When choosing a powerbank backpack, you should look for the following key features to ensure convenience, efficiency, and safety:
1. Battery Capacity & Output
mAh Rating: Look for a powerbank with at least 10,000mAh for daily use or 20,000mAh+ for extended travel.
Output Ports: Multiple USB ports (USB-A, USB-C) for charging multiple devices simultaneously.
Fast Charging:...
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