Mini UPS query

[AfricanTech]

That's not quite how voltage and amps work... But okay.

What's the exact ONT then maybe someone confident can say "Yeh, I run that at 5V and it's fine"

OP didn't say which ONT it is.

I'm no expert in this area at all hence the conservative approach

 

[capd]

AFAIK all ONTs are 12V.

 

[Anne-Leigh]

Oh man I am pissed off. Thank you all so much!

 

[TStringList]

So what would be a good option for something that requires 12V and 24V?

I got this but the 24V is not powering the wireless device although the 12V is powering the router.

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[capd]

So what would be a good option for something that requires 12V and 24V?

I got this but the 24V is not powering the wireless device although the 12V is powering the router.

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What is the 24V wireless device?

 

[TStringList]

What is the 24V wireless device?

It's a wireless antenna and I think it requires PoE because the cable splits into a power cable and an ethernet cable that goes into the router.

 

[capd]

It's a wireless antenna and I think it requires PoE because the cable splits into a power cable and an ethernet cable that goes into the router.

Which cable?

You likely need either of these.

Rappid RJ45 Power Over Ethernet POE Adapter Injector & Splitter Cable available to buy online at @TAKEALOT We offer fast, reliable delivery to your door.

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[capd]

It's a wireless antenna and I think it requires PoE because the cable splits into a power cable and an ethernet cable that goes into the router.

Mini DC UPS (Internet Backup Power) - 45W 8.8AH available to buy online at @TAKEALOT We offer fast, reliable delivery to your door.

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[TStringList]

Mini DC UPS (Internet Backup Power) - 45W 8.8AH available to buy online at @TAKEALOT We offer fast, reliable delivery to your door.

Takealot.com: Online Shopping | SA's leading online store

South Africa's leading online store. Fast, reliable delivery to your door. Many ways to pay. Shop anything you can imagine: TVs, laptops, cellphones, kitchen appliances, toys, books, beauty & more. Shop the mobile app anytime, anywhere.

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View attachment 1337840

Thanks, so we have the splitter cables already which is being powered from a plug point. Just a matter of finding a decent 24V UPS to power it. For some reason the Vizia one did not work so might try this one. Thanks!

 

[rh1]

@rh1 to be fair I am lucky to be on City of Cape Town power. So ‘sheds are limited to 2 - 2.25 hours.

In other cases, yes I would get a mini UPS for each device/ONT and router…

I am a Eskom Direct Customer. We had a 6 hour outage on Monday.

 

[ld13]

Thanks, so we have the splitter cables already which is being powered from a plug point. Just a matter of finding a decent 24V UPS to power it. For some reason the Vizia one did not work so might try this one. Thanks!

Dont even - first check what your antenna/cpe requires. It might need 24V 5A or active POE instead of passive.

 

[kota]

My Guzzi dual DC UPS arrived yesterday just in time for the load shedding, so far so good, it came charged and included 2 x dc plug adapters.

 

[capd]

Thanks, so we have the splitter cables already which is being powered from a plug point. Just a matter of finding a decent 24V UPS to power it. For some reason the Vizia one did not work so might try this one. Thanks!

I’ve used four different wireless antennas from Cambium and Ubiquiti. All used similar PoE injectors and all worked perfectly with the Gizzu PoE.

You might want to upload pics of your power injector.

 

[People$champ]

I got me the Vizia Wifi UPS - Mini Ups it has 5/9/12v outputs and works well I can get 4 hours powering just the router and ONT. For the Volkano get you a stepdown splitter to run the router as the ONT is 12V but the routers differ in inputs.

 

[rh1]

Not going to create a new thread.

My 4 year old mini UPS, was fully discharged after 9 hour valiant struggle despite not being fully charged due to the load shedding.

How long would it take to fully recharge using a 12v 1.5amp charger.

It is this one: https://www.geewiz.co.za/ups/122378...nk-supply-3848wh-2x-12v-1x-5v-usb.html?post=1

Google only gave me results for 5v 0.5amp chargers

I want to fully recharge it before reconnecting it to the ONT.

 

[People$champ]

Google gave me this

How long does a 10000 mAh battery take to charge?


You can safely recharge your PowerCore 10000 in 6-7 hours using a charger with an output of 2 Amps (2A) or higher. Chargers with an output lower than 2A (such as phone chargers) will not charge as quickly or safely.

So I would say 8-10 hours charge as you using 1,5amp charger

 

[rh1]

12v x 1.5A = 18W

Your capacity is 38.48Wh

38.48 divide 18 = 2.155 hours

In theory.

Ok so I my calculation based on googling was right, but was not sure, as it has been 2.75 hours (2h45m) and it is still charging.

 

[wingnut771]

Not going to create a new thread.

My 4 year old mini UPS, was fully discharged after 9 hour valiant struggle despite not being fully charged due to the load shedding.

How long would it take to fully recharge using a 12v 1.5amp charger.

It is this one: https://www.geewiz.co.za/ups/122378...nk-supply-3848wh-2x-12v-1x-5v-usb.html?post=1

Google only gave me results for 5v 0.5amp chargers

I want to fully recharge it before reconnecting it to the ONT.

12v x 1.5A = 18W times 0.8 for losses (14.4W)

Your capacity is 38.48Wh

38.48 divide 14.4 = 2.67 hours

In theory.

 

[People$champ]

this is a other calculation I found

Charging Time = Battery Capacity ( Ah ) (Divided by) Charging (input) Current to Battery (A)
Time= 16.80/1 = 16.80 Hour.
If its 2 A
then Time =16.80/2 = 8.40 Hour

 

[wingnut771]

Ok so I my calculation based on googling was right, but was not sure, as it has been 2.75 hours (2h45m) and it is still charging.

I edited my post a little. There could be more losses, what is the level at now?