Router Battery Backup

richjdavies said:
Lots of electronics have PSU chips in them that can handle a range of voltages.
Lucky you, you dont have to test as you already have. Based on what youve said it seems YOUR router and ONT can run at 9v and 12v... They most likely drop to 5v or 3.3v internally anyway. Poop

Before reading this thread, I had presumed most routers/ONTs were like this, happily my (in hindsight) gamble in the past with both my own and inlaws router and ONT paid off!

Don't read the above as advice... It is not :) not taking any flack for people breaking their routers!!
Click to expand...
thanks for the input :)
Makes sense that it will work if it is currently working fine with the power supplies. Just not sure if it will eat into the battery or something if the device is trying to draw 12v but the UPS is only giving 9v.
 
Brawler said:
thanks for the input :)
Makes sense that it will work if it is currently working fine with the power supplies. Just not sure if it will eat into the battery or something if the device is trying to draw 12v but the UPS is only giving 9v.
Click to expand...
That's not how electricity works. Voltage is more like water pressure.
If you give a device 9V it will have to take 9V and decide what to do with it. It will draw slightly more AMPS (think size of the pipe) to get to the same amount of power overall, but that's tiny for small electronics, not important.

If you give a device 12V but it can only handle the 'pressure' of 9V it can break. If you give it less volts it might not work, but it's unlikely to break.
However as I said above, most routers will take that DC input and immediately put it through a power regulator chip which probably puts it down to 3.3V anyway. Think of this like pressure regulatory immediately at the tap - doesn't matter what pressure the water is at before (within reason - obviously too much pressure can break the regulatory and blow up your pipes!). That power regulatory may be 3-12V or 5-24V or 5-30V... so you still need to be somewhat careful - more expensive electronics will have more forgiving ranges.
[someone else can correct my words above... probably not 100% correct]
 
Last edited:
microsoftword said:
60watts isn't a lot for a PoE switch
Click to expand...
In case it helps .

I got a USG, UBNT 8 port poe switch, hub , 2 X poe AP, another dlink 8 port GB switch, 1 X pi and 1 laptop running, the ONT, a NAS, and some small iOT devices running of one Sonoff pow r2. Total load is about 70w on average.
 
Would you guys rate the Ratel 860P as better quality than the Gizzu? I can get stock for both models right now and am battling to decide between the two. The price difference is like 400 banana coins.
 
Shpongle said:
Would you guys rate the Ratel 860P as better quality than the Gizzu? I can get stock for both models right now and am battling to decide between the two. The price difference is like 400 banana coins.
Click to expand...
The Ratel 860p has much higher battery capacity than the Gizzu. I'd go for that personally
 
InternetLuddite said:
In case it helps .

I got a USG, UBNT 8 port poe switch, hub , 2 X poe AP, another dlink 8 port GB switch, 1 X pi and 1 laptop running, the ONT, a NAS, and some small iOT devices running of one Sonoff pow r2. Total load is about 70w on average.
Click to expand...

ok
 
Shpongle said:
Would you guys rate the Ratel 860P as better quality than the Gizzu? I can get stock for both models right now and am battling to decide between the two. The price difference is like 400 banana coins.
Click to expand...
Does anyone know where there is stock for a Ratel 860p today?
Edit: Would prefer 8100
 
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powermzii said:
So after 2hrs of LS my Ratel 860p is sitting at 50%. Powering:
  1. Rain 5G CPE through PoE
  2. Mikrotik hAP ac2
  3. Netgear 5port GB unmanaged switch
  4. 1xAirties Wifi AP
Click to expand...

Thanks this is helpful, all I have to power is an ONT and a Mikrotik hAP ac2 so should be good to go for ages.
 
richjdavies said:
That's not how electricity works. Voltage is more like water pressure.
If you give a device 9V it will have to take 9V and decide what to do with it. It will draw slightly more AMPS (think size of the pipe) to get to the same amount of power overall, but that's tiny for small electronics, not important.

If you give a device 12V but it can only handle the 'pressure' of 9V it can break. If you give it less volts it might not work, but it's unlikely to break.
However as I said above, most routers will take that DC input and immediately put it through a power regulator chip which probably puts it down to 3.3V anyway. Think of this like pressure regulatory immediately at the tap - doesn't matter what pressure the water is at before (within reason - obviously too much pressure can break the regulatory and blow up your pipes!). That power regulatory may be 3-12V or 5-24V or 5-30V... so you still need to be somewhat careful - more expensive electronics will have more forgiving ranges.
[someone else can correct my words above... probably not 100% correct]
Click to expand...
thanks again for your input. So far running everything nicely on 9v..
 
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