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Battery backup air pump and usb solar panel


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After night, I can said this totally work. I checked around 4 am in the morning and it was still running. And as of 10 am, the battery is full again. Disclaimer: I am in Souther California so we get sun more than most. The only weird thing. The aeration seems to be a little bit weaker at night. I am not sure if had to do with it running on battery or atmospheric pressure at night (outdoor). But it was definitely still running. Hopefully, this will continue long term.

Edited by rgb_aquarium
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