How long will a 10kWh battery last?
Check refrigerator, WiFi, lights, and basic home backup loads.
View Guide
Runtime Guides
Read battery runtime guides for 5kWh, 10kWh, 20kWh, 50kWh, home backup, commercial loads, and selected appliances.
Start With Your Question
How long will a 20kWh battery run a house?
Check home backup runtime for essential and selected household loads.
View Guide
How long can a battery run a refrigerator?
Check refrigerator power, compressor cycling, usable battery capacity, and inverter efficiency.
View Guide
How long will a 50kWh battery last?
Check commercial backup time for refrigeration, lighting, office loads, and selected equipment.
View Guide
What battery size do I need for my target runtime?
Enter your loads and required backup time to compare battery sizes.
Use Battery Size CalculatorRuntime Guide Topics
How Long Will a 5kWh Battery Last?
See how long a 5kWh battery lasts with refrigerator, WiFi, lights, and other basic backup loads.
View Guide
How Long Will a 10kWh Battery Last?
Check 10kWh battery runtime for home backup, refrigerator, WiFi, lighting, and small everyday loads.
View Guide
How Long Will a 20kWh Battery Last?
See how long a 20kWh battery can support home backup, freezer loads, and longer outage protection.
View Guide
How Long Will a 50kWh Battery Last?
Check 50kWh backup time for refrigeration, office loads, small business backup, and selected commercial equipment.
View Guide
How Long Can a Battery Run a House?
Compare home backup runtime by battery size, household loads, inverter efficiency, and usable battery capacity.
View Guide
How Long Can a Battery Run Commercial Loads?
Check how long it lasts for POS, refrigeration, lighting, office equipment, pumps, and other business loads.
View GuideFeatured Guides
How Long Will a 10kWh Battery Last?
Covers refrigerator, WiFi, lights, and home backup. Focus: 10kWh battery runtime.
Read Guide
How Long Will a 20kWh Battery Run a House?
Covers household loads, backup time, and usable battery capacity. Focus: home backup runtime.
Read Guide
How Long Can a Battery Run a Refrigerator?
Covers compressor cycling, starting current, and inverter efficiency. Focus: refrigerator backup time.
Read Guide
50kWh Battery Runtime for Commercial Loads
Covers refrigeration, POS, lighting, and office loads. Focus: commercial runtime estimate.
Read GuideRelated Tools & Products
Backup Runtime Calculator
Enter battery capacity and total load to estimate battery backup runtime.
Use Calculator
Battery Size Calculator
Enter your loads and target backup time to check the battery capacity you need.
Use Calculator
FAQ
Why is actual battery runtime shorter than the guide?
The runtime estimate changes with usable battery capacity, inverter efficiency, load changes, temperature, and starting current.
Which loads reduce backup time the fastest?
Air conditioners, pumps, compressors, refrigeration equipment, heaters, and other high-power loads can reduce backup time quickly.
Can I calculate battery runtime using battery capacity divided by load power?
It gives a basic estimate, but usable battery capacity, inverter efficiency, and changing loads must also be considered.
Do I need to include inverter efficiency?
Yes. AC loads run through the inverter, so inverter efficiency affects battery backup runtime.
Does starting current affect battery runtime?
Yes. Refrigerators, freezers, pumps, and compressors can draw higher power during startup.
Should I choose a larger battery than the calculated size?
Choose the battery from your real load list, target backup time, usable battery capacity, inverter limit, and future loads.