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● Does the battery user replaceable by himself?
No, it doesn't.
● Can the AC output carry a Household refrigerator or
air conditioner?
Yes, it can carry some refrigerators and air conditioners.
● 50Hz/60Hz frequency switching
How to set up: Then Press and hold the DC button or press AC
button at the same time to select 50Hz and 60Hz. The frequency
displayed on the LCD will change accordingly.
● How do you reset factory Settings (reboot
system)?
Please insert the reset hole with a toothpick to
restore the factory setting (reboot system).