Walmart is in the thick of its early Black Friday sale that's hosting monumental deals on power tools like portable inverters ... normal $320 price. This emergency backup tool has earned over ...

This can include a home battery system or generator -- if it's used for backup power during disasters and outages, or as an ...

It has a preset emergency power reserve of up to 40% of the storage capacity. The Battery flex DC has an automatically preset solution activated by the installer on the hybrid inverter.