The last few batteries I bought for my phones were terrible. They never lasted very long on a full charge. Sometimes they went from 80% to dead in 10 minutes. These little ones are great. I don't want to give the actual hours and minutes as there are many factors that affect this performance and they will all be different. Just saying that I got dizzy when I put the phone on speakerphone (I was on standby) and it sat there for a while before losing a charge bar. Very happy. I highly recommend.
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