Ofeely 3.7V 500mah 303450 Lithium Polymer Li-Po Rechargeable DIY Battery For Mp3 MP4 MP5 GPS PSP Vedio Game toys Go to amazon.com Related posts Best 3.7v 500mah 303450 for 2022 FeatureBuilt-in protection circuit PCM for prevent over charging or over dischargingSize: 3 mm(H)*34 mm(W)*50 mm(L)Rating: DC3.7V 500mAh DescriptionPackage include:1 x 3.7v 500mAh 303450 lithium battery.