5.0
  • 5 star 63 ( 85% )
  • 4 star 11 ( 15% )
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  • Good little tool

    posted by marki555 on 11/26/2013
    6

    Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

    Pros:

    You can measure both voltage and current without any special connections. The display is good (4x red 7-segment led digits) and alternates between volts and amperes (current).

    Cons:

    Under full load (1.05 A) seems to periodically lose the power, so keeps resetting and displaying only the voltage (but does not affect the connected device).

    OtherThoughts:

    This measures the V/A on the PC/charger end, not at the device end. When using cheap (thin) cables with high currents (HDD, device charging), the voltage drop over that cable will lower the usable voltage at device end (sometimes by more than 0.5 V). Therefore it would be better if this could have micro-B connector, or just use it with quality thick short cables (for example that 10cm charging cable Nokia gives with their phones).

    Bottomline:

    Good device which allows you to see the quality of your charger - you can see the effect of increasing current has on voltage. Ideally the voltage should be always 5.00 V, but usually it will be lower and lower with higher currents.

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