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Review on HiLetgo LCD USB Current Voltage Doctor Charger Capacity Tester Meter Power Bank: Optimize Your Device Charging Experience by Joe Griggs

Revainrating 5 out of 5

Great tool for testing USB hardware

This little USB tester is crazy value. I use it to test backup batteries and small USB solar arrays. It has already paid for itself as I proved that the battery was not of the advertised capacity and got a refund from the seller. This particular battery was sold at 20,000mAh, but it was actually 8,000 and at 5V only about 5,600mAh could be used.

Pros
  • One year trial
Cons
  • Hard to tell