How do I store my extra lithium-ion batteries?
I own a number of handheld game systems, including the DSi XL, for which I have, over the years, purchased a number of extra rechargeable batteries. I bought them because they were going out of stock on the manufacturer website, and I wanted to have extras, as they are proprietary designs (as far as I know) and I didn’t want to risk not having replacements available for purchase. Over the years I have taken comfort in knowing I had a supply of backups for whenever my original batteries failed. Recently, however, I have heard some things that make me concerned about my extra batteries.
There are a variety of ideas I have heard recently that give me concern. I have heard that lithium batteries need to be recharged periodically as they are stored, or that they can develop problems and lose lifespan/fail completely if stored uncharged for long periods of time. Likewise, I have heard that if a device does not have its batteries charged every so often, that the battery can fail (which may account for the pictures I’ve seen of batteries swelling in game systems). I am concerned by these things I have heard and read, but I am having a hard time validating my concerns with real concrete information. Many sources seem to be from web forums or other “hearsay” formats. I am looking for more concrete, trustworthy sources.
Can anyone help me by providing quality information about how to properly store and maintain lithium-ion batteries? What should be done to maximize lifespan and minimize damage? I may have made some mistakes without realizing it already, but I cannot know until I ask. Please help me to know what best to do with this problem. Thank you all for your time.
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