Heavy-Duty Battery Disconnect Switch – Fits 15.5-17mm Negative Top Posts, Requires ≥4.7” Clearance – 275A 12-48V Kill Switch for Cars, RVs, Boats
Condition: New
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FREE refund/replacement until Jan 31, 2026
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At a glance
- Condition
- New
- Model
- o2 socket-2
- Dimensions
- 5.3 x 2.1 x 1.8 in; 8 oz
- Operation Mode
- ON-OFF
- Current Rating
- 275 Amps
- Operating Voltage
- 48 Volts (DC)
- Contact Type
- Normally Open
Features 5
- 1. Check Before Buying! Fits ONLY 15.5-17mm negative battery terminals and needs at least 4.7 inches of clearance space. Please measure to avoid installation issues.
- 2. Quick Top-Post Installation Mounts directly to your battery without extra cables or lugs. Perfect for DIY users and beginners.
- 3. Heavy-Duty & Reliable Flame-retardant ABS shell + solid copper connectors ensure corrosion resistance and safe long-term use.
- 4. Strong Power Control Rated 275A continuous / 1000A cranking, works with 12V48V cars, RVs, boats, and marine applications.
- 5. Prevent Battery Drain Disconnects unused batteries, extending battery life and improving safety during storage.
Specs 12
| Operation Mode | ON-OFF |
|---|---|
| Current Rating | 275 Amps |
| Operating Voltage | 48 Volts (DC) |
| Contact Type | Normally Open |
| Connector Type | Clamp |
| Brand | Lemxily |
| Terminal | Clamp |
| Item dimensions L x W x H | 5.3 x 2.1 x 1.8 inches |
| Circuit Type | 1-way |
| Mounting Type | Flush Mount |
| Product Dimensions | 5.3 x 2.1 x 1.8 inches; 8 ounces |
| Manufacturer | Lemxily |
No specs match.
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Battery disconnect
Just what I needed. I don't drive my pickup all the time so when it's setting I'll use the battery disconnect to keep the drain off the battery. Very easy to install if your mechanical. Works flawlessly.
Reviewed in the United States on October 2, 2025 by J G.
Well made but could be shorter
Great device, fit barely in my Corolla battery space, but I would suggest to the manufacturer they make it 1 inch shorter
Reviewed in the United States on April 20, 2025 by craigery
DC Cutoff
Works as expected and simple install
Reviewed in the United States on October 27, 2025 by TJ
Great for the price works well on my top post vehicles
Helps to keep vehicles that sit for a long time charge off and can be used for no start while away
Reviewed in the United States on October 17, 2025 by Amazon Customer
Nice but brittle cast metal
Works well but the cast brass is very brittle and will snap if you try to Snug it down
Reviewed in the United States on December 13, 2025 by Philip J.
Interruptor de desconeccion
Producto de muy buena calidad se adacta perfecto a mi batería fácil de instalar recomendado
Reviewed in the United States on December 17, 2025 by francisco carabaño
Switch not working
Switch won't turn all the way to the greeen off position. .need re&placing
Reviewed in the United States on December 15, 2025 by roy swenson
it works
works as advertised, made in china as usual
Reviewed in the United States on October 12, 2025 by Darrin