[Non-Rechargeable] Do Not Charge [High Capacity & Long Lasting] 3500mAh AA lithium batteries deliver up to 3× longer runtime than standard alkaline batteries — ideal for high-drain devices like gaming controllers, cameras and flashlights. [Leak-Proof & Safer] Unlike alkaline batteries that can corrode and leak over time, our premium lithium-metal cells feature triple-sealed construction for safe, reliable performance. [All-Weather Performance] Lithium chemistry ensures a consistent 1.5V output from -40°F to 140°F, while alkaline batteries often fail in extreme cold or heat. Perfect for outdoor gear and security devices. [20-Year Shelf Life] Lithium batteries stay fresh and powerful for up to 20 years in storage — far exceeding the short shelf life of most alkaline batteries. A dependable choice for emergency backup. [What You Get] Double AA Lithium Batteries 4 pack(3500mAh), 6-Month Product Care Service

HW Lithium Batteries AA Size 4 Pack deliver superior power performance with an exceptional 3500mAh capacity, providing reliable long-lasting energy for your most demanding devices. These premium 1.5V AA lithium batteries maintain consistent voltage output for high-drain equipment including smart locks, Nest Doorbell,  gaming controllers and more. Engineered to excel in extreme conditions from -40°F to 140°F, HW AA batteries ideal for outdoor security systems and emergency preparedness.The advanced lithium-metal construction incorporates triple-sealed leak protection technology that safeguards your valuable electronics against potential damage from battery leakage. With an impressive 20-year shelf life, these double a batteries remain ready for immediate use, offering peace of mind for long-term storage and critical situations. Weighing 37% lighter than conventional alkaline batteries while delivering 40% more power, they provide stable voltage output that protects sensitive electronics and ensures maximum efficiency. HW aa 1.5 volt lithium non-rechargeable batteries are perfect for an extensive range of devices including smoke detectors, gaming controllers, VR equipment, RC toys, LED flashlights, weather radios, portable audio equipment, medical devices, and countless other household and commercial applications.For single-use only, DO NOT recharge.Choose HW double aa battery for peace of mind - your trusted partner in powering what matters most, ensuring your devices never let you down when you need them most.