What you will learn
How much backup capacity your home needs, what loads to keep off the battery, and when a portable unit is not enough.
Common questions
- How long will a battery run my refrigerator and Wi-Fi?
- Can a battery run central air conditioning?
- Do I need a critical-load panel?
Related calculators
Tools for this hub
Articles
Initial content in this topic
How to Size Backup Power for a Real Home
Start with the appliances you actually need during an outage, then translate that list into battery capacity and inverter size.
9 min readHow Long Can a Home Battery Run Your Essentials?
A practical guide to usable capacity, steady loads, surge loads, and why comfort appliances change the math.
8 min readPortable Power Station vs Installed Home Battery
Portable units are flexible and fast to buy. Installed batteries are cleaner for circuits, automation, solar charging, and longer outages.
8 min readWhat Is a Critical-Load Panel?
A critical-load panel keeps backup power focused on the circuits that matter most instead of trying to run the entire home.
7 min read