Energizer Ultimate Lithium Batteries, Lithium, AA

20 year shelf life. No. 1 longest lasting battery. Nothing outlasts energizer. www.energizer.com. Guaranteed not to leak. (See www.energizer.com/guarantee) Lightweight and performs in extreme temperatures. (-40 degrees F to 140 degrees F). Questions or comments? 1-800-383-7323. Made in Singapore.