Duracell 3961 9V Alkaline Battery 2 Pack

Product Description

The DURACELL 3961 is a two-pack of 9-volt alkaline batteries engineered for dependable, long-lasting power in a wide range of devices. Built with Duralock Power Preserve Technology, these batteries are guaranteed to hold their charge for up to 5 years in storage, making them a practical choice for job-site kits, emergency equipment, and service vehicles where batteries may sit idle between uses. Electricians, HVAC technicians, plumbers, and general tradespeople rely on 9V batteries to power common tools and instruments used daily in the field.

These batteries are suited for residential and light commercial applications. Common uses include smoke and carbon monoxide detectors, multimeters, clamp meters, wire tracers, calculators, radios, flashlights, remote controls, clocks, and portable electronics. Keeping a supply on hand reduces downtime when field instruments lose power unexpectedly. The 2-pack format provides an immediate spare without requiring a separate order.

Key Features

• 9-volt alkaline chemistry for stable, consistent output across supported devices
• Duralock Power Preserve Technology maintains charge for up to 5 years in storage
• 2-pack format provides a ready backup for field and shop use
• Compatible with a broad range of portable instruments and detectors common in the trades
• Non-hazardous classification for straightforward transport and storage

Compatibility

Designed as a standard 9-volt alkaline replacement for any device requiring a 9V battery, including smoke detectors, carbon monoxide detectors, portable test instruments, and similar equipment.

Installation Notes

Installation is performed by the end user or the servicing technician at the point of device maintenance. Before replacing a battery in any detector or instrument, follow the device manufacturer's instructions for safe removal. Dispose of used alkaline batteries in accordance with local regulations. Do not mix new and used batteries or batteries of different chemistries within the same device.