Make large battery last up to 30 hours (switch-mode power supply)

[MeatSpasm]

In this circuit, the large battery discharges for the 10 second duration of the timer. During this time it provides power to the ceiling light, and also charges multiple small batteries. Once the timer runs out, the small batteries take over powering the ceiling light, each activating in turn. They last 8 seconds each. When the final small battery is empty, the timer resets and the cycle starts over. In this manner the large battery is discharging for only a fraction of the time (on a duty cycle) and the system can provide a low power output for much longer; (#small batteries*0.8 + 1)*4hrs

Here is my circuit demonstration with two small batteries which gives a discharge time of (2*0.8 + 1)*4 = 10.4 hours, and a useful power output of 5 power units.

https://files.facepunch.com/forum/upload/388430/7b3e892e-85d7-4ad0-8d10-ea59ffc0607f/Picture1.png

The maximum number of small batteries you could add would be around 8, as the logic overhead means after that you are charging them with less than 10 power and get diminishing returns. 8 small batteries would give a system discharge time of 30 hours.

This circuit isn't currently practical (30/12/2018) because the active small battery cannot cover the total logic overhead of 15. I have therefore cheated and powered the logic on the left (timer and two blockers being used as not/invertor gates) from the windmill. Perhaps the logic power draw can be better optimised, or we await future updates when logic gets a little less power hungry...

Thanks for reading!

[Sosig.exe]

Interesting stuff, would have been nice if you made the wires neat haha.
Not too sure how this is that practical, theres alot Of HQM on that wall there. If you wanna power something constantly you might aswell use a windmill; the higher up it is the more power it outputs

[MeatSpasm]

I was thinking it could be used as a backup to survive a day of raiders who destroy the windmill.

[Sosig.exe]

Hmm true. From where I have had a windmill on a mountain twice on rustafied main no one has tried breaking it. And what would you need power for so desperately to require this circuit? I have currently only used electrics for auto lights and anti door camp defence

[MeatSpasm]

Powering autoturrets once the devs make them electric.

[Sosig.exe]

fair enough, not sure if that is gonna happen at this rate though