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It uses a 6700 mAh lithium-ion battery and the unit is rated to work in the 14° – 113° F temperature range. One review mentions the battery can power it up to 2 months. So, in cold weather YMMV (your mileage may vary).
Sorry, there was a problem. Please try again later.Mine only lasts about 20 hours once the power fails. I would not buy this product unless you have hard wired product. Otherwise you will be charging it almost every day.
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