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Laptop battery question

By Denman007
Feb 18, 2007
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  1. Will a laptop battery lose capacity over time if it is NOT used.

    I can get an extra 9 cell battery with a new laptop for $59. They cost $160 when purchased separately.

    I wanted to store the extra one and use it only when the orig one goes bad - maybe 2 yrs?

    Thanks.
  2. Nodsu

    Nodsu TS Rookie Posts: 9,431

    Yes a Li-ion battery loses some 20% of its capacity per year (depends on storage temperature).

    There's absolutely no point in buying the battery in advance. Over time, they will come cheaper and with more capacity. Just buy a new one when you need it.
  3. Tedster

    Tedster Techspot old timer..... Posts: 10,074   +13

    In short, yes, but the rate depends on the type of battery.
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