Router Battery Backup

I went on a UPS calculator site to check what I would need to keep my tp link router(12W) and Ubiquiti Unifi AP (19W) up and it says I would need a 2000VA UPS for a 2 hour load shedding session. Does this sound right?
 
airborne said:
Apply common sense... USB input =?
Click to expand...
It's just a usb to 5.5mm power, it doesn't change/boost the voltage. See the description

9c1711f2f3e8e587ee6c89c736a591a3.jpg
 
looks pretty suspect, USB power is normally 2 amps max and if you were to convert 5 volts to 12 volts your amps would become 833 milli amps @ 12 volts. Not much out there can run on only 800 milliamps.
 
airborne said:
Apply common sense... USB input =?
Click to expand...
5v. Sorry but I dont get what you are trying to say. This could just be a usb to 5.5 mm connector keeping to the 5v at the other end... Yours converts 5v into 12v right? I strongly suspect that this does not.
 
Reaper84 said:
I went on a UPS calculator site to check what I would need to keep my tp link router(12W) and Ubiquiti Unifi AP (19W) up and it says I would need a 2000VA UPS for a 2 hour load shedding session. Does this sound right?
Click to expand...
Duration would depend on the Ah of the battery. You're only using 31W so 40VA should be sufficient, the catch is in the battery.

I have a 700VA UPS with a 7Ah battery running two LTE modems and a wifi router.
 
Speedster said:
Duration would depend on the Ah of the battery. You're only using 31W so 40VA should be sufficient, the catch is in the battery.

I have a 700VA UPS with a 7Ah battery running two LTE modems and a wifi router.
Click to expand...
Does your 7aH battery in the 700VA UPS keep your 2 LTE modems and your router going the entire load shedding duration?
 
Chuckmyster said:
Does your 7aH battery in the 700VA UPS keep your 2 LTE modems and your router going the entire load shedding duration?
Click to expand...
I only installed it yesterday and made it through the load shedding session yesterday, albeit with only two of the devices operational
 
Speedster said:
...

I have a 700VA UPS with a 7Ah battery running two LTE modems and a wifi router.
Click to expand...

Also bought a 720VA / 360W for our small office yesterday. http://pss.co.za/product/ap-series

Planning to connect a router and ONT (fibre) to it. I basically just want it to keep the network and analogue phone up until I can get the other machines on the network shutdown and the phone line diverted/forwarded...

Doesn't look like one can disable the speaker/alarm in software & no front panel settings on these cheapies. Removed the internal speaker from the board (broke it off). Warranty is void. Acceptable risk at +-R450 a pop.
 
Park@82 said:
Also bought a 720VA / 360W for our small office yesterday. http://pss.co.za/product/ap-series

Planning to connect a router and ONT (fibre) to it. I basically just want it to keep the network and analogue phone up until I can get the other machines on the network shutdown and the phone line diverted/forwarded...

Doesn't look like one can disable the speaker/alarm in software & no front panel settings on these cheapies. Removed the internal speaker from the board (broke it off). Warranty is void. Acceptable risk at +-R450 a pop.
Click to expand...
Yeah I normally just wedge a good dollop of prestik onto the buzzer, it still audible but very soft
 
Chuckmyster said:
Yeah I normally just wedge a good dollop of prestik onto the buzzer, it still audible but very soft
Click to expand...
tried with hot glue. still too loud for my liking. it is a home office and in the middle of the night everything sounds a lot louder... :p
 
Park@82 said:
tried with hot glue. still to loud for my liking. it is a home offce and in the middle of the night everything sounds a lot louder... :p
Click to expand...
LOL Cool, then busting it off was a good idea, like you say a cheapy at 450 rond :thumbsup:
 
Park@82 said:
5v. Sorry but I dont get what you are trying to say. This could just be a usb to 5.5 mm connector keeping to the 5v at the other end... Yours converts 5v into 12v right? I strongly suspect that this does not.
Click to expand...
joker08 said:
It's just a usb to 5.5mm power, it doesn't change/boost the voltage. See the description

9c1711f2f3e8e587ee6c89c736a591a3.jpg
Click to expand...
Oops, my apologies, could swear I saw 12v output, I was surprised at the price as well.
Chuckmyster said:
looks pretty suspect, USB power is normally 2 amps max and if you were to convert 5 volts to 12 volts your amps would become 833 milli amps @ 12 volts. Not much out there can run on only 800 milliamps.
Click to expand...
Mine works fine with a ADSL router that uses a 12v 1.5A power supply, that's with one device on WiFi, ran like that for a few hours hassle free.
 
airborne said:
Oops, my apologies, could swear I saw 12v output, I was surprised at the price as well. Mine works fine with a ADSL router that uses a 12v 1.5A power supply, that's with one device on WiFi, ran like that for a few hours hassle free.
Click to expand...
WOW - well done, nice to hear :thumbsup:
 
Park@82 said:
Also bought a 720VA / 360W for our small office yesterday. http://pss.co.za/product/ap-series

Planning to connect a router and ONT (fibre) to it. I basically just want it to keep the network and analogue phone up until I can get the other machines on the network shutdown and the phone line diverted/forwarded...

Doesn't look like one can disable the speaker/alarm in software & no front panel settings on these cheapies. Removed the internal speaker from the board (broke it off). Warranty is void. Acceptable risk at +-R450 a pop.
Click to expand...
I'm opening mine up and breaking of that darn speaker the moment this load shedding shift is over. Freaking irritating...
 
Speedster said:
I'm opening mine up and breaking of that darn speaker the moment this load shedding shift is over. Freaking irritating...
Click to expand...
I did that, took some pliers and shattered the thing. Peace and quiet. It still clicks when it changes over from power to battery and that's enough to alert me as to something is wrong
 
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