This battery does the job in the older phone for which it was designed. No complaints here.Unless you want to count the little incident where the phone had a nice bath in the washing machine because SOMEONE forgot to empty his pockets. A bath that killed the first battery, but amazingly, not the phone. Hence the introduction of a new battery, which provided life support for a week. Then Twilight Zone happenings began, leading to a certain phone taking up residence somewhere in the yard, possibly a tree. Amazing the strength of the male arm, especially when flinging items in a fit of pique in pitch-black darkness.But we recovered the battery and it's still good to go. So two thumbs up for the thing!