Router Battery Backup

Any idea how those batteries are wired? I see it says 4x 2200mah. Is it 4S for 12V? In that case, aren't you gonna be pushing it for runtime? How much time are people getting from the Ratel 430?
 
PhireSide said:
My mate said the unit comes with two DC cables included. I think the jacks are of 5.1mm diameter? You could always buy more from your friendly neighbourhood electronics store if you require.
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Thanks
 
PhireSide said:
Kinda regret getting the Gizzu instead of the Ratel, but so we learn :)

I can at least confirm that the Gizzu does turn back on again if the unit is totally drained, and AC power returns. I was afraid that it would need to be physically turned back on again, but today's substation fault has removed all doubt.

I still love the little Gizzu, but I do need something a bit bigger as I have more kit running off it than initially anticipated. I'm patiently waiting for the Ratel 860p to become available at Communica...
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The Gizzu only has 1 DC out port which is either 5/9/12v selectable from what I remember ?

Somebody mentioned the power supply is not a perfect fit and slips out or something without tinkering ?
 
I've got an Asus router which is 19 v which I'd like to connect to the device as well... Anyone have ideas on a good step up to transformer, from 12 v at the ups to 19v at the router?
 
K3NS31 said:
Any idea how those batteries are wired? I see it says 4x 2200mah. Is it 4S for 12V? In that case, aren't you gonna be pushing it for runtime? How much time are people getting from the Ratel 430?
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Probably 4x 3.7v cells in series for 14.8v which is then stepped up/down to the requisite voltages.

I'd hazard a guess the 8xx series has 4x in series connected in parallel to another 4x in series.

My maffs may be out a bit but the Ratel 860 has 2200mAh * 8 = 17600mAh * 3.7v = 65wh. They claim 60W output so I guess minus a couple of watts for losses.

The 430 would then be 2200mAh * 4 = 8800mAh * 3.7v = 32wh rounded down to 30wh.

Again, my maffs might be off. I didn't do proper maffs at school :p

Regarding the Gizzu:

Modification of the AC input was needed
My initial thoughts on the unit
 
HaNsA said:

Has the estimated run time listed there
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I saw that spec sheet and my assumption is that those are Chinese numbers.
The Ratel 860p has eight 2200mA 3.7V 18650 batteries which equates to 65 Watt-hours.
That would give just over 3 hours pulling a 20 Watt load at 100% DoD and 100% efficiency.
To achieve a 10 hour run time with a 20 Watt load would require 200 Wh (ignoring any losses).
 
Paul_S said:
I saw that spec sheet and my assumption is that those are Chinese numbers.
The Ratel 860p has eight 2200mA 3.7V 18650 batteries which equates to 65 Watt-hours.
That would give just over 3 hours pulling a 20 Watt load at 100% DoD and 100% efficiency.
To achieve a 10 hour run time with a 20 Watt load would require 200 Wh (ignoring any losses).
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hm, if your calculations are correct, I'd be better off with that Sherlo with ~17AH capacity @ 12V, even with 50% DOD. Assuming approx 20 - 25W load?
 
FAZE MAZE said:
Double check the UPS settings in software. Can't confirm exactly how long my Mecer 2000VA UPS stays on, but i remember coming across settings that allow you to specify that you want the UPS to turn off after a specified amount of time (ie. not related to battery level). If you're getting exactly 2 hours every time then it is quite possible the UPS is set up to do so.
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Link to the software please
 
Regarding the Omnipower Ratel Micro DC-to-DC UPS range and other similar units :

The router and Fibre CPE/ONT stays plugged in permanently to the UPS with the UPS permanently switched on and then when the loadshedding starts the switchover is seamless or do you have to manually switch stuff on an off ?
 
joshuatree said:
Regarding the Omnipower Ratel Micro DC-to-DC UPS range and other similar units :

The router and Fibre CPE/ONT stays plugged in permanently to the UPS with the UPS permanently switched on and then when the loadshedding starts the switchover is seamless or do you have to manually switch stuff on an off ?
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I have the Gizzu unit and its plugged in permanently. Switch is pretty seamless. No manual intervention required.
 
I think the more important question - is it switching or is it running the stuff permanently off the batteries and just keeping them charged when the power is up?
 
HaNsA said:
Just ordered one myself!

Just a question, the cables from the battery to the devices, where do we get them from?
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mine came with a single Y cable with 5.1mm DC connections. But this is fine for me as my ONT and my router are both 12v.
 
Hoping some of the experienced fellow forumites can offer suggestions.

I'm a complete noob at this and have no idea where to start or what to get and how to make this work.

With loadshedding becoming a part of our daily lives I need to have a way of keeping the internet up to ensure we don't completely loose our minds when the power goes out.

I have a fibre ONT, Ubiquiti EdgeRouter X, Ubiquiti Switch8 60W 8-port PoE switch, 2x Ubiquiti Unifi AP's connected to the switch via PoE, and a Raspberry Pi to keep running for at least 4 hours at a time (worst case) when loadshedding kicks in.

With up to 2 or 3 2.5hour loadshedding sessions per day (God forbid we have >Stage4, meaning 4-hour sessions at a time), the solution would either need to recharge the battery/ies fast enough, or have sufficient charge to run the equipment for long enough to cover multiple loadshedding sessions.

I would like to get something for as cheap as possible, that will get the job done reliably.

What do I need? Where do I start? How do I make this work?

Thanks!
 
FrankyF said:
Hoping some of the experienced fellow forumites can offer suggestions.

I'm a complete noob at this and have no idea where to start or what to get and how to make this work.

With loadshedding becoming a part of our daily lives I need to have a way of keeping the internet up to ensure we don't completely loose our minds when the power goes out.

I have a fibre ONT, Ubiquiti EdgeRouter X, Ubiquiti Switch8 60W 8-port PoE switch, 2x Ubiquiti Unifi AP's connected to the switch via PoE, and a Raspberry Pi to keep running for at least 4 hours at a time (worst case) when loadshedding kicks in.

With up to 2 or 3 2.5hour loadshedding sessions per day (God forbid we have >Stage4, meaning 4-hour sessions at a time), the solution would either need to recharge the battery/ies fast enough, or have sufficient charge to run the equipment for long enough to cover multiple loadshedding sessions.

I would like to get something for as cheap as possible, that will get the job done reliably.

What do I need? Where do I start? How do I make this work?

Thanks!
Click to expand...

Start by checking the power requirements of all those devices, Volts and Amps. This will tell you what type of device you need and the capacity of the batteries and the charger on it. Are all those devices in one place? Except the AP's obviously.
 
FrankyF said:
Hoping some of the experienced fellow forumites can offer suggestions.

I'm a complete noob at this and have no idea where to start or what to get and how to make this work.

With loadshedding becoming a part of our daily lives I need to have a way of keeping the internet up to ensure we don't completely loose our minds when the power goes out.

I have a fibre ONT, Ubiquiti EdgeRouter X, Ubiquiti Switch8 60W 8-port PoE switch, 2x Ubiquiti Unifi AP's connected to the switch via PoE, and a Raspberry Pi to keep running for at least 4 hours at a time (worst case) when loadshedding kicks in.

With up to 2 or 3 2.5hour loadshedding sessions per day (God forbid we have >Stage4, meaning 4-hour sessions at a time), the solution would either need to recharge the battery/ies fast enough, or have sufficient charge to run the equipment for long enough to cover multiple loadshedding sessions.

I would like to get something for as cheap as possible, that will get the job done reliably.

What do I need? Where do I start? How do I make this work?

Thanks!
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I'd buy a decently sized inverter and battery kit and take it from there.

As mentioned if you can provide Volts and Amps per device we can probably get an estimate of the size kit that you'd require
 
HaNsA said:
I've got an Asus router which is 19 v which I'd like to connect to the device as well... Anyone have ideas on a good step up to transformer, from 12 v at the ups to 19v at the router?
Click to expand...
A universal car charger for laptops should do it.

Something like this:

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Used my Ratel 430P during load shedding for two hours last night and only the first of four LEDs went off. Was powering a Hauwei B525. Most specs sheets list it as 20W and one as 12W, the PSU is 12V x 2A. But I guess it was closer to the 10W usage based on the UPS.

So far happy with it. Except for the POE which turns out doesn’t work with my camera.
 
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