OUTAGE ATLAS / FIELD NOTES
Backup Power Field Notes
Start with the things you actually need to run. These field notes explain the measurements that make a backup plan useful.
Refrigerator backup: read the yellow label
Translate annual kWh into average energy, then check running and startup watts separately.
Router backup: follow the whole connection
A battery for the Wi-Fi router may leave your modem or ONT without power.
Watts vs. watt-hours: the two numbers on the box
Learn why battery capacity, running output and startup capability solve different problems.