TIENFOKOTA OBD2 Power Cable for Dash Camera – 12-30V to 5V/2A, 5ft USB-A Output
Product description
What this product is
The TIENFOKOTA OBD2 Power Cable is a dedicated power solution for dash cameras. It draws power directly from your vehicle’s OBD-II port, enabling constant power for 24/7 recording and parking mode security. The cable is designed to work with a wide voltage range and outputs a stable 5V/2A via USB-A to suit most dash cams that rely on a constant power supply.

How it works and who it suits
This hardwire charger plugs into the OBD-II port and provides a straightforward, plug-and-play setup. With a 5ft (around 1.5 metres) cable length, you have modest flexibility to route it neatly within a vehicle. The accessory is compatible with a broad array of 12V and 24V vehicles, including cars and trucks, making it a practical option when you don’t want to rely on lighter sockets or separate power packs.

Key strengths


On paper, the standout benefits are 24/7 power delivery, an intelligent charging circuit that maintains a steady 5V/2A and built-in low-voltage protection to guard the vehicle battery (11.9V/23.9V thresholds). This last feature helps prevent the dash cam from draining the car battery during long parking modes. The setup remains focused on charging only, data communication through the OBD port is not affected.

Limitations and caveats
It’s important to note this is a power-only solution. If your aim is data transfer or a different power profile, you may need a separate adapter. The 5ft cable is useful for mid‑to‑rear mounting, if your dash cam is tucked further away, you might want additional length. Also, while the input range is broad (12–30V), real-world performance can depend on your vehicle’s electrical load and voltage stability.

Why it could be the right choice
If you prioritise reliable, continuous power for dash cam security without tapping into the vehicle’s fuse box, this OBD-based solution offers a tidy, non-invasive option. It suits drivers who want a simple, low‑hassle install and who value a solution that protects the car battery with low-voltage cutoffs.



Who it isn’t the best for
Not ideal if you require data connectivity from the dash cam via the OBD port, or if your dash cam needs more than 5V/2A. It may also feel marginal if your dash cam is set far from the OBD port and you require a longer lead for a clean cabin install.

What to check before buying
- Confirm your dash cam’s power requirements align with 5V/2A.
- Ensure your vehicle provides stable 12–30V input and has an accessible OBD-II port.
- Measure routing space to ensure a 5ft lead reaches your preferred mounting area.
- Be aware this is a power adapter, not a data interface, if you need data transfer, consider alternatives.
Practical use scenario


Imagine you park at work with the dash cam running in parking mode overnight. With this cable, the camera stays powered without relying on the 12V socket, reducing battery drain risk and keeping footage available for morning review. The cable’s plug‑and‑play nature means you can achieve a neat installation without professional help.
The bottom line
If you want a straightforward, non-intrusive power solution for dash cams with a broad vehicle reach, this TIENFOKOTA OBD2 Power Cable offers a sensible balance of simplicity and safety. It’s not a jack‑of‑all‑trades, it focuses on reliable charging and battery protection, rather than data interfacing or high‑end power features. Consider your dash cam’s current draw and your mounting plan to decide if this aligns with your setup.
Frequently asked questions
- Will this interfere with other OBD functions? No, it is designed to provide charging power without touching data communication.
- Is it suitable for trucks or only cars? It’s described as compatible with 12V and 24V vehicles, including trucks.
- Can I use a longer cable if needed? The 5ft length is as provided, longer cables aren’t described in the data set.
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