[500 AMP BATTERY ISOLATOR] The 500 Amp Battery Isolator is designed to isolate a second battery or applications where multiple batteries need to be isolated, making it ideal for audio systems, navigation, winches, generators, and similar accessories without causing voltage drop in the second battery, while preventing the main battery from discharging. [PREMIUM QUALITY] The 500 Amp Battery Isolator uses high-quality copper coiled wire to improve electrical and thermal resistance, helping extend service life. It meets or exceeds applicable part number standards and is endurance-tested for reliable performance in extreme environments. [HIGH CURRENT ISOLATOR] This battery isolator has a rated voltage of 12V and can provide a stable 500A continuous current at 12V, with a surge capacity of up to 700A. It offers improved performance over traditional isolators and prevents voltage drop to auxiliary batteries while protecting the main battery. [KEY FEATURES] Prevents the main battery from discharging. When the main and secondary batteries are connected, the isolator allows them to operate together when the engine is running and separates them when the engine is off. This reduces parasitic discharge from the secondary battery to the main battery, helping preserve the main battery's charge and extend its lifespan. Fitment: Suitable for multi-battery systems in vehicles and equipment such as cars, SUVs, trucks, boats, RVs, and mobile power setups Color: Silver Material: Copper Package Contents: 1 x Battery Isolator Note: Other items not included. Due to lighting effects and monitor settings, the actual color may vary slightly from the image. Measurement tolerance: +/- 1-3 cm.