Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Electrical
Battery Backup Time Calculator
Find out how long a battery bank will power your equipment during an outage, given voltage, capacity, and inverter efficiency. Ideal for sizing UPS systems, off-grid setups, and emergency power installations.
Fill in the required fields to see your result.
Electrical
Battery Bank Sizing Calculator
Calculate the total battery bank capacity in amp-hours (Ah) needed for off-grid solar systems or backup power, factoring in autonomy, depth of discharge, and system efficiency losses. Use this when designing or expanding a battery-based energy storage system.
Fill in the required fields to see your result.
Key differences
| Battery Backup Time Calculator | Battery Bank Sizing Calculator | |
|---|---|---|
| Category | Electrical | Electrical |
| Inputs required | 4 | 5 |
| Result | Backup Time (hours) | Required Battery Capacity (Ah) |
| What it does | Find out how long a battery bank will power your equipment during an outage, given voltage, capacity, and inverter efficiency. Ideal for sizing UPS systems, off-grid setups, and emergency power installations. | Calculate the total battery bank capacity in amp-hours (Ah) needed for off-grid solar systems or backup power, factoring in autonomy, depth of discharge, and system efficiency losses. Use this when designing or expanding a battery-based energy storage system. |