- Router battery, battery for Huawei router - HB4F1 - Li-polymer battery - Limited charge voltage: 4.2V Router battery, battery for Huawei router - HB4F1Manufacturer/OEM/ODMWelcome to our factory-3.7V 1500mAH (5.6Wh)/GB/T18287-2000-Li-polymer battery-Limited charge voltage: 4.2V Stock already/Ready for delivery/Self-collect immediately!!! HB4F1, Router battery, battery for Huawei router