Battery Doc Top-Mount Knob-Style Battery Disconnect Switch with Fused Bypass stops battery drain, prevents theft, reduces the danger of fire and explosion in stored vehicles and stops spontaneous start up of your machinery. Easy to install on negative battery post and ideal for anything that requires battery power. To disconnect, simply unscrew the knob a few turns. Tighten the knob to reconnect. Knob can be completely removed to deter theft. Compact size fits most battery compartments. Rated 125A continuous and 500A surge at 12V. Includes a 15A fused bypass that maintains computer settings, radio, clock and more while battery is disconnected.

WARNING: Cancer and Reproductive Harm -

WARNING: Cancer and Reproductive Harm -


  • Manufacturer #: 20309
  • Amps: 125
  • Length: 1-3/4"
  • Height: 7"
  • Overload Protection: No
  • Diameter: 4-1/2"
  • Hardwire Capable: No
  • Peak Watts: 500

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