Item specs Part No:BP1672 Capacity:2300mAh/8.51wh Voltage:3.7V Type:Polymer Packaging:1 x battery?1x tools Compatible with Moxee Mifi Hotspot K779HSDL Notice before purchase 1. Be carefully check the model number of your device to see if this battery is compatible with your device. 2. A new Li-ion battery will achieve its best performance after 2 or 3 complete cycles of charge & discharge. 3. When you install it, be sure the connector has been properly connected to your device. 4. Do not use low quality third-party adapter charger to charge your device, that will shorten the battery's life. Contact us If you have any questions or any issues when using our product, please send us a message, we will answer you within 24 hrs. Thank you for your time.