Advanced Battery Backup Calculator

Advance Battery Backup Calculator +IEEE485

Calculate optimal battery configuration for your power backup needs

Input Parameters

Battery Data Excel File
No file selected
? Excel File Format Requirements:
1. Each sheet in workbook will be processed
2. First row: Backup times in minutes
3. First column: Battery capacities in Ah
4. Remaining cells: Watt values
5. No empty rows or columns

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Select ECV Sheet
? Select which sheet from the Excel file to use for calculations. Format: WorkbookName-SheetName

Example: BatteryData-12VSheet
Load
? Where to find KVA/KW value:
This is typically listed on the equipment nameplate.

Conversion Formulas:
KW = Watts/1000
KVA = VA/1000
Watts Type
? Watts Type Explanation:
- Watts Per Battery: Standard calculation using total battery watts
- Watts Per Cell: Calculation based on individual cell watts
Power Factor (PF)
Inverter Efficiency (EFF)
? Where to find EF value:
This is typically listed in UPS/inverter specifications.

Standard values:
Single Phase Inverter: 85%
Three Phase Inverter: 90%

Where to find PF value:
This may be listed on equipment nameplates or specifications.

Standard values:
Single Phase Load: 0.8
Three Phase Load: 0.95
Aging Factor (AF)
Design Margin (DM)
Temperature Coefficient (TC)
? Aging Factor (AF)
Factor to account for battery capacity degradation over time.

Design Margin (DM)
Safety margin for design uncertainties.

Temperature Coefficient (TC)
Factor to account for temperature effects on battery performance.
12V Batteries/String
Max Strings
? MaxStrings:
Mention the number of battery strings you want in the battery calculation.

What is a Battery String?
A battery string is a set of batteries connected in series to achieve the required voltage.

Where to find this value:
Check your UPS/inverter manual or specifications.
Min - Max Battery (Ah)
? Minimum and maximum battery capacity in Amp-hours (Ah) to consider in the calculation.
Backup Time (Minutes)
? Standard backup times:
- 15 minutes: Basic computer backup
- 30 minutes: Modern computer/office equipment
- 60 minutes: Critical servers
- 120 minutes: Sump pumps, medical equipment
- 240 minutes: Whole house backup


Report Information

Customer Name*
Project Name
Application
Temperature
Note
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Calculation Results

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Fill the parameters
Press "Calculate Battery Size" Button
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