BATT-CS50 - Li-Ion， 3.7 Volt， 230 mAh， Ultra Hi-Capacity Battery - Replacement Battery for Plantronics 64327-01，65358-01 Wireless Headset Batteries<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="aok-hidden" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Replacement Battery for Plantronics 64327-01，65358-01 Wireless Headset - Li-ion， 3.7 Volt， 230 mAh. </span></li><li><span class="a-list-item"> 100% compatible with your OEM battery - 3 year warranty. </span></li><li><span class="a-list-item"> Made with high quality Japanese cells. </span></li><li><span class="a-list-item"> Synergy Digital® is a Registered Trademark </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51lFkkQUSVL.jpg" noproxy>