This Seachoice Battery Select Switch allows a boater to choose between two batteries for starting or charging, and it provides the option of operating both batteries in parallel. This four-position switch offers the choices of: Battery 1, Battery 2, Both, Off. There is a positive click-stop on all positions for the most dependable operation. This switch does not have a lock. It is designed for use with 6-, 12-, 24-, and 36-volt systems, and is rated for 230 amps continuous, 345 amps momentary (5 minutes). It conforms to U.S. Coast Guard standards for ignition protection. This switch features a 60% larger sweep contact area for improved performance and longer switch life. It has a durable, marine-grade polycarbonate case, and can be surface- or rear-mounted. Its mounting holes match most other switches' mounting hole patterns. This switch has a 5 ½-In. diameter and is 2 5/8-In. high. Its cable lug size is 3/8-In. Seachoice is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Seachoice is run for and by boaters, offering a wide-ranging product line while remaining affordable.