From the manufacturer's website:
Duracell Coppertop Batteries are crafted and infused with triple corrosion protection for battery power you can count on. Duracell 9V Batteries provide long lasting power to your everyday devices such as flashlights, toys, and portable electronics. The pack of high performance 1.5 volt batteries will last in storage for up to 10 years, so you can rest assured they will be ready when you need them.
- Alkaline Batteries plus extra advanced Power Preserve technology
- Recommended for medical devices, remote controls, calculators, toys, games, and smoke detectors
Warning: Keep batteries away from children. If swallowed, consult a physician immediately. Battery can explode or leak if heated, disassembled, shorted, recharged, exposed to fire or high temperature or inserted incorrectly. Do not carry batteries loose in your pocket or purse.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.