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Knife-Blade Switches

Our patented Battery Doctor® switches are easy to install and simple to use. All of our knife-blade switches:

  • Mount on negative battery post.
  • Disconnect batteries quickly and easily.
  • Stop unwanted battery drain.
  • Help prevent theft, tampering and unauthorized use.
  • Improve safety and security of stored vehicles, RVs and seasonal equipment.
  • Are rated 250 amps continuous and 750 amps surge at 12 volts.
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