Is there any power backup device which can give long hours - at least 8 hours of backup for an account adapter ?
I want to run an ADSL WiFi modem when there is no power....
Ups only gives power for less than 30 minutes.
You may connect your router to the UPS and the UPS to the inverter. If the inverter has a UPS mode, keep it on that mode and connect the router directly to it.
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