Generally, modern alkaline batteries and other primary batteries, such as 3-, 6—3- and 7-volt lithium batteries, can be stored for up to 10 years with moderate capacity loss. As with all batteries, they must be kept away from extreme temperatures and never freeze. The lifespan of a battery is the amount of time it can be stored without losing its performance. This varies depending on the type of battery, but for most lithium-ion batteries, the lifespan is about three years.
After that time, the battery may not hold a charge as well or may not work at all. For example, lithium-ion batteries discharge faster in high temperatures than in cold temperatures. We use high-quality lithium cells that combine to provide the most durable safe battery pack possible. However, this takes a long time, so if you store your batteries during the winter, for example, it's not usually too long.
This doesn't mean you need to replace the battery right away; most expired batteries will still work, but they won't be as efficient as before. That's why it's important to check the charge level of your batteries regularly and recharge them if they start to run out. Therefore, it is possible that the batteries will be completely dead again if you let them sit long enough without charging them. Most lithium-ion batteries lose about five percent of their charge per month, while lead-acid batteries can lose up to 30 percent of their charge over the same period of time.
Compared to lead-acid batteries of the past, lithium-ion batteries are truly superior in every way. However, if you can avoid doing it repeatedly, you'll significantly increase battery life. For example, batteries stored in high-humidity environments will have a shorter lifespan than those stored in low-humidity environments.
