12V batteries for Loxone Power Supply and Backup

[Thorfun]

@Temp fyi https://www.loxone.com/enen/kb/power-supply-backup/

[Thorfun]

28 minutes ago, SteamyTea said:

First two of them are not essential, third is debatable.

 

Maybe look at what you really do need i.e. heat, light, cooking, the rest can be disconnected for several hours without impacting anything.

sorry but the sump pumps are most definitely essential! if you've read my basement flooding thread you'll know the pain we went through when a pump wasn't working. 😢

 

the internet is also essential so our flood detectors are able to communicate and alert if required

 

also we've only got 16A max so any heating won't be able to be run (max 3.6kW) and the house is insulated and airtight enough for us to not worry about heat loss too much.

 

food? that's what local takeaways are for.

[SteamyTea]

5 minutes ago, Thorfun said:

if you've read my basement flooding thread you'll know the pain we went through

I haven't, against popular misconception, I don't really take pleasure in others misfortune.

[Thorfun]

batteries installed and 42Ah backup available. I like the reporting capabilities of the Power Supply and Backup on top of the whole 7 x PSUs in one unit. nice bit of kit. expensive, but nice! I'll test the battery backup during the day when the family aren't using their lights. 😉 

 

Current usage is 93W so even if we maintained that in a power cut that would give us over 10hrs of 24V backup lighting. more than enough I think.

 

 

what the reporting also shows is that we have loads of headroom on the PSUs.  the ones with 10A fuses in them can take 240W so I could actually amalgamate some of the lights if I need more than the one spare output I have left.

[Johnnyire]

On 07/04/2024 at 17:48, Thorfun said:

greetings. looking for batteries for backup to my 24V Loxone stuff via the power supply and backup. I need 3 x 12V batteries and I'm thinking AGM batteries are the way to go as this website seems to suggest they're more efficient and according to the Loxone knowledge base they say 

 

 

All my 24V lights running at the same time would be around 40A or 960W. so let's assume that I have 3 x 15Ah batteries that would mean I could only run the 24V lights for only 2hrs max! doesn't seem like a long time. so, therefore, I need bigger capacity batteries, right? but then the cost starts increasing dramatically!

 

if I look at Tanya.co.uk a 45Ah battery is about £175. so 3 of those is just over £500. but that would give me 135Ah of backup which would run the lights for 5hrs.

 

which doesn't seem a lot either!

 

has anyone out there who has a power supply & backup connected 36V batteries and, if so, which did you go for?

 

(note. if my maths above is wrong please feel free to correct me! I think you know by now that maths/physics/electrics are not my strong point)

Have you solar and a battery? I am building and installing Loxone. Was thinking I will get the Gateway with a Sigenergy system so can run the house if we lose power.