🔴 18650 USB Power Bank Inspection and Testing - No.961

18650 Power Bank Inspection and Testing

I take a look at a very cheap 2600mAh USB power bank, I look at its electronic design, load test the power bank, and check the battery capacity claim, the power bank uses a MP3401A IC.

USB Load Tester (25W): https://defs.link/?u=6c7c477

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