GOGONFLY 12V-48V 275A Battery Power Master Switch

The GOGONFLY 12V-48V 275A Battery Power Master Switch is a heavy-duty, waterproof battery disconnect that safely isolates electrical systems for vehicles, boats, and equipment.

This compact, high-capacity isolator is built for demanding environments where reliable power shutdown and protection against parasitic drain are essential. Housed in rugged ABS with copper-tin plated studs, the switch supports multi-voltage systems from 12V to 48V and provides clear on/off rotation control. It arrives with mounting hardware and accessories to simplify installation, making it a practical choice for DIYers and professionals maintaining RVs, marine craft, trucks, and off-road vehicles.

How does this switch stop battery drain when a vehicle is parked?

Turning the rotary knob to the off position fully disconnects the battery from the vehicle’s electrical circuit, preventing electronics and accessories from drawing current while parked. This reduces the risk of a dead battery and extends battery life between uses.

• Complete electrical isolation when switched off
• Rated for continuous heavy loads (275A) and higher intermittent/cranking peaks
• Sealed ABS housing resists dirt and moisture that cause corrosion
• Simple clockwise on / counterclockwise off operation reduces installation errors

What safety and durability features protect the switch in harsh conditions?

The unit combines a fully enclosed design and corrosion-resistant internal studs to stand up to exposure from water, salt, and grime. Its construction minimizes short circuits and protects wiring during maintenance or storage.

• ABS plastic enclosure shields terminals from rain and road spray
• Copper tin-plated studs for better conductivity and corrosion resistance
• Robust mechanical rotary action rated for repeated use
• Includes heat-shrink tubing to insulate and protect connections

Which electrical systems and load levels can this disconnect handle?

The GOGONFLY switch is compatible with common vehicle and marine voltages and is specified for both continuous and short-duration peak loads needed during starting. That makes it suitable for accessories, house batteries, and main starter battery isolation in many platforms.

• Compatible with 12V, 24V, 36V and 48V electrical systems
• 275A DC continuous rating for sustained loads up to one hour
• 455A DC intermittent rating for short bursts (5 minutes)
• 1250A DC cranking rating for short engine-start peaks (10 seconds)

How easy is installation and what comes in the package?

The switch is supplied ready for a straightforward install and includes common hardware and connectors for a clean, secure fit. Basic hand tools are sufficient for most installations, and the included terminals and mounting bolts speed up the process.

• Package includes switch, 4 mounting bolts, 4 copper ring terminals, 4 heat-shrink tubes, and hex wrench
• Ring terminals sized for 3/8" stud connections ensure firm wiring attachment
• Pre-planned connector set reduces need to source additional parts
• Works with standard battery cable sizes used in RVs, boats, trucks and ATVs

Who is this for: This master battery disconnect suits vehicle owners, boaters, and fleet managers who want an easy, dependable way to isolate batteries for long-term storage, maintenance, or theft prevention. It's designed for DIY installers and professional shops needing a sealed, heavy-duty switch capable of handling starter peaks and accessory loads across 12V–48V systems.