The powerful battery you need is always within reach with these Energizer MAX AA alkaline batteries. These long-lasting batteries keep low-drain devices functioning at their best even with constant use. When left unused, Energizer MAX AA batteries will operate for up to 10 years, so even the pack residing in storage provides power when you most need it. The batteries are built to prevent leakage for up to 2 years after they are spent, so your devices are protected from sustaining permanent damage before their batteries can be changed. The reliable power of Energizer MAX batteries will keep your operation running at peak efficiency.