[Note]- 3.7v lipo battery connector type is JST PH2.0MM !!!! - Please make sure the connector type and battery size match your device before purchase. [Connector Specifications]-3.7v battery Connector Type: PH 2.0mm;; Cable Length: 5cm / 2"; Please check the battery polarity before installation, if the connector polarity is not matched with your device, it will damage the device or new battery. [Battery Specifications] - 654065 li-ion battery Size: 6.5 x 40 x 65mm / 0.25" x 1.57" x 2.56" (H*W*L), Voltage: 3.7 volts, Maximum Charging Voltage 4.25v; Capacity: 2000mAh; Material: Lithium Polymer. Net weight: 38g. [Applications]- 3.7v lithiun Polymer battery is suitable for MP3/MP4, Bluetooth wireless headset, GPS, baby monitor, game console, skype, smart watch, surveillance device, POS, car recorder, mobile power, Bluetooth speaker, VR glasses, beauty device, pet tracker, ring visual doorbell, etc. Please use the battery correctly: 3.7v lithium batteries can not be used for high-current power devices, such as drones, miniature remote control helicopters, model airplanes, electric toys, etc. Qimoo 654065 3.7V Lipo Battery 2000mAh 654065 Rechargeable Lithium Polymer