OptiMate OBD II to SAE Adapter Cable - Cable O-37

 The Tecmate O-37 is a purpose-built adapter lead that converts a vehicle’s OBD II diagnostic port into an OptiMate SAE connector. This lets you connect OptiMate chargers or battery monitors without accessing the battery directly — ideal for cars, trucks, SUVs and other 12 V vehicles where under-bonnet access may be difficult or inconvenient. Also ideal for OptiMate Solar 10W or 20W kits positioned inside windshield, or OptiMate 2 connected to external AC power.

Features and Benefits

• Length: 100 cm cable — generous reach from OBD II port to charger/monitor connection point.
• OBD II to SAE adapter lead — Connects a vehicle’s standard OBD II port to an OptiMate SAE battery charger or monitor. 
  
• Enables easy in-cabin access — Perfect for connecting charging accessories inside the passenger compartment without raising the hood.
  
• Weather- and dirt-protected SAE connection system, including an in-line rubber seal — helps safeguard connections from water, dust and corrosion, ensuring reliable use outdoors and in varied conditions.
  
• 18 AWG / 0.82 mm² cable (cable diameter) — Durable conductor for reliable signal and current path. 
  
• Thicker insulation for better protection — SPT-1 (0.76mm)
• Current rating: 3A continuous / 5A max (7.5A fuse-protected for safety)
  
• Rated for very low temperatures — Cable remains flexible down to -40 °C, ensuring dependable performance in freezing climates.

What’s in the Box

• 1 x O-37 OBD II to SAE adapter cable (100cm)
• Weather-proof rubber sealing cap for the SAE connector

Warranty

• 3-Year Limited Replacement Warranty