PaiduSolar Portable Energy Storage Power Supply Outdoor High Power 220V Mobile Large-Capacity Computer Charging Treasure Camping Emergency Backup Power

Portable energy storage power supplies are compact and rechargeable devices that store electrical energy for later use.  
They are designed to provide a convenient and portable source of power for various electronic devices, appliances.
When choosing a portable energy storage power supply, consider factors such as capacity, weight, size, number and type of output ports, charging options (AC, DC, solar), and any additional features that may be important to you.