The Tronsmart C3PTA QC 3.0 42W Car Charger is a compact three-port USB car charger designed for drivers who need to charge multiple devices while traveling. It combines one Qualcomm Quick Charge 3.0 port with two Tronsmart VoltIQ USB ports, providing up to 42W of total charging power.

The dedicated QC 3.0 port supports variable output from 3.6–6.5V/3A, 6.5–9V/2A and 9–12V/1.5A, while the two VoltIQ ports provide up to 5V/2.4A each, with 4.8A combined output.

With support for 12–24V DC vehicle input, the C3PTA can be used in a wide range of cars and other compatible vehicles. Its three-port design allows you to charge a smartphone, passenger's phone, tablet, power bank or other USB-powered accessories at the same time.

Key Features

• Tronsmart C3PTA 42W Car Charger
• 42W Total Maximum Output
• 3 USB-A Charging Ports
• 1 × Qualcomm Quick Charge 3.0 Port
• 2 × Tronsmart VoltIQ Ports
• QC 3.0 Fast Charging
• VoltIQ Intelligent Charging Technology
• QC 3.0 Backward Compatibility
• 12–24V DC Vehicle Input
• QC 3.0 Output up to 18W
• VoltIQ Output up to 5V/2.4A Per Port
• Up to 4.8A Combined VoltIQ Output
• Charge Up to 3 Devices Simultaneously
• Compact Design
• Over-Current Protection
• Over-Charging Protection
• Short-Circuit Protection
• CE, FCC and RoHS Compliance
• Suitable for Cars and Compatible Vehicles

42W Total Charging Power

The C3PTA is rated for 42W of total output, which is substantial for a compact three-port car charger. Independent testing of the model recorded a combined output of approximately 42.71W when all three ports were operating at their rated maximums.

The total output is achieved by combining the dedicated QC 3.0 port with the two VoltIQ ports.

This means you can use the charger for several devices during a road trip instead of carrying separate car chargers.

For example:

QC 3.0 port: Compatible Android smartphone
VoltIQ port: Passenger's smartphone
VoltIQ port: Power bank or other USB accessory

Qualcomm Quick Charge 3.0

The C3PTA features a dedicated Qualcomm Quick Charge 3.0 port for compatible devices.

Its published QC output profiles are:

• 3.6–6.5V / 3A
• 6.5–9V / 2A
• 9–12V / 1.5A

The maximum output of the QC port is approximately 18W, depending on the negotiated voltage and connected device.

Quick Charge 3.0 can provide significantly faster charging than basic 5V USB charging when the connected device supports the technology.

Two VoltIQ Charging Ports

In addition to the QC 3.0 port, the C3PTA has two VoltIQ USB ports.

Each VoltIQ port is rated for up to 5V/2.4A, while their combined output is specified at 5V/4.8A.

VoltIQ is designed to intelligently identify the connected device and provide an appropriate charging current for compatible 5V USB devices.

This makes the two ports useful for devices that do not support Qualcomm Quick Charge.

Charge Three Devices Simultaneously

One of the biggest advantages of the C3PTA is its three-port configuration.

You can charge up to three USB devices simultaneously, making it particularly useful for families, passengers and long journeys.

A typical setup could be:

• Smartphone 1 → QC 3.0
• Smartphone 2 → VoltIQ
• Power bank → VoltIQ

All three ports can be used at the same time, subject to the charger's total power capabilities and the requirements of the connected devices. Testing of the C3PTA has demonstrated simultaneous operation of all three ports.

12–24V Vehicle Input

The C3PTA supports DC 12–24V input, making it suitable for vehicles with compatible 12V or 24V electrical systems. The listed maximum input specification is 5A.

This gives the charger a wide operating range for compatible vehicles rather than limiting it to a single vehicle voltage.

Always confirm that your vehicle's power socket matches the charger's supported input range before use.

Ideal for Road Trips

The three-port design makes the C3PTA particularly useful for road trips.

Instead of passengers competing for a single USB charging port, multiple people can connect their devices at the same time.

It is suitable for:

• Family road trips
• Long-distance driving
• Daily commuting
• Ride-sharing
• Business travel
• Taxi use
• Delivery drivers
• Navigation-heavy journeys
• Camping trips

Smartphone Charging

The C3PTA can charge smartphones through either the dedicated QC 3.0 port or the VoltIQ ports.

The QC 3.0 port is best suited to compatible Quick Charge devices, while the VoltIQ ports provide standard 5V charging with intelligent current management.

Compatibility depends on the smartphone and its supported charging protocols.

Android Compatibility

Quick Charge 3.0 was designed for compatible Android smartphones, particularly devices using supported Qualcomm Snapdragon platforms.

The C3PTA is backward compatible with Qualcomm Quick Charge 1.0, 2.0 and 3.0 according to published product information.

Examples of devices listed in product documentation include models from LG, Xiaomi, HTC and other manufacturers.

For newer smartphones using USB Power Delivery or proprietary charging technologies, the actual charging speed may differ.

iPhone Charging

The C3PTA can also be used with iPhones through an appropriate USB-A charging cable.

Since the C3PTA is an older USB-A/QC 3.0 design, it should not be confused with a modern USB-C Power Delivery car charger. iPhone charging speed depends on the iPhone model, cable and charging protocol.

The VoltIQ ports are particularly useful for devices that require standard 5V USB charging.

Charging Tablets and Power Banks

The C3PTA can also be useful for USB-powered accessories such as compatible tablets and power banks.

The two VoltIQ ports can provide up to 5V/2.4A per port, making them suitable for many conventional USB charging devices.

However, devices that require USB-C PD or another proprietary fast-charging standard may not reach their maximum charging speed through this charger.

Compact Design

The C3PTA is designed to fit into a vehicle's 12V accessory socket without taking up significant space.

Published dimensions are approximately:

67 × 34 × 24mm

and the listed net weight is approximately 27.8g.

This makes it easy to leave in the car or move between compatible vehicles.

Safety Protection

The C3PTA incorporates protection features intended to improve charging safety.

Published specifications mention protection against:

• Over-current
• Over-charging
• Short circuits
• Excessive charging conditions

The model is also listed with CE, FCC and RoHS certifications/compliance information in product specifications.

These protection systems help protect both the charger and connected devices during normal use.

Dedicated QC 3.0 Port

The C3PTA's dedicated QC 3.0 port is clearly separated from its two VoltIQ ports.

This makes it easy to identify where to connect a Quick Charge-compatible smartphone.

The QC port can dynamically provide the appropriate voltage within its supported range rather than remaining fixed at one output voltage.

VoltIQ for Standard USB Devices

The two VoltIQ ports are useful when you have devices that do not support Qualcomm Quick Charge.

VoltIQ intelligently adjusts charging current for compatible 5V USB devices, with each port supporting up to 2.4A.

This gives the C3PTA greater flexibility than a car charger with only a single Quick Charge port.

Tronsmart C3PTA Specifications

Specification	Details
Brand	Tronsmart
Model	C3PTA
Product Type	3-Port USB Car Charger
Total Power	42W
Number of Ports	3 × USB-A
Fast Charging Technology	Qualcomm Quick Charge 3.0
Smart Charging Technology	Tronsmart VoltIQ
Input	DC 12–24V
Maximum Input Current	5A
QC 3.0 Output	3.6–6.5V/3A
QC 3.0 Output	6.5–9V/2A
QC 3.0 Output	9–12V/1.5A
VoltIQ Output	5V/2.4A per port
Combined VoltIQ Output	5V/4.8A
Maximum QC Power	Approx. 18W
Total Maximum Power	42W
Simultaneous Charging	Up to 3 devices
Dimensions	Approx. 67 × 34 × 24mm
Weight	Approx. 27.8g
Ports	1 QC 3.0 + 2 VoltIQ
Safety	Over-current, over-charging and short-circuit protection
Certifications	CE, FCC, RoHS

Specifications are based on published C3PTA documentation and retailer/product testing information.

QC 3.0 vs VoltIQ

Feature	QC 3.0 Port	VoltIQ Ports
Ports	1	2
Maximum Voltage	Up to 12V	5V
Maximum Current	Up to 3A	2.4A per port
Technology	Qualcomm Quick Charge 3.0	Tronsmart VoltIQ
Best For	QC-compatible smartphones	Standard USB devices
Fast Charging	Yes, compatible devices	Intelligent 5V charging
Total Output	Part of 42W system	Up to 4.8A combined

Tronsmart C3PTA vs Basic Car Charger

Feature	Tronsmart C3PTA	Basic Car Charger
Total Power	42W	Usually lower
USB Ports	3	Usually 1–2
QC 3.0	Yes	Often No
VoltIQ	Yes	Usually No
Three Devices	Yes	Depends
12–24V Input	Yes	Depends
Fast Charging	Yes	Depends
Compact	Yes	Usually
Best For	Multiple-device charging	Basic charging

Who Should Buy Tronsmart C3PTA?

Families

Three USB ports make it convenient for multiple passengers to charge their phones.

Road-Trippers

The combination of QC 3.0 and VoltIQ makes the charger useful during long journeys.

Android Users

Compatible Quick Charge smartphones can take advantage of the dedicated QC 3.0 port.

Drivers Using Navigation

Keep your smartphone powered while using GPS navigation, Bluetooth and other power-intensive functions.

Multiple-Device Users

Charge a phone, power bank and another USB accessory simultaneously.

Older USB-A Device Users

The USB-A ports are useful for accessories that still rely on traditional USB charging cables.

Why Buy Tronsmart C3PTA from TechShek.pk?

42W Total Output

Get up to 42W of combined charging power from a compact car charger.

Three USB Ports

Charge up to three compatible devices at the same time.

Qualcomm Quick Charge 3.0

Use the dedicated QC port with compatible Quick Charge smartphones.

VoltIQ Technology

The two additional USB ports intelligently manage 5V charging for compatible devices.

Compact Design

The C3PTA measures approximately 67 × 34 × 24mm, making it easy to keep inside your vehicle.

Wide Vehicle Compatibility

Its 12–24V DC input supports compatible vehicle electrical systems.

Frequently Asked Questions

1. What is the Tronsmart C3PTA?

The Tronsmart C3PTA is a 42W three-port USB car charger featuring one Qualcomm Quick Charge 3.0 port and two VoltIQ ports.

2. How many devices can it charge?

It has three USB-A output ports, allowing up to three compatible devices to be charged simultaneously.

3. What is the total output power?

The C3PTA is rated at 42W total output.

4. Does it support Quick Charge 3.0?

Yes. One of its three USB ports supports Qualcomm Quick Charge 3.0.

5. What is the maximum QC 3.0 output?

The QC port supports up to 3.6–6.5V/3A, 6.5–9V/2A or 9–12V/1.5A, depending on the connected device.

6. What are the other two ports?

The other two ports use Tronsmart VoltIQ technology and provide up to 5V/2.4A per port.

7. Can I charge three phones at once?

Yes, you can connect three compatible USB devices simultaneously, subject to the charger's total output capabilities.

8. Is it compatible with iPhone?

Yes. iPhones can be charged using an appropriate USB-A charging cable, although the maximum charging speed depends on the iPhone and charging protocol.

9. Does it work with Android phones?

Yes. Compatible Android phones can use either the QC 3.0 port or VoltIQ ports.

10. Is QC 3.0 backward compatible?

Yes. Published product information states compatibility with Qualcomm Quick Charge 1.0, 2.0 and 3.0.

11. What vehicles does it support?

It supports compatible vehicles providing 12–24V DC input.

12. Is the C3PTA a USB-C charger?

No. The C3PTA uses three USB-A output ports.

13. Can it charge a power bank?

Yes, provided the power bank supports charging through a compatible USB connection.

14. Is it suitable for long road trips?

Yes. Its three ports, 42W total output and compact design make it well suited to long journeys and multiple-device charging.

15. Is the Tronsmart C3PTA compact?

Yes. Its published dimensions are approximately 67 × 34 × 24mm, with a weight of around 27.8g.

16. Does it have safety protection?

Yes. Published specifications list protections including over-current, over-charging and short-circuit protection.

17. Does it support VoltIQ?

Yes. Two of its USB ports use Tronsmart VoltIQ intelligent charging technology.

18. Is the C3PTA suitable for modern USB-C phones?

It can charge USB-C phones with an appropriate USB-A-to-USB-C cable, but it does not provide USB-C Power Delivery. Devices requiring USB PD or a proprietary USB-C fast-charging standard may need a newer USB-C PD car charger.

Conclusion

The Tronsmart C3PTA QC 3.0 42W Car Charger is a practical multi-device car charging solution for users who still rely on USB-A cables and want a combination of fast charging and standard smart charging.

Its 42W total output, three USB-A ports, dedicated Qualcomm Quick Charge 3.0 port, two VoltIQ ports, 12–24V input and built-in protection features make it particularly useful for families, commuters and road-trip users.

The dedicated QC 3.0 port is ideal for compatible Quick Charge smartphones, while the two VoltIQ ports provide up to 5V/2.4A each for compatible standard USB devices. With three devices connected, the charger can provide a convenient central charging point for the entire vehicle.

For customers searching for Tronsmart C3PTA price in Pakistan, Tronsmart 42W car charger, Tronsmart QC 3.0 car charger Pakistan, Tronsmart three-port car charger, 42W USB car charger Pakistan or Tronsmart VoltIQ car charger, the C3PTA remains a capable option for USB-A-based vehicle charging.