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I'm talking about outputs which we use to charge our devices with. Would using USB male to two USB female cord be a bad idea?

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closed as off-topic by Leon Heller, Chris Stratton, laptop2d, RoyC, Dmitry Grigoryev Apr 3 '18 at 11:55

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions on the use of electronic devices are off-topic as this site is intended specifically for questions on electronics design." – Leon Heller, Chris Stratton, laptop2d, RoyC, Dmitry Grigoryev
If this question can be reworded to fit the rules in the help center, please edit the question.

  • \$\begingroup\$ First ask yourself if the power bank is capable of supplying enough current to power your two devices. Often are designed to supply 2A from a single USB port. If your two devices require a total of less than 2A (you should check that figure on your powerbank), than you probably can split it, connecting the data lines only to one device or shorting them at the powerbank, and not connecting the lines to any device. \$\endgroup\$ – valerio_new Apr 2 '18 at 13:17
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Plugging multiple devices into one powerbank for charging may not work because the resistors which set the maximum current draw may conflict with each other. It (probably) won't hurt anything to try.

You could try a USB hub as an alternative, but it will waste some power on its own.

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Normally is it a bad idea to use a splitter cable on real USB devices, as the data pins would conflict. If you are using this for power only devices, ones that do not connect the data pins, then yes, a male to two female cable would work. If you are connecting two phones, then no.

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