跳转到主内容

Larger version of the Nintendo DSi, released March 2010 in North America. Most repairs are accomplished with only a screwdriver and prying tools.

155 个问题 查看全部

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.

回答此问题 我也有这个问题

这是一个好问题吗?

得分 0
添加一条评论

1个答案

最有帮助的答案

Hello,

Yes, the lithium batteries can be not rechargeable if the become entierely discharged, you can see here a chart of the batteries technology and their self discharge rate

Comparison of commercial battery types - Wikipedia

Hope that answered your question

这个答案有帮助吗?

得分 1

3条评论:

Thanks for replying. Looking at the linked page, I see that the battery discharge rate and shelf life are not given on that chart for Li-ion (lithium cobalt oxide) batteries. I have seen in my own experience that cell phones, portable game systems, etc. which had not been used for as much as 10-15 years were still fully responsive when dug out of a storage bin/etc.

My curiosity is thus: Do you know if there are resources that specify further how Li-ion batteries discharge, and at what rate, and how far they must go before damage is done, whether minor or major?

Also, it sounds like from your statement about discharge, that you should recharge li-ion batteries on occasion to prevent damage. Is this true, and if so, do you know what the approximate interval is for best protection?

Finally, is it better to store the battery outside of the device, or installed inside of it?

Thank you for reading.

完成的

@kfofi Hello, like this website mention :

"This is due to the fact that Li-ion cells have an inherent self-discharge rate independent of any circuit load. This self-discharge rate is QUITE LOW at ROOM TEMPERATURE around 20-25°C or less. Values of around 2% PER MONTH are typical. However, this rate can more than double when cells are exposed to high temperatures."

https://siliconlightworks.com/li-ion-vol....

完成的

Thank you for that follow-up. It is greatly appreciated! Based on the calculation fo an "optimal" 2% loss of voltage per month, one could reason that any battery which is stored, and goes untouched, for more than 50 months, or 4 years and 8 weeks, stands at serious risk of being damaged and/or permanently unusable, is that right?

My curiosity from this, as well as the comments on that page about how the batteries break down (and then how the breakdown is completed when the damaged battery is then recharged): is it possible then to evaluate the amount of damage done to a battery by improper storage? I would guess that you use a multimeter to check its voltage output at the two battery poles, but I am not certain. I'm guessing the only way to evaluate the amount of damage done is to have a perfect battery and know it's expected output, and compare a fully charged, suspect battery, and check its output. Not sure exactly how you would do that however. Any insights would be greatly appreciated.

完成的

添加一条评论

添加你的答案

chrisdeliz 将永远感激不已
浏览统计数据:

过去 24 小时: 0

过去 7 天: 0

过去 30 天: 0

总计 55