Yip, 1 hour up time, router and ONT box, shouldn’t be too much of a power draw from that
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Router Battery Backup
- Thread starter werfie
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- adsl load shedding router ups
Yip, 1 hour up time, router and ONT box, shouldn’t be too much of a power draw from that
airborne
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Built.
I bought the connector from Uniterm Direct (www.dbg.co.za) and made the cable up myself.
Just double check which wires are carrying the power.
I think (can't remember now) that you also need to check the polarity.
Edit: I actually redid that one since it was way too short.
Used it to provide power from PoE port on this
to this
which is powering two Unifi AC-LITE.
The Ultralan is therefore powering a fibre ONT, fibre router, PoE injector and two AP's.
Works a treat - full speed Internet and wifi throughout LS
Those DC jacks with the green at the back are commonly used with security cameras, any security shop should have them.
I am now convinced this is the way ( a UPS paired with a lithium battery )
mybroadband.co.za
Mecer 2400VA Inverter (Community Support)
Will a 50ah lithium battery last longer than a 100ah lead acid battery at the same run time? The way I understand it is 100ah lead acid is actually just 50ah, cause you cannot run it to 0% ( 50% DoD ) But lithium you can to 0% if you want So a 4-hour run on 100ah lead acid should be an 8-hour...
mybroadband.co.za
I am now convinced this is the way ( a UPS paired with a lithium battery )
Mecer 2400VA Inverter (Community Support)
Will a 50ah lithium battery last longer than a 100ah lead acid battery at the same run time? The way I understand it is 100ah lead acid is actually just 50ah, cause you cannot run it to 0% ( 50% DoD ) But lithium you can to 0% if you want So a 4-hour run on 100ah lead acid should be an 8-hour...
View attachment 1343982
It will not start a fire?
Those Li batteries need dedicated specced chargers.
I am weary of putting a Li battery to replace the 12V lead acid backup battery of my alarm system.
No sir, these batteries are made for this specific application. I also had the same concerns but then I learned about the BMS inside for this very purpose.
SauRoNZA
Honorary Master
They have their own BMS.
SauRoNZA
Honorary Master
Your the one who said they need special chargers.
But they don’t since the BMS manages the charging.
I’m pretty sure they have certifications to go along with it if required.
These things are in hundreds if not thousands of homes already.
& the specification specifically endorsing this use case.So you're saying Lithium and lead acid is the same.
Do you have proof of this?
So you don't but you're pretty sure.
Do you have actual printed certificates, have they been certified to be used with any charger out there which is currently charging lead batteries. Will insurance companies be OK with such batteries being used. Will I not have a fire on my hands?
Right now you didn't contribute anything to this conversation. If you don't know, don't pretend to be an expert.
richjdavies
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Only problem I can't think of is that a UPS is pretty bad at being an inverter. Often 70% efficient rather than the 90+ of an "inverter".I am now convinced this is the way ( a UPS paired with a lithium battery )
Mecer 2400VA Inverter (Community Support)
Will a 50ah lithium battery last longer than a 100ah lead acid battery at the same run time? The way I understand it is 100ah lead acid is actually just 50ah, cause you cannot run it to 0% ( 50% DoD ) But lithium you can to 0% if you want So a 4-hour run on 100ah lead acid should be an 8-hour...
View attachment 1343982
Let us know your mileage. Got a UPS sitting here I could give my in laws if this lithium battery gives a few hours.uptime. (the UPS when brand new gave just under 2 hours fully charged but that was with basically nothing on it, just router in the days before gizzus. Now because it's dead-acid it last about 4 seconds with load
)Only problem I can't think of is that a UPS is pretty bad at being an inverter. Often 70% efficient rather than the 90+ of an "inverter".
Let us know your mileage. Got a UPS sitting here I could give my in laws if this lithium battery gives a few hours.uptime. (the UPS when brand new gave just under 2 hours fully charged but that was with basically nothing on it, just router in the days before gizzus. Now because it's dead-acid it last about 4 seconds with load
100%, that is actually something I need to mention on the article.
The efficiency of a dedicated inverter will be higher than the UPS.
I have practical application& the specification specifically endorsing this use case.
Could you please link to those certifications. Thanks.
richjdavies
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What certificate are you looking for? What certificate do you get on the lead acids you've been using?
Quick google shows other established retailers selling this
Securipro and Regal aren't a fly by night and it is quite explicit that these can be used
"Suitable SLA Replacement – Gate Motor, Energizer, Alarm System, UPS"
Of course it's still buyer beware... But come on, a person replacing batteries in any system has this risk. Lead acids are dangerous too...
SauRoNZA
Honorary Master
Go read what a BMS actually is and do your own research on the topic and then you’ll understand.
No fires, no drama, no insurance worries. It’s literally built for lead acid drop in replacement.
I’m not doing the work for you.
Your the one failing to contribute anything.
I contacted Blue Nova and they said their MPS (with BMS) batteries needs to be charged with lithium battery chargers.
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@Gnome
mybroadband.co.za
BlueNova MPS - recommended a charger please.
I'm looking to get a Bluenova MPS battery along with a charger as power backup. I already have an inverter. What would be the easiest / most affordable way to charge these batteries? I see the datasheet says "bulk voltage = 14.4vdc" and "float voltage = 13.8" does that mean I need a charger...
mybroadband.co.za
SauRoNZA
Honorary Master
I do believe it depends a bit on which battery for which application but they are very helpful in regards to what works where and how to go about it.
Their alarm batteries for instance just drop in place no further drama required.
The ones marketed as drop-in replacements should be the same across the board I’m sure.
Lithium being purely lithium is a different kettle of fish.
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Bit of a tight fit in the case but i made it fit with a bit of push and shove , not sure how clean the 12V DC is but it works for the application .
BTW i have three of those batteries and the BMSs work i charged one with a normal battery charger and when it was full it cut the charge .
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wingnut771
Honorary Master
As long as the voltage is less than 14.6V you can use any charger.