1950-1979 Side Post Battery Disconnect with Bypass Circuit
Secure Your VW and Preserve Memory Settings with Built-In Bypass Circuitry
Enjoy theft deterrence without sacrificing convenience using this Side Post Battery Disconnect Dial with built-in memory bypass circuitry. Designed for 12-volt electrical systems, this disconnect switch prevents battery drain and engine startup while allowing low-current accessories like radios and clocks to retain memory via the integrated bypass circuit. A simple jumper wire and weatherproof 15-amp fuse ensure protected power to critical circuits even when the main battery circuit is disconnected.
Whether preserving battery charge during storage or preventing unauthorized use, this disconnect installs easily and includes clear instructions to simplify setup on your air-cooled VW.
Fits the Following VW Models:
• Standard Beetle 1950–1977
• Super Beetle 1971–1979
• Bus 1950–1979
• Karmann Ghia 1956–1974
• Thing 1973–1974
• Type 3 1962–1973
Features
• Heavy-duty side post battery disconnect switch
• Integrated bypass circuit maintains power to memory accessories
• Weatherproof 15-amp blade fuse protects bypass circuit
• Theft deterrent by isolating starter power from battery
• Helps prevent battery drain during long-term storage
• Simple rotary dial controls main battery circuit
• Compact design fits standard side post terminals
• Easy installation – instructions included
Dimensions and Weight
• Fits standard side post battery terminals
• Voltage: 12V
• Bypass fuse: 15A weatherproof blade style
• Weight: 0.85 lbs (0.39kg) approx.
Tech Notes
• Bypass circuit allows low-current power feed to radios, clocks, and security systems
• Fuse protects bypass circuit against overload or theft attempts
• Ideal for stored vehicles or theft-prone areas
• Does not affect starting circuit unless dial is disconnected
Because Details Matter
Protecting your vintage VW while preserving key functions is now easy with this bypass-equipped battery disconnect. Engine immobilization and battery protection meet convenience.
Also known under these part numbers: (For reference only)