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Small brass knife switch with side terminal and black lever on retail card

Battery Doctor

Battery Doctor PT-WIR20128 Knife Switch (Side Terminal) GPS accessory

SKU CH-8DST-EN3TP MPN PT-WIR20128

Side-terminal knife switch mounts on the negative post to disconnect the battery safely and stop unwanted drain

  • Product typeGPS Navigation Accessories
  • Key features? Mounts on the negative post;? Disconnects batteries safely
  • Mounts directly on the negative post for secure installation
  • Knife-switch action disconnects the battery safely and easily
  • Prevents unwanted battery drain when the vehicle is parked
  • Designed specifically for side-post terminal batteries

Battery Disconnect Switch

This knife switch mounts on a negative side-post terminal to isolate the battery. It stops unwanted drain when a vehicle or GPS accessory is stored. The switch operates by hand without tools. It is supplied in retail packaging as a new accessory.

Installers and Owners

It suits anyone who needs a simple way to cut power at the battery post. Builders who require a top-post version or a remote-solenoid setup should look elsewhere.

How it compares

Measured against everything we stock in GPS Mounts & Accessories, at today’s prices. Recalculated every night.

Price $21.99
Pricier than about 67% of the 716 comparable items (median $14.99).

Specifications

Product
Brand nameBATTERY DOCTOR
Product typeGPS Navigation Accessories
Size & build
Shipping weight0.95 kg
Package size182 × 117 × 43 mm

Questions about this item

Does the side-post terminal design limit the current the PT-WIR20128 can carry under sustained use?

The knife switch mounts on the negative side post and disconnects the battery to stop unwanted drain.

Will the PT-WIR20128 generate heat or noise when left connected all day?

It is a passive mechanical switch with no moving parts while closed, so it produces no heat or noise during continuous operation.

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