CT Battery Disconnect Switch 12V 48 V Power Cut Off Isolator for Car RV Boat Negative Terminal

BTSwitch

Isolator manual switch

Selling a battery disconnect switch that fits 12V to 48V systems. Mounts on the negative terminal and gives a quick way to cut battery power—good for safety or storage.

The clamp is made from high-conductivity brass with a copper post for solid contact. Flame-retardant plastic shell and a strong steel screw make it durable and resistant to heat, vibration, and moisture. IP54 rated, so it handles splashes and dust.

Fits battery posts with a 15 to 17mm tapered clamp. Works on cars, trucks, motorcycles, RVs, boats, and even 48V trailers or solar setups. Pretty universal if your battery’s post is the right size.

No tools needed. Just twist the knob to turn the battery on or off. Helps avoid parasitic drain when the vehicle sits unused. A good way to protect your battery long term.

Takes up very little space and installs cleanly. Great for tight engine bays or small battery compartments where you still want a solid and safe disconnect solution.