I want to power an Arduino project for several weeks on a remote location. At the location, data is gathered and sent over the internet. The project runs on 5V and draws 200mAh max. I need a power source that runs on its own, without cables.
To do so, I was looking into big batteries. My idea was to use a battery like this. It has a capacity of 50Ah and an output of 6V which I can downstep with a voltage regulator.
I have several questions:
- How safe is this battery? Can directly touching the contacts cause harm?
- Can my project draw 200mAh or will the battery push out more due to its high capacity?
- And if it's dangerous, how can I protect myself and my system?
Hope my information in this post is sufficient, thanks for any responses.