11
Calculation Method:
Example:
Load: Lighting 20W + Laptop 100W + Smartphone Charging 6W + Kettle
500W
Runtime: 2 hours
Battery capacity: 330AH
Inverter eciency: 90%
Inverter voltage: 12VDC
Summary:
When using a battery with a capacity of 330AH, the load can be used for around
5.69 hours, with a no-load power consumption of 7.68W.
The above content is for reference only. The actual number and capacity
of batteries required may vary due to factors such as inverter rated power,
load power, battery capacity, and charge-discharge ratio.
In addition, the required capacity of the batteries also depends on whether
the batteries can withstand repeated charge/discharge cycle tests.
Battery Runtime
330*12/(（20+100+6+500）
/90%) ≈ 5.69H
Power Consumption
at No load
12*0.64A=7.68W
NOTE:
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