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• Case How long a fully charged 12 volt battery and a 12 volt inverter can last depends on the capacity of the 12 volt battery, the total energy consumption of the load, and the conversion efficiency of the inverter.

# How long can a fully charged 12 volt battery and 12 volt inverter last?

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• Xindun
• December 18, 2020

12 volt inverter is an electronic device that converts 12 volt direct current into alternating current, which can drive loads whose power is below its rated power. How long a fully charged 12 volt battery and a 12 volt inverter can last depends on the capacity of the 12 volt battery, the total energy consumption of the load, and the conversion efficiency of the inverter.

Assuming that the battery capacity is X (Ah), the conversion efficiency of a 12 volt inverter is a%, the total energy consumption of the load is P (W), and the rated voltage is U (V), then the load's operating current I = P/U. Battery use time T=a%*X/I=a%*X*U/P. You only need to substitute various data into the above formula. It is worth noting that the inverter has no-load loss, and the actual use time will be slightly shorter than the above results.

12 volt inverter + 12 volt battery can be used as a backup power source when going out or in a power outage. Xindun has a variety of 12 volt inverters and 12v batteries to choose from. If you need it, please come to consult.