Car charger Acefast B1 — 38W dual-port (USB-C + USB-A), PPS, Power Delivery, Quick Charge 3.0, AFC, FCP, black

Acefast B1 is a 38W in-car charger with two output ports (USB-C and USB-A) designed to provide regulated fast charging for smartphones, tablets and other USB-powered devices while driving. The USB-C port supports up to 20W with Power Delivery and PPS adaptive charging, while the USB-A port delivers up to 18W with Quick Charge 3.0 and is compatible with AFC and FCP protocols. The compact black housing is made of fire-resistant PC material and integrates multiple protection features for safe operation in vehicles.

Advantages

The charger supports simultaneous charging of two devices with a combined output of up to 38W and adapts output dynamically to device requirements using PPS and Power Delivery on the USB-C port and Quick Charge 3.0 on the USB-A port. Built-in protections guard against overheating, overvoltage, overload and electrostatic discharge. The small form factor and lightweight construction make it convenient for everyday in-car use without occupying much space.

Suitable for

• Charging smartphones and tablets while driving
• Powering navigation units, dash cams and portable Wi‑Fi hotspots
• Keeping a second device charged (earbuds, power bank, or Bluetooth accessories)
• Drivers who need fast charging compatibility across multiple standards

Key specifications

• Input: DC 12V–24V (vehicle cigarette lighter socket)
• USB-C output: up to 20W (supports PPS and Power Delivery)
• USB-A output: up to 18W (supports Quick Charge 3.0, AFC, FCP)
• Combined output when both ports used: up to 38W (20W + 18W)
• Housing material: fire-resistant PC (V0 rated)
• Dimensions: 28.6 x 28.6 x 46.4 mm
• Weight: approximately 42 g
• Safety and compliance: V0 fire protection rating, PSE, 3C, ERP6 energy efficiency certificate

How to use

Insert the Acefast B1 into the vehicle’s 12V/24V accessory socket. Connect a USB-C or USB-A cable between the charger and your device. The charger will negotiate the appropriate protocol automatically (PPS/PD on USB-C or QC/AFC/FCP on USB-A) and deliver the optimal charging current. When charging two devices simultaneously, the charger allocates power across both ports up to the combined 38W limit. Unplug the charger when not in use or when the vehicle is powered off to avoid unnecessary load on the battery.

Usage recommendations

Use certified USB cables and compatible device profiles to ensure optimal charging speed and safety. Avoid exposing the charger to prolonged direct sunlight or moisture and inspect the vehicle socket for damage before use. Disconnect heavy loads if the vehicle battery is weak or the engine is off for extended periods.