Can You Train a Battery?

Can You Train a Battery?

Dec 20, 2007

We saw this question over on Ask MetaFilter, and thought it was a good one to pose--and answer--here at Unplggd:

"My wife has insisted for some time that you can 'train' a battery in order to optimize its performance and lifetime. For example, with a cell phone battery, she says it is best to let the battery run out almost completely before recharging it. (as opposed to plugging it into the charger whenever not using it, which is what I do). Bullfeathers, I say. Sounds like an urban legend. Can any one help? "

The answer is: depends. It's still true that NiCad and NiMH batteries, but most electronics use Lithium batteries these days and then it's not the case. It's also not the case with rechargeable "regular" batteries like Duracell .

Through Ask Metafilter answers, we found two helpful resources for explaining what to do in what case:

  • Battery University has a table that compares the three main types of batteries in all their details

  • Apple has a great page on explaining Life Cycles and charging times--especially why your iPod gets 80% charged in 2 hours, but doesn't get 100% charged for another 2 hours

- Image by AndyArmstrong.

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