Dual USB Fast Charging Module 9-30V | Car Truck RV USB-A & USB-C
Dual USB Fast Charging Module 9-30V | Car Truck RV USB-A & USB-C
Dual-Port Fast Charging Module for Vehicles — 9V to 30V Wide Input
Keep two devices powered up simultaneously with this compact, high-performance step-down charging module. Designed for cars, trucks, RVs, camper vans, engineering vehicles, and DIY electronics builds, this module delivers reliable dual-port fast charging across a wide 9V–30V input range. Made in Mainland China.
Key Features
- Multi-Protocol Fast Charging: Compatible with QC2.0, QC3.0, QC3.0+, BC1.2, Apple 2.4A, FCP, SCP, SHSCP, AFC, VOOC, DASH, WARP, SUPERVOOC, and more — works with virtually every major smartphone brand.
- Dual Independent Ports: USB-A delivers up to 30W; USB-C delivers up to 20W. Both ports operate independently so two devices charge at full speed simultaneously.
- Wide Voltage Input (9V–30V): Step-down design accommodates standard 12V car systems, 24V truck/RV systems, and industrial vehicle power supplies without modification.
- Built-In Reverse Connection Protection: Safeguards both the module and connected devices against accidental reverse polarity wiring, extending service life and ensuring safe installation.
- Extreme Temperature Stability: Rated for –40°C to 125°C operating range — dependable performance in harsh climates, whether scorching deserts or freezing winters.
- Low No-Load Draw: Only 3–5mA no-load current, minimizing battery drain when devices are not actively charging.
Specifications
| Input Interface | DC 5.5×2.1mm barrel connector |
| Output Interface | USB-A (30W) + USB-C / Type-C (20W) |
| Input Voltage | DC 9V – 30V (step-down) |
| Recommended Input Current | 5A |
| No-Load Current | 3–5mA |
| Operating Temperature | –40°C to 125°C |
| EU LVD Classification | Low voltage: Below 50Vac or 75Vdc |
Supported Charging Protocols
USB-A Port: BC1.2, Apple 2.4A, QC2.0, QC3.0, QC3.0+, FCP, SCP, SHSCP, low-voltage direct charging.
USB-C Port: QC3.0, QC3+, UFCS, SUPERVOOC, SUPERDASH, WARP, FCP, SCP, AFC, Apple 2.4A, Mi Turbo Charge 27W (cable-dependent), OPPO VOOC/DASH/WARP (1st-gen, cable-dependent), VIVO iQOO series, and more.
Note: Fast charging availability varies by device model. A small number of devices may only support standard charging speeds — this is normal.
Ideal Applications
- 12V/24V passenger cars, SUVs, pickup trucks, and RVs
- Commercial and industrial vehicles (engineering trucks, special-purpose vehicles)
- DIY electronics projects requiring a reliable, regulated dual-USB charging output
Package Contents
- 1× Step-Down Dual USB Fast Charging Module
Important: Input power must exceed output power. Ensure your power source provides sufficient voltage and current (P = V × I). Using a minimum 5A-rated input supply is recommended for full dual-port performance.
For more information on vehicle electrical safety standards, visit the U.S. Consumer Product Safety Commission (CPSC).
Frequently Asked Questions
Q: Can this dual USB fast charging module work with a 24V truck or RV electrical system?
A: Yes! The module supports a wide input voltage range of DC 9V to 30V, making it fully compatible with standard 12V car systems as well as 24V truck, RV, and camper van power supplies. No additional converter is needed — simply connect it to your vehicle's DC power source.
Q: Will both USB ports fast-charge at the same time without slowing each other down?
A: Yes. The USB-A and USB-C ports are independently powered, meaning each port negotiates and delivers its maximum protocol speed (up to 30W on USB-A and 20W on USB-C) simultaneously without throttling the other. Just ensure your input supply can provide adequate current — a 5A-rated source is recommended for full dual-port output.
Q: What happens if I accidentally wire the input in reverse polarity?
A: The module features built-in reverse connection protection circuitry. If the input is connected with reversed polarity, the protection circuit activates to prevent damage to the module and any connected devices, keeping both the hardware and your devices safe during installation or use.
Q: Which smartphones and devices are compatible with this fast charging module?
A: The module supports a broad range of fast charging protocols including QC2.0/3.0/3.0+, Apple 2.4A, Huawei FCP/SCP, Samsung AFC, OPPO VOOC/DASH/WARP, Xiaomi Turbo Charge, and VIVO iQOO, covering the vast majority of Android and iOS devices on the market. Note that some device models may only support standard charging; fast-charge capability depends on individual device compatibility.