1 x Pack of 24 Lighthouse AA LR6 Alkaline Batteries 2400 mAh. These Lighthouse high-performance alkaline batteries are designed to offer a high capacity for energy-hungry devices and offer a long storage life of up to 5 years. Alkaline batteries last longer when used with higher current devices and can, in some cases, outperform zinc-carbon products by up to 6 times, they also have less risk of leaking.