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A laptop powerbank cost about as much as those and will run enough lighting to read for days. Lower cost than that, there are C-grade prismatic cells. Usb/12V
by Schroedingersat 3y ago
A laptop powerbank cost about as much as those and will run enough lighting to read for days.
Lower cost than that, there are C-grade prismatic cells. Usb/12V adapters exist for a single cell as well, although i'm not sure if they are in that form factor.