How Long Do Unused Lithium Batteries Last. Charge the batteries after looking at the charge status or dispose of the battery carefully. This is an ideal storage condition that is if we charge the battery until it reaches 40 of its charge we disconnect and store it it.
2 Your battery will drain faster when its connected to your vehicle than when its disconnected. The batteries self-discharge as they sit and it affects their capacity. A typical LED uses about 20mA and the capacity of a CR2032 Coin Cell is 200mAh.
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An unused new battery will have a much shorter life span if its not recharged often. Charge the batteries after looking at the charge status or dispose of the battery carefully. Lithium Ion batteries suffer from aging even when they are not being used. Sometimes one of these batteries can last up to 20 years.
