70mai OBD-II Hardwire Kit

It transforms the 24h parking surveillance mode with a plug-and-play installation that takes advantage of the OBD port without touching the fuse box, preserving the vehicle warranty. Its electronics supply a stable 5V/2.4A to any 70mai dash cam via Micro-USB or USB-C connectors, and incorporates DIP-switches to adjust voltage and cut-off time, preventing battery drain.

Tool-free installation

Simply locate the OBD-II port, plug in the connector and hide the 4m cable; the dash cam receives ACC signal to automatically enter parking recording.

Configurable continuous power supply

User selectable between four protection thresholds (11.6V / 11.9V / 12.2V / 12.5V on 12V vehicles; values equivalent to 24V) and six time windows (1h - 24h or permanent) to balance autonomy and battery health. The default setting is 11.9 V and 24 h.

Complete electrical protection

Integrates undervoltage, overcurrent, overload, short circuit and reverse polarity, so power is interrupted before the electrical system is damaged.

Full compatibility

Works with any 12V - 30V battery and all 70mai dash cam models, including high power models with 4K video.

Our expert's opinion

Compared to classic hardwires - such as the 70mai UP04 or the Viofo HK4 ACC-Fuse - thisOBD kit stands out for its absolute simplicity: no additional fuses are required and no hidden ACC lines need to be located. It also brings a finer cut-off range (11.6V to 12.5V) and up to 24 hours of adjustable monitoring, features that many rival kits limit to two voltage levels or fixed time. As a point of note, the OBD connector is usually accessible in the knee area, somewhat less discreet than the fuse box installation; still, for drivers looking for speed, warranty protection and detailed monitoring of consumption, the 70mai OBD-II Hardwire Kit offers a performance-to-convenience ratio that is hard to match.

Technical Specifications 70mai OBD-II Hardwire Kit:

• Brand: 70mai
• Model: OBD-II Hardwire Kit
• Compatible cameras: all 70mai Dash Cam cameras
• Allows 24-hour camera surveillance
• Length: 4 meters
• Input: 12V~30V (Adaptable to 12V/24V batteries)
• Output voltage: 5V 2.4A
• Voltage settings: 6
• Colour: Black

Box Contents:

• 1 x 70mai OBD-II Hardwire Kit