Unsold Automobiles Use Reed Sensors to prevent Battery Drain

In the automotive industry, ensuring the readiness of unsold vehicles for sale is crucial. One significant concern is the preservation of battery life in unsold vehicles during storage and transportation. To address this, normally-closed reed sensors play a pivotal role in effectively deactivating batteries until they reach their intended destination.

These normally closed reed sensors are fitted with an external magnet to change their state to “open” during transportation or storage which disengages the battery circuits to the unsold vehicles circuitry. This ensures that batteries remain in optimal condition, preserving charge and longevity. Activation or deactivation can be controlled by removing the magnet. Without removing the magnet, the cars doors cannot be opened for security reasons. Minimising battery drain also reduces the need for premature battery replacements, thereby lowering overall operational costs for manufacturers and dealers

As automotive technology evolves, the use of normally-closed reed sensors may expand beyond battery deactivation to include broader vehicle management applications. Enhanced integration with smart vehicle systems could enable real-time monitoring and control, further optimizing operational efficiencies and customer satisfaction.

The integration of normally-closed reed sensors for deactivating batteries in unsold vehicles demonstrates a practical and efficient solution to a critical industry challenge. By leveraging these sensors, automotive manufacturers uphold quality standards, reduce costs, and ensure vehicles are delivered to customers with batteries in optimal condition.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Magnet Biasing Type

Some special field applications, for the sake of circuit logic, security concerns, or a power saving necessity, require a sensing signal Continue reading -> Jul 14, 2025

Recommended Products

The Reed Switches and Sensors used in such normally closed applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

Ultra-miniature NC SMD Reed Sensor R5B

R5B-S ultra-miniature NC Reed Sensor DrawingR5B-S Reed Sensor Pad L:ayoutR5B ultra-miniature NC Reed Sensor Carrier Continue reading -> Jul 14, 2025

NC Reed Sensor R2B, Standard Size

Drawing of R2B-S NC Reed SensorR2-S Gull-wing SMD Formed Reed Sensor Pad LayoutDrawing of R2B-F NC Reed SensorR2E-F Low Profile SMD Formed Continue reading -> Jul 14, 2025