Rayovac 303/357-1ZM Silver Oxide Watch Battery 1.5V

Product Description

The RAYOVAC 303/357-1ZM is a 1.5-volt silver oxide battery engineered for watches, calculators, and small electronic devices that require stable, long-lasting power in a compact cell. Silver oxide chemistry delivers a flat discharge curve, meaning voltage stays consistent from near-full charge down to depletion rather than dropping off gradually. This characteristic makes it well suited for precision instruments where voltage fluctuations can affect accuracy or function. The cell is manufactured to a zero-mercury formula, meeting current environmental standards for disposable batteries. Each pack contains one battery, carded for retail or counter display. Technicians, watchmakers, and electronics service shops stock these for on-demand replacements.

The 303/357-1ZM cell covers two common interchangeable size designations used across a wide range of consumer and professional electronics. It fits quartz watches, digital calipers, medical devices such as glucometers, hearing aids, and other compact electronic instruments that accept a 303 or 357 cell format. Trade buyers such as electronics repair shops, jewelers, and HVAC or instrumentation technicians who service digital measuring tools will find this cell applicable across multiple device types encountered in the field.

Key Features

• 1.5-volt silver oxide chemistry with flat discharge profile for stable device operation
• Zero-mercury formulation meets current environmental disposal requirements
• Dual-designation sizing covers both 303 and 357 cell formats
• Single-cell carded pack suitable for counter stock or individual replacement jobs
• Compact form factor fits watches, calipers, glucometers, and similar precision instruments

Compatibility

Designed as a direct replacement for devices requiring a 303 or 357 silver oxide cell at 1.5 volts, including quartz watches, digital calipers, and other compact electronic instruments that accept this cell size.

Installation Notes

Battery replacement in watches and precision instruments should be performed with non-magnetic, non-conductive tools to avoid damaging movement components or case seals. Power down or remove the device from service before opening the battery compartment. Observe polarity markings inside the compartment and seat the cell flat before closing. Dispose of spent cells in accordance with local regulations governing silver oxide batteries.

Technical Specifications

• Voltage: 1.5 volts
• Chemistry: Silver Oxide
• Mercury Content: Zero Mercury
• Pack Quantity: 1 per pack
• Weight: 0.07 pounds
• UPC: 012800414000

Standard Information

• Brand: RAYOVAC
• Manufacturer Part Number: 303/357-1ZM