Procell Alkaline Intense Power 9V industrial batteries are recommended for use in high drain professional device. 

• Delivers Longer lasting power in high drain professional devices, that may result in fewer battery replacements and may therefore lead to savings on operating costs that are associated with battery replacement
• Guaranteed 5 years in Storage
• Manufactured using superior cell design to ensure high-quality cell construction.
• Economically packaged in bulk and individually date-coded for effective inventory management
• Operating temperatures from -4°F to 129.2°F
• Package of 12