BATTERY DOCTOR Battery Disconnect Switch: Top Post Knife Blade, Top Post, Negative
The BATTERY DOCTOR Battery Disconnect Switch is a top post knife blade switch with negative polarity and a maximum voltage of 12V. It features copper contacts and is identified by manufacturer part number 20138.
SKU 3G-OTH-497589
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.
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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 copper contacts and is identified by manufacturer part number 20138.
Frequently Asked Questions
What is a BATTERY DOCTOR Battery Disconnect Switch used for?
A BATTERY DOCTOR Battery Disconnect Switch isolates a 12V battery from its circuit to prevent parasitic drain, reduce fire risk during maintenance, and secure equipment. It is commonly used on vehicles, boats, RVs, and industrial machinery where a quick, reliable disconnect is needed.
What are the specifications of the BATTERY DOCTOR 20138 switch?
The BATTERY DOCTOR 20138 is a top post knife blade disconnect switch with negative polarity, rated for 12V maximum. It features copper contacts for efficient conductivity. The manufacturer part number is 20138, and it is designed for top post battery terminals.
Where to buy a BATTERY DOCTOR 20138 battery disconnect switch worldwide?
3G Electric supplies the BATTERY DOCTOR 20138 battery disconnect switch worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us to order this negative polarity, 12V top post knife blade switch with copper contacts.
How to install a BATTERY DOCTOR top post knife blade disconnect switch?
To install a BATTERY DOCTOR top post knife blade switch, first disconnect the battery negative cable. Clean the battery post, then slide the switch's copper contact over the post and tighten the nut. Connect the cable to the switch's other terminal. Always verify polarity and torque per manufacturer guidelines.
Used in
Common applications for BATTERY DOCTORBATTERY 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.
