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I am very new to DIY and electronics stuff, so please excuse myself having little knowledge about this stuff.

Here is what I am trying to do: enter image description here

Assuming I have both things (The Converter with USB output and the mini-USB input charger) connected to the battery, and only one thing on at a time, would it short circuit either of the modules, or the battery? Also, can I even have the charger and discharger connected together and to the battery without causing a short circuit?

Nick Alexeev
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joshglen
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  • related (possibly duplicate): http://electronics.stackexchange.com/questions/170857/how-can-the-sparkfun-lipo-usb-charger-power-other-devices-at-the-same-time-as-ch – Nick Alexeev May 17 '15 at 16:58

2 Answers2

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It is very common to have a charging source and a load connected to a battery at the same time, so that it looks like you are charging and discharging the battery simultaneously.

What actually happens is that, if the charger can supply more current than the load demands, most current will go directly from charger to load, with any excess current going to charge the battery.

If the load demands more current than the charger can supply, the battery will supply the additional currrent the load requires. If this condition persists, the battery will become discharged.

Peter Bennett
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Yes. It would work but I would approach with caution. I charge my phone all the time while I'm using it.

Samee87
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