2-Pack 3.7V 400mAh 304040 Li-Polymer Battery with 2.0mm Connector

Set of two rechargeable 3.7V 400mAh Li-ion polymer (model 304040) cells, each fitted with a 2.0mm connector. These compact polymer-ion batteries deliver a nominal 3.7V and 400mAh capacity per cell and are supplied as a 2-piece pack for replacements or DIY projects. The included 2.0mm connector allows for simple plug-in installation, making them suitable for small portable electronics and repair applications.