BATTERY DOCTOR 20148 Battery Disconnect Switch, Top Post, Negative, 12V
The BATTERY DOCTOR Battery Disconnect Switch (MPN 20148) is a top-post knife-blade switch with negative polarity and a maximum voltage of 12V, featuring copper contacts. 3G Electric interprets customer demand and…
SKU 3G-OTH-497590
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 (MPN 20148) is a top-post knife-blade switch with negative polarity and a maximum voltage of 12V, featuring copper contacts. 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments — and far more — with specialist depth in electrical controls as an authorised distributor.
Frequently Asked Questions
What is a BATTERY DOCTOR Battery Disconnect Switch used for?
A BATTERY DOCTOR Battery Disconnect Switch (MPN 20148) isolates a 12V battery from a vehicle or equipment circuit to prevent parasitic drain, reduce fire risk during maintenance, and secure stored equipment. It is commonly used on trucks, RVs, boats, and industrial machinery where a reliable negative-side disconnect is required.
What are the specifications of the BATTERY DOCTOR 20148 switch?
The BATTERY DOCTOR 20148 is a top-post knife-blade disconnect switch with negative polarity, rated for a maximum voltage of 12V. It features copper contacts for low resistance and high current capacity. The switch is designed for top-post battery terminals and is manufactured by BATTERY DOCTOR.
Where to buy a BATTERY DOCTOR 20148 battery disconnect switch worldwide?
3G Electric supplies the genuine BATTERY DOCTOR 20148 battery disconnect switch to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this switch for your 12V negative-side disconnect application.
How to install a top-post knife-blade battery disconnect switch?
To install a top-post knife-blade switch like the BATTERY DOCTOR 20148, first disconnect the battery negative cable. Clean the battery post, then slide the switch's copper contact over the post and tighten the nut. Reattach the cable to the switch's terminal. Always verify polarity matches your system (negative in this case) before tightening.
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.
