Product Details

Model No
Selling Unit EACH
Categories Battery Chargers / Analysers / Testers
DC Power Data Loggers & Displays
Power Acessories, Adaptors and Adaptor Leads
Xtar Accessories
LED Torch Parts & Accessories
Description XTAR VI01 USB voltage and current reader

Insert the XTAR VI01 into a USB outlet to get a digital readout measuring the output voltage and output current from the USB output of a power source such as a powerbank or laptop.

The VI01 is useful in measuring the remaining power of a powerbank, or determining which USB powered device is drawing the most energy from a laptop's battery. This knowledge can help a user determine the best way to conserve laptop battery power when on the move.

How to use the VI01:

  1. Insert the VI01 USB end (marked 'IN') into the USB port of the power source. VI01 will display the output voltage and output current at no load.
  2. Connect a USB powered device to the VI01's USB port (marked 'OUT'). VI01 will display the output voltage and output current with load.


  • Sensitivity ±0.02V, ±0.02A
  • Working voltage: 4.5-6.0V
  • Test current: 0-2.5A

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