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I'm looking for a way to prevent my phone from completely charging every time it is connected to my computer. I want to reduce the battery's capacity loss, as it is non-replaceable, and it seems to me that keeping the maximum charge at around 50% to 60% would be ideal. This chart, from this site, suggests that the benefit would be significant.

Capacity at    Discharge
full charge    cycles

100%           300 – 500
90%            600 – 1,000
70%            1,200 – 2,000
50%            2,400 – 4,000
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1  
Surely you'll be charging it more often if you don't charge it fully? – Alex Sep 26 '12 at 20:11
    
I charge when I get the chance, and my currently battery never drops below 60%. – Zong Zheng Li Sep 26 '12 at 20:34
2  
That table refers to storage, not use; you may want Table 4 instead. – Reid Sep 27 '12 at 18:13
    
Thanks for the suggestion. Table 4 actually communicates my point better. – Zong Zheng Li Sep 27 '12 at 20:46

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