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Smart phone batteries


petitepedal
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Li-Ion battery cells (what is in most smartphones) have a recharge capacity of 90% or greater for 300-500 recharges. It drops off sharply after that. In my RC days I used Lipo (lithium polymer) and I had a charging tracker. Would usually switch out after 250 charges since the capability to sustain heavy draw on the battery also dropped off sharply.

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Switch off things that you don't use.  Wifi and GPS are huge power drains.  When not using them, turn them off.  I find that phones are good for 2 years, tops.  Then you need a new one.  Of course Apple has non-replaceable batteries.  Smart.  I am in the market for a phone now since Koda provided me a phone for the past 10 years.  I will have to pay my cell bill for the first time in a while.  But the new place will give me 45 dollars a month towards a phone.  I wonder if I will stray from Apple this time?  Probably not.

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