RAYOVAC 3.6v 850MAH

The barcode 840821021361 corresponds to a lithium-ion battery pack with a nominal voltage of 3.6V and an internal resistance of 850mAh. The product is likely a rechargeable battery from Rayovac, a well-known brand in the battery industry.

Rayovac 3.6V 850mAh batteries are commonly used in various applications, including flashlights, cameras, and other portable electronic devices. These batteries are designed to provide reliable performance and long lifespan.

There are no specific warnings or concerns related to this product, as it is a standard lithium-ion battery. However, as with any battery, there are some general precautions to be aware of:

• Avoid puncturing the battery casing, as this can cause a short circuit and potentially lead to a fire.
• Keep the battery away from heat sources, flammable materials, and metal objects that could cause a short circuit.
• Do not attempt to charge or discharge the battery beyond its recommended capacity.

As for prices, they may vary depending on the retailer, location, and application. On average, a single Rayovac 3.6V 850mAh battery can cost anywhere from $1.50 to $5.00, depending on the quantity purchased.

Please note that this information is based on general knowledge and may not be specific to a particular product or batch of batteries.