Features Extends Battery Life: This high current starter relay efficiently manages the power , reducing strain on the battery and extending its lifespan. Universal 12V Applications: Compatible with a wide range of 12V systems, making it suitable for various automotive and marine applications. Prevents Primary Battery Discharge: Safeguards the primary battery from unintended discharge, ensuring reliable starting power when needed. Water Resistant Construction: Crafted from water-resistant black phenolic plastic, providing durability and protection against environmental elements. Versatile Functionality: Functions as a standalone switch and can also be connected to a control system for added flexibility and control. Features: 1、It help extend battery life 2、Universal 12V applications 3、Prevents primary battery discharge 4、Made of water resistant black phenolic plastic 5、The main function of this product is to switch on, it can be used alone, it can be also connected to control to use Specification: Features: It help extend battery life. Universal 12V applications. Prevents primary battery discharge. Made of water resistant black phenolic plastic. The main function of this product is to switch on, it can be used alone, it can be also connected to control to use, but this product does not include additional control relay, and if the controller is connected, it mainly used in the dual battery. Specification: Product series: auto relay load: high power switching current: 500A switching voltage: 7.8VDC form: transformation type Rated current: 500A Protective features: ing type Coil power: 12V DC Weight: 235g DATA material 50ms Package Included: 1 x Heavy current relay Package List