The Inverter is usually very easily personalized to battery precedence via DIP change SW5. When battery precedence is selected, the inverter will offer electric power with the battery even when You can find AC enter. With AC/battery precedence selector, automated transfer switch, and break up period inverter assistance for 50Hz/60Hz https://www.mailiinverter.com/low-frequency-inverter/
Low frequency inverter charger
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