I'm not really sure how well the batteries work. I read the description &amp; knew I wanted longer-lasting batteries for our phones. But these batteries require a battery cover that is deeper than the one that comes with the phone! So, the batteries don't fit unless you purchase the deeper cover elsewhere. Unless I missed it, this informtion was not provided in the description or technical details.I went to a Verizon store &amp; they sell the batteries complete with the required cover. Also, the cover can be ordered from Motorola.