Solar Battery Backup Calculator
List the appliances you run on solar, pick your battery system voltage and battery type, and get your daily energy use, the required battery capacity in amp-hours, and a suggested battery setup.
Your Appliances
| Appliance | Watts | Qty | Hours / Day |
|---|
Depth of discharge: the safe usable share of the battery.
Days of backup without sun.
Your Result
Total Daily Energy
0 Wh
Required Battery Capacity
0 Ah
Usable Energy Stored
0 Wh
Suggested setup: -
How to use
- Add each appliance with its watts, quantity and how many hours per day it runs.
- Select your battery system voltage (12V, 24V or 48V) and battery type.
- Set days of autonomy if you want backup for cloudy days without charging.
- Click Calculate Battery Size to see daily watt-hours, required amp-hours and a suggested battery configuration.