My cell phone battery used to work great. A single charge would last about 3 days because I used it so seldom. But, for 3 months it sat unused in my room because I was using another phone with work.
Now, I'm back to my old phone, and a full charge only goes half a day, and I'm not even using it that often.
Did letting it sit for 3 months cause it to go bad, or did something else happen?
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