converter with a display or dial.
What happens if I exceed 10A output?
The integrated protection will automatically shut down the module to prevent damage. It will reset itself once the load is reduced or the unit has cooled down. However, repeated overloading will shorten the lifespan of the component, so please ensure your devices are correctly rated.
Does this work in off-grid solar systems?
Yes, provided the DC voltage from your storage battery is between 36V and 72V. You can power LED lighting, routers, surveillance cameras, or other 12V equipment directly from your solar battery bank.
Is it water or dust resistant?
It does not have an IP rating. If you are using this on electric vehicles exposed to rain or dust, you must mount it inside a sealed enclosure or a protected compartment.
Photo Gallery
Reviews
There are no reviews yet.