Long-term Expectations for the Non-Removable Battery

Discussion in 'Droid RAZR MAXX' started by FlatLineD, Jan 30, 2012.

  1. FlatLineD
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    FlatLineD New Member

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    So, as the positive reviews of the Maxx's "ridiculous" battery life roll in, I believe a legitimate concern should be addressed regarding its projected capacity as the battery degrades over time. Given that many of us will have this phone for 1-2 years, to what extent should we expect a significant decrease in our ability to use this phone freely as we near the end of the contract?

    With proper care, Li-ion batteries (and Li-ion polymer) have a lifespan of around 2-3 years or ~350 (full) cycles. I believe that "life" is considered expired when the battery reaches ~70% of its original capacity. Thus, with a 3,300 mAh battery, a basic number crunch would imply that at the end of a standard 2-year contrast, the Maxx's capacity would be only ~2,310 mAh. That is a serious drop, especially when phones with removable batteries have the option of switching packs to always maintain a large capacity. (g-nex extended + stock = ~3900 mAh, which can be replaced to prevent deterioration)

    Can any battery experts/mathematicians weigh in on what the Maxx's now-excellent battery life might look like 2 years down the road? Or does anyone have useful tips for prolonging the life of the non-removable battery?

    Many thanks. (for reference, read up here, or just google "lithium ion battery care": How to Prolong Lithium-based Batteries - Battery University or http://www.newark.com/pdfs/techarticles/tektronix/LIBMG.pdf)
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