Extra power banks extend the heat in your Happyhot heated socks - and can charge your phone
The package includes two 2400 mAh power banks. They not only extend the heating time of the socks but can also charge your phone if needed.
With an extra set of power banks, you do not have to wait while empty batteries recharge. You can simply insert the spare pair right away. With the additional power banks, you can enjoy longer trips in nature without worrying about running out of battery.
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