XT30 Power Bank

I designed this because I hate nothing more than discharging batteries. Sometimes you go out, reach the spot, and it starts raining. So you go back home and start discharging your batteries, effectively converting electricity into heat. With this thing you can simply discharge your batteries into devices that can be charged via USB. The components are super cheap.

This is a remix of one of my previous designs. I improved the following things:
* Inset the buzzer pins
* Minimized height
* Optimized for XT30 plug

2-6S LiPo to 5V USB power adapter. Ideal for all RC enthusiasts who also need 5V on the go - and you know you need it (eg. to charge your phone, smaller flight packs, your transmitter or power your goggles).

You will need the following parts:
* [5V, 3A USB DC/DC converter](https://aliexpress.com/item/4000511498136.html)
* [Battery Buzzer](https://goo.gl/nv0tjx)
* [XT30 connector](https://www.banggood.com/10-Pairs-XT30-2mm-Golden-Male-Female-Plug-Interface-Connector