We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
BATTERY DOCTOR Top Post Knife Blade Battery Disconnect Switch - Battery Disconnect Switches
BATTERY DOCTORBattery Disconnect Switches

BATTERY DOCTOR Top Post Knife Blade Battery Disconnect Switch

The BATTERY DOCTOR Battery Disconnect Switch is a top post knife blade switch with negative polarity and a maximum voltage of 12V. It features brass contacts and is identified by manufacturer part number 20208.

SKU 3G-OTH-497591

Brand
BATTERY DOCTOR
Item
Top Post Knife Blade Battery Disconnect Switch
Part Number
20208
Category
Battery Disconnect Switches
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

BATTERY DOCTOR
Manufacturer Part Number
20208
Type
Top Post, Negative, 12V
Polarity
Negative
Maximum Voltage
12V
Contact Material
Brass

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BATTERY DOCTOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BATTERY DOCTOR Battery Disconnect Switch is a top post knife blade switch with negative polarity and a maximum voltage of 12V. It features brass contacts and is identified by manufacturer part number 20208.

Frequently Asked Questions

What is a BATTERY DOCTOR Battery Disconnect Switch used for?

This top post knife blade switch disconnects the battery in vehicles or equipment to prevent parasitic drain, reduce fire risk during storage, and secure electrical systems during maintenance. It is suitable for 12V negative-ground applications.

What are the specifications of the BATTERY DOCTOR 20208 switch?

The BATTERY DOCTOR 20208 is a top post knife blade disconnect switch with negative polarity, a maximum voltage of 12V, and brass contacts. It is designed for top-post battery terminals and is identified by MPN 20208.

Where to buy a BATTERY DOCTOR 20208 battery disconnect switch worldwide?

3G Electric supplies the BATTERY DOCTOR 20208 battery disconnect switch to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive the correct part for your application.

How to install a top post knife blade battery disconnect switch?

Disconnect the negative battery cable first. Remove the existing terminal nut, place the switch over the battery post, and tighten securely. Reattach the cable to the switch stud. Always verify polarity matches your system (negative in this case) before finalizing.

Used in

Common applications for BATTERY DOCTOR
Fleet maintenance — Battery Doctor corrosion inhibitor MPN 16204 applied to battery terminals on trucks and buses to prevent acid buildup.
Heavy equipment electrical systems — Battery Doctor toggle switch MPN 20561 used for on/off control of auxiliary lighting on construction machinery.
Vehicle panel mounting — Battery Doctor switch panel MPN 20591 used to mount indicator lights in truck cabs.
Marine battery systems — Battery Doctor corrosion inhibitor MPN 16201 applied to terminal connections to reduce corrosion in humid environments.
Industrial battery rooms — Battery Doctor switch panel MPN 20590 used to organize control switches for stationary battery banks.
Bus electrical maintenance — Battery Doctor toggle switch with guard MPN 20565 installed to prevent accidental activation of battery disconnect circuits.
Not sure this is the right part? Photo-identify it

BATTERY DOCTOR Products

3G Electric supplies BATTERY DOCTOR battery disconnect switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BATTERY DOCTOR

View all BATTERY DOCTOR parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first