Router Battery Backup

So I am most likely now gonna go for a Synapse 600 with a Hubble S-100 battery. That should keep all more critical home stuff (as described earlier) for 6-7 hours at least. Thanks @wingnut771 for the tip. It's definitely not going to look as pretty or compact/usable as that Gizzu unit but so be it!

Can somebody check maths:

115W draw (220V) which is approx just under 1A, with 1.2kWh battery should give a runtime of around 100 hours right ? If true, it's overkill but then I never have to worry about alarm batteries ever again (for a long time)

Maths:-
From Hubble Brochure:
Rate Capacity :100Ah (5HR)

So runtime would be
100Ah/1A = 100 hours.
 
Last edited:
The Ellies Mini Cube powers my ONT and 1 TP Link Deco S4 Router for 10 hours for those wondering. I guess it wasn't a bad purchase, only time will tell. I see that the warranty is 3 years as well.
 
Lord Flacko said:
The Ellies Mini Cube powers my ONT and 1 TP Link Deco S4 Router for 10 hours for those wondering. I guess it wasn't a bad purchase, only time will tell. I see that the warranty is 3 years as well.
Click to expand...

I have one too. It's a good purchase. It's LiPO4. They don't say how many cycles but SunSynk also make proper batteries as many of the preppers on this forum can attest to. So probably at least 1,000 recharge cycles, which is 3-4 load shedding sessions per cycle which is many years.
 
TedLasso said:
So I am most likely now gonna go for a Synapse 600 with a Hubble S-100 battery. That should keep all more critical home stuff (as described earlier) for 6-7 hours at least. Thanks @wingnut771 for the tip. It's definitely not going to look as pretty or compact/usable as that Gizzu unit but so be it!

Can somebody check maths:

115W draw (220V) which is approx just under 1A, with 1.2kWh battery should give a runtime of around 100 hours right ? If true, it's overkill but then I never have to worry about alarm batteries ever again (for a long time)

Maths:-
From Hubble Brochure:
Rate Capacity :100Ah (5HR)

So runtime would be
100Ah/1A = 100 hours.
Click to expand...

One thing I would worry about. Is that inverter/charger designed for Li+2 batteries? Is there no risk of fire?

Has that been settled with these Li+2 drop in batteries too?
 
TedLasso said:
So I am most likely now gonna go for a Synapse 600 with a Hubble S-100 battery. That should keep all more critical home stuff (as described earlier) for 6-7 hours at least. Thanks @wingnut771 for the tip. It's definitely not going to look as pretty or compact/usable as that Gizzu unit but so be it!

Can somebody check maths:

115W draw (220V) which is approx just under 1A, with 1.2kWh battery should give a runtime of around 100 hours right ? If true, it's overkill but then I never have to worry about alarm batteries ever again (for a long time)

Maths:-
From Hubble Brochure:
Rate Capacity :100Ah (5HR)

So runtime would be
100Ah/1A = 100 hours.
Click to expand...

more like 10 hours

Its 100Ah at 12v, which is how they get to the 1.2kWh.

1200W / 115W = 10.43 hours
 
Last edited:
TedLasso said:
So I am most likely now gonna go for a Synapse 600 with a Hubble S-100 battery. That should keep all more critical home stuff (as described earlier) for 6-7 hours at least. Thanks @wingnut771 for the tip. It's definitely not going to look as pretty or compact/usable as that Gizzu unit but so be it!

Can somebody check maths:

115W draw (220V) which is approx just under 1A, with 1.2kWh battery should give a runtime of around 100 hours right ? If true, it's overkill but then I never have to worry about alarm batteries ever again (for a long time)

Maths:-
From Hubble Brochure:
Rate Capacity :100Ah (5HR)

So runtime would be
100Ah/1A = 100 hours.
Click to expand...
You're comparing 1A AC to 1A DC. Rather use W as that is a unit of energy and it don't give a crap about AC or DC.

So, 1200Wh divide 115W = 10.43 hours. Time that by 0.85 for inefficiencies and its around 9 hours.
 
Mirai said:
One thing I would worry about. Is that inverter/charger designed for Li+2 batteries? Is there no risk of fire?

Has that been settled with these Li+2 drop in batteries too?
Click to expand...
There is no risk. There is only a risk if there is no BMS and that is never the case, every lithium battery has a BMS.
 
wingnut771 said:
You're comparing 1A AC to 1A DC. Rather use W as that is a unit of energy and it don't give a crap about AC or DC.

So, 1200Wh divide 115W = 10.43 hours. Time that by 0.85 for inefficiencies and its around 9 hours.
Click to expand...
Better to get a trolly + battery or go full DIY? Suppose this depends on your level of effort. I'm thinking of starting here to buildup my solar, battery and inverter skills.
 
TedLasso said:
So I am most likely now gonna go for a Synapse 600 with a Hubble S-100 battery. That should keep all more critical home stuff (as described earlier) for 6-7 hours at least. Thanks @wingnut771 for the tip. It's definitely not going to look as pretty or compact/usable as that Gizzu unit but so be it!

Can somebody check maths:

115W draw (220V) which is approx just under 1A, with 1.2kWh battery should give a runtime of around 100 hours right ? If true, it's overkill but then I never have to worry about alarm batteries ever again (for a long time)

Maths:-
From Hubble Brochure:
Rate Capacity :100Ah (5HR)

So runtime would be
100Ah/1A = 100 hours.
Click to expand...

Steamy Tom said:
more like 10 hours

Its 100Ah at 12v, which is how they get to the 1.2kWh.

1200W / 115W = 10.43 hours
Click to expand...
I forgot to mention that on top of the calculations above, we need to factor in that we are only getting about 80% capacity out the battery as the lead acid charge only goes to 14.1V (unless it can be set to 14.4V then ignore this post), so 9 hours times 0.8 = 7 hours.
 
Herr der Verboten said:
Better to get a trolly + battery or go full DIY? Suppose this depends on your level of effort. I'm thinking of starting here to buildup my solar, battery and inverter skills.
Click to expand...
My setup will be a battery with a piece of wood on top with inverter on top of that. Nice short 2x25mm² cables or 50mm², I haven't investigated yet. I don't care about looks.
 
wingnut771 said:
My setup will be a battery with a piece of wood on top with inverter on top of that. Nice short 2x25mm² cables or 50mm², I haven't investigated yet. I don't care about looks.
Click to expand...
Can you list the items you used so I can compare notes as to my level 0 kills. From what I've read so far I need

  • Batteries
  • Battery connection cables
  • Battery charger
  • Inverter
  • Something to put everything in or at least batteries
 
Herr der Verboten said:
Can you list the items you used so I can compare notes as to my level 0 kills. From what I've read so far I need

  • Batteries
  • Battery connection cables
  • Battery charger
  • Inverter
  • Something to put everything in or at least batteries
Click to expand...
When my current battery dies I will get this:

powerforum-store.co.za

Synapse UPS 600W 12V DC - 230V AC, pure sine wave

Synapse 600w UPS Inverter: The Synapse 600w UPS is designed to work and protect electronic appliances and serves as a backup device in extremely hostile power environments. It comes with an AC input that allows the battery bank to be charged through the grid (cable included). An extra-wide input...
powerforum-store.co.za
and this:
powerforum-store.co.za

cloudlink

Available on Back order Next available stock 31/07/2022 HUBBLE LITHIUM S-12012.8V 1.5KWH• High Cycle Life and Service Life• High Performance Lithium battery• Internal Battery Management System• Excellent high temperature performance• High energy density and conversion efficiency• Can be...
powerforum-store.co.za

I will ask them nicely to make cables for me (1m of either 50mm² thickness or 2x25mm² crimped into one lug if 50mm² is too expensive, black and red colour for positive and negative) with the lugs crimped on as you need a special crimping tool for thick cable I understand. I used this tool to work out the thickness. I took 600W (inverter capacity) divide 12V = 50A. I used 1m which came to 25mm², then I doubled it just because I want the resistance as low as possible.

I will then take a piece of wood and put it on top of the battery making a table for the inverter (which is also a charger), then run an extension cord to the tv (I'm going to keep it in the basement and come through the wooden floor to minimise the fan noise).

Hope that makes sense.
 
Issuing a return on the one mini ups from Geewiz, it was charged but after 1 load shedding session it lasted 1 hour and now it won't charge back up.
Whereas it's bigger brother that I've had almost 3 years fully charges in 5 hours and it was powering a router and an ont, whereas the little one was just powering a single router.
 
My Gizzu POE power box used to last about 3 hours initially, powering an Ubiquity edge router x and an AP lite. In June this year, after about 2 years, it started shutting down after about 60 minutes.

I replaced the batteries with 4 Samsung 30Q 18650, 3000mAh cells. Man o man, now only the first light goes out with a few minutes left of a 2.5 hour load shedding session. Even with the recent Stage 4 (2.5 hours with no eskum feed, 5.5 hours power on, repeated 3 times a day), the second light never went off
 
wingnut771 said:
There is no risk. There is only a risk if there is no BMS and that is never the case, every lithium battery has a BMS.
Click to expand...

Are these BMS' reliable and rated? Is our understanding at this stage advanced enough or have these things been on the market long enough for us to have ironed out all the kinks? And is the QA good on these new no name companies. I could trust a BMS made by say Panasonic or Samsung but these no name brand ones?
 
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