Optimate TecMate Monitor O-128, Permanent Battery Lead with Integrated Battery Status/Charging System Monitor for 12 V Lead Batteries

Longer 100 cm / 40 inches length with M8 / 5/16 ″ eyelets suitable for a variety of battery terminals, with 15A fuse that protects the cable and electronics suitable for -40°C - premium quality! Encapsulated monitor with 4 LEDs shows the battery charge status from full to empty for 12V lead batteries (AGM, GEL or STD) - The LED corresponding to the charging status flashes every 3 seconds. SAE quick connection for charging the battery when needed - with weather-resistant - cap for use while driving Indicates charging system status when engine is running - Easy check before driving at a glance to see if the battery is charging.