Hi, It's always a bad idea to to use the usb port of a Rpi to power another device, especially when it draws a lot of current.
Le samedi 12 septembre 2015, 14:11:58 Ed Kapitein a écrit : > Hi, > i want to use a raspberry pi to charge the BQ 4.5, without a (powered) hub. > The BQ is not charging when i plug it into the pi, and the pi never > enumerates the BQ on its usb bus. > > Is there a way to influence the power negotiation between the pi and the BQ? > For example let the BQ start at 100mA and ramp it up to whatever the > powersource can deliver. > > Kind regards, > Ed
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