3 Wire 3570100 3.7v 4000mah Polymer Lithium Ion Battery Li-ion Battery For Tablet Pc 7 Inch 8 Inch 9inch - Digital Batteries - AliExpress
Synergy Digital Wifi Hotspot Battery, Works with ZTE MF279 Wifi Hotspot, (Li -Ion, 3.7V, 3400 mAh) Ultra High Capacity, Compatible with NET10 LI3730T42P3h6544A2 Battery - Walmart.com