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F21i lives up to its specifications! |
October 22, 2021 |
Reviewer:
Jim from Texas
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I bought the F21i as the LIGHTEST 5000 mAh powerbank that supported BOTH max 18W output AND max 18 input which has been commonly called "fast charging." My F21i weighs 99 g with its battery and lives up to its specs as I personally tested with a USB multimeter and a USB load tester. I will remind readers that the F21i has only a single USB-C port, so one will need adapters for devices that have USB-A and microUSB connectors, but the F21i does the proper handshaking for low-power devices. As a bonus the F21i flawlessly charges with power from a small solar panel even if power cuts out intermittently due to shadows from clouds, trees, and other sun blockers.
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