Hi @dhavie Like we stated in the other post, the Lithium Battery that is inside the MF3 is not the traditional Lithium Batteries that everybody uses. The kind we are using was newly introduced to the dash cam market called Lithium Cobalt Oxide Batteries. Lithium cobalt oxide batteries are safer than traditional lithium batteries. It's physical characteristics are very close to supercapacitors. The working temperature can go as low as -30°C and as high as 75°C. It is not to be used as a battery to keep on recording after the power recourse has been disconnected. It is to be used only for saving last files so the power will only be sufficient to last for a few seconds.