Battery Capacity Formula:
From: | To: |
The LED Inverter Battery Calculator estimates the required battery capacity (in ampere-hours) to power LED lights for a specified duration using an inverter. It helps in designing off-grid lighting systems.
The calculator uses the following equation:
Where:
Explanation: The equation calculates the battery capacity needed by considering the total energy consumption (watt-hours) and dividing by the system voltage to get ampere-hours.
Details: Proper battery sizing is crucial for ensuring your LED lights will operate for the desired duration without over-discharging the battery, which can reduce battery life.
Tips: Enter the total wattage of all LED lights, the desired operating time in hours, and the inverter/battery system voltage (typically 12V, 24V, or 48V). All values must be positive numbers.
Q1: Should I add a safety margin to the calculated Ah?
A: Yes, it's recommended to add 20-30% to account for inefficiencies and battery aging.
Q2: What's the typical inverter voltage?
A: Common inverter voltages are 12V (small systems), 24V (medium), and 48V (large systems).
Q3: Does this account for inverter efficiency?
A: No, this is a basic calculation. For more accuracy, divide the result by your inverter's efficiency (typically 0.85-0.95).
Q4: Can I use this for other DC loads?
A: Yes, you can use it for any DC load by replacing the LED wattage with your load's wattage.
Q5: How does battery type affect this calculation?
A: Lead-acid batteries shouldn't be discharged below 50% regularly, so you might need double the calculated capacity. Lithium batteries can typically discharge deeper (80-90%).