UPS
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isn't it better to buy ready made solution ? e.g. http://www.powerwalker.com/index.php?page=select&lang=en&cat=dc
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isn't it better to buy ready made solution ? e.g. http://www.powerwalker.com/index.php?page=select&lang=en&cat=dc
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haha :) yeah, totally agree :P
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No DIY, no fun ! :wink:
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I didn't read all the comments, so forgive me if this was mentioned. What if you just used an SLA or AGM battery and connected a battery tender to it. The battery tender should keep the battery topped off without over charging it, and I would think have enough power to power the PI also. Then you are converting 220 down to 12, and if the power goes down, the battery tender will just shut off and the battery would take over. No extra loss in converting 12 to 220 and back to12 again.
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Guys,
One last question :
Can i draw current from the charger to power box and RPi while it is charging the home-made UPS ?
I might be ordering this in case it is possible:
@ben999 The highest current draw from the list of Pi models is 2.5A on the model 3B (https://www.raspberrypi.org/help/faqs/#powerReqs). If you have a power supply slightly larger than whatever model you are running, you should be good. you just need to be able to supply enough so that the PI has enough to run whatever it is doing and some for charging.
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