No Standalone lithium batteries are sold with the product. Small uninterruptible power supply for power outage, compatible with router, modem,
Shanqiu Mini UPS Battery Backup Uninterruptible Power Supply for Router, Modem, Security Camera, Input DC or USB Output USB 5V DC 5V 9V 12V 2A (37Wh)
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feature: *Equipped with battery protection board: over-current protection, over-voltage protection, over-charge protection, and over-discharge
12V-2A Uninterruptible Power Supply Mini UPS Battery Backup Universal Interface
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