Defective '5,000,000mAh' power bank
It arrived dead, but in a highly dangerous state and could have burst into flames at any moment.
If you're in the business of repairing PCs, smartphones, or tablets, then you need the tools to help you get the job done in a fast, efficient, and safe way. Updated with reader suggestions July 2017.
Want to test the power coming out of a USB port? Want to know how much capacity a portable battery pack has? Want to know how much power a device is pulling when it's on charge? You need a DROK Pocket Digital Multimeter USB 3.0 hub. This device, which is no bigger than a USB flash drive, gives you all the information you need.
For around $30, this simple device can replace a lot of complex test equipment.
Caption by: Adrian Kingsley-Hughes
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