how to test the power output of a usb cable?

I have a usb powered cup warmer. It has a car adaptor. I would like to know if its possible to use it to charge my cellphone in the car, instead of buying a car adaptor.

Answer:

The max power you can draw from a USB port is 2.5W (500 mA at 5V)

Share to:

Hot Question

Hot Product

: Vacuum Bagging Film-vacuum infusion process Inquire Now

: TPO/PVC High Polymer Waterproofing Membrane Inquire Now

: Polypropylene Non-woven Geotextile or Non Woven Fabric Inquire Now

: Hot Rolled Steel Coils with Standard ASTM Inquire Now

Hot Tag

Roof Heating Cable Aluminum Electrical Wiring Aluminum Foil Conductor All Clad D5 Stainless Steel Stainless Steel All Clad Clad Stainless Steel All Clad D3 Stainless Steel Tinplate Submarine Compressed Aluminum Foil Aluminum Foil As Conductor 1kv Solar Inverter Power Cable Construction Pvc Foam Core Vs Solid Core Power Cord Plug Replacement Power Transmission Equipment 55 Amp Power Converter For Rv Generation Of Electrical Power Warm Tiles Floor Heat Warm Floors Radiant Heating Warm Feet Floor Heating

how to test the power output of a usb cable?

Answer:

Other related question

Hot Question

Hot Product

Hot Tag