Battery Size Calculator for Your Inverter System: A Step-by-Step Guide Contact online >>
Battery Size Calculator for Your Inverter System: A Step-by-Step Guide
Selecting the perfect battery size for your inverter system is important for guaranteeing an effective and reliable power supply. A small battery may leave you in the dark during power outages, while an oversized one can be a waste of money. To help you find the perfect match, here''s a step-by-step guide to calculate battery size based on your power needs and inverter specifications.
1.1. Calculate Your Daily Power Consumption
Start by assessing your daily power consumption which helps to calculate battery size for inverter. Make a list of all the appliances and devices you want to run on your inverter system. For each item, note the power rating (in watts) and how long you use it each day.
LED Light Bulb: 10 watts, used for 5 hours/day
Refrigerator: 150 watts, used for 24 hours/day
Television: 100 watts, used for 3 hours/day
To find the daily consumption for each device, use the formula:
Daily Consumption (Wh)=Power (W)×Usage Time (hours)
Refrigerator: 150 W×24 hours=3600 Wh
Television: 100 W×3 hours=300 Wh
Add these values to find your total daily power consumption:
1.2. Determine the Battery Backup Duration
2.1. Convert Daily Consumption to Battery Capacity
To ensure your battery can handle your power needs, you need to convert your daily consumption into battery capacity. You''ll use ampere-hours (Ah) for this calculation. First, determine your battery voltage, which is typically 12V, 24V, or 48V.
Required Battery Capacity (Ah)= Total Daily Consumption (Wh)/ Battery Voltage (V)×Depth of Discharge (DoD)
Depth of Discharge (DoD): This is the percentage of the battery’s total capacity that can be used. For lead-acid batteries, it''s usually around 50%, while lithium-ion batteries can often be discharged up to 80%.
Based on your requirements, choose between lead-acid, gel, or lithium-ion batteries. Lithium-ion batteries are more expensive and offer higher efficiency and longer lifespans.
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