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Nest does have an internal battery than can be charge via a USB port if you ever need to. I bought my Nest used off Craigslist (substantial savings) and have ne
by gallamine 13y ago
Nest does have an internal battery than can be charge via a USB port if you ever need to. I bought my Nest used off Craigslist (substantial savings) and have never had any low battery issues. It's bus powered, but the battery smooths over power disruptions.