The range at polar extremes allows for –40☏ to 122☏ (–40☌ to 50☌). Storage recommendation for most batteries is in an ambient temperature of around 59☏ (15☌) and low humidity. Another factor that is widely shared is battery contact with other materials. Shelf life is the length of time your disposable battery will retain its charge unused, or in the case of rechargeable batteries, how long before it will require a charge or is considered spent.Īpart from capacity during storage, the ideal, ambient storage temperatures is the same for battery chemistries across the board with some nuances at the extreme ranges. Where self-discharge focusses on rate of speed, shelf life is concerned with duration. This term is closely connected with self-discharge. All batteries self-discharge over time even when idle.īattery shelf life. Self-discharge denotes the rate at which the battery self-depletes in idle storage. Discharge occurs at variable rates based on chemistry, brand, storage environment, temperature. As soon as a battery is manufactured, it immediately begins to lose its charge-it discharges its energy. Most recognized manufacturers set it off from surrounding text with distinguishing features such as boxing, color, or separation.īattery self-discharge rate. You can find your battery’s expected date of expiration on the packaging or the battery. As a rule of thumb, when your battery’s total self-discharge is over 20 percent, you can consider the battery expired. An expired battery denotes the inability of its manufacturer to guarantee its full charge upon a certain date. Expiration as applied to energy storage devices does not mean the same as its application to food items. We will also take a look at the effects of capacity loss and regulations for shipping and travel.įirst, it is important to clarify the meaning of key terms:īattery expiration. In this post we will discuss the storage of nickel-based (i.e., Ni-MH and Ni-CD), lithium, alkaline, and lead acid batteries. While all batteries share similarities in the storage process, key differences and nuances exist that are chemistry specific.
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