[The Battery You Need] Pack of 20 NANFU AA Alkaline batteries. Stronger power. Longer lasting. Safer usage. [Long lasting and no leakage] Two-tiered leakage prevention design and the anti-corrosion seal makes the batteries more reliable and keep your device safe from leakage. [Battery professional] Nanfu has been focused on alkaline batteries for over 30 years with world-class research & development capability. It stands as the leader of the alkaline battery as always. [Independent production] The independent and robust vertical integrated chain of manufacture is the key difference of Nanfu alkaline battery. It enables each battery to elevate customers' satisfaction possible. - Renowned vendor: Nanfu partners with world retailers to distribute batteries to each customer. It is recognized and trusted by tens of millions of customers.