<p>Lithium ion (Li-ion) Button battery high energy density, and the voltage is 3.7 V. </p><p></p><p>Key Features: </p><p>J</p><p>1) High operation voltage. </p><p>2) Wide operation temperature range: -20℃~+60℃. </p><p>3) Non-magnetic stainless steel case, hermetically sealed. </p><p>4) No leakage problem. </p><p></p><p>Specification: </p><p></p><p>Model: LIR2032</p><p>Size: D20x H3.2 mm</p><p>Nominal Voltage: 3.7 V</p><p>Nominal Capacity: 45 mAh</p><p>Weight: 2.6 g</p><p></p><p></p><p>Application: </p><p></p><p>Bluetooth earphone, flashlight, watches, car key remotes, remote controls, toys and so on.</p>