Battery Doctor Battery Disconnect Switch Review
The battery disconnect switch is an aftermarket device, which you can use to safely disconnect the car batteries from your vehicle’s electrical system. And one of the brands that offer these types of switches is Battery Doctor.
Battery Doctor battery disconnect switches are said to offer a safer, more responsive performance than their counterparts in the market. And in this review, we checked out one of Battery Doctor’s classic battery disconnect model – the Mini Master Rotary Dial Battery Disconnect Switch – and put it through a series of tests to determine whether these claims are true or not.
- 69 mm x 69 mm x 75 mm
- For applications up to 48 volts DC
- ISO 8846-compliant
- Can be used with 1-2 batteries
- Continuous rating: 300 amperes
- Intermittent rating: 1000 amperes/5 seconds
- Crank rating: 700 amperes/10 seconds
- Rotary dial knob-operated on/off configuration
- Removable backplate and access panels on the sides
- Available in recessed or surface mounting options
- Includes 4 mounting holes for easy access
Things we liked:
- The disconnect switch is easy to operate and quick to respond. Simply rotate the dial to the off position, and battery power is cut off. The switch also provides a good low resistance connection once the switch is engaged.
- User-friendly installation. Battery Doctor certainly has made it easy for car owners to install and modify this switch according to their needs. The disconnect switch has knock-out panels on all sides, allowing for easy cable routing from different directions, as well as a removable backplate that allows access to the switch’s inner workings. We especially noticed how easy it is to install this device on the negative ground side.
- The switch comes with large 10mm studs with 17mm nuts, which made it easy for us to connect the switch to standard 0-2 gauge battery cable eyelets. The studs are also completely enclosed inside the non-conductive backing plate, so there is no worry about the metal parts coming into contact with the switch.
Things we didn’t like:
- The switch is a bit too small. Granted, this might be an advantage for those looking for a compact switch, but we find this to be a disadvantage in situations where you need a switch which you can easily reach and shut off during emergency situations.
The bottom line:
The rotary dial version of the Battery Doctor battery disconnect switch is a classic design, but it just goes to show that you don’t need to change anything that works quite well. Aside from being made of sturdy materials, these switches from Battery Doctor provide effective no-fuss performance every time.