Nero 5 battery backup plan

[Buckerberg]

There are ongoing roadworks in my street and they will continue for the next 2 years.

Over the last week alone power has gone out 2 times (2hr average) and this will probably happen more often so I want to make sure I have some backup/failover for flow as this occurs.
I am less concerned with heating as my in house temperature is mostly stable.


After some research it seems the Tunze safety connector would fit on my Nero 5 pump.
I need 24V DC To power a Nero 5 which is possible by placing 2 12V batteries in series.

I would also add a trickle charger to make sure the batteries are always ready and fully charged.

Schema:

Batteries

ECO-WORTHY LiFePO4 Rechargeable Lithium Battery 12V 20Ah Deep Cycle 3000-15000 with BMS Protection for Trolling Motor Wheelchair Camping : Amazon.com.be: Automotive

ECO-WORTHY LiFePO4 Rechargeable Lithium Battery 12V 20Ah Deep Cycle 3000-15000 with BMS Protection for Trolling Motor Wheelchair Camping : Amazon.com.be: Automotive

www.amazon.com.be

Trickle charger

https://no.co/support/genius-battery-chargers/genius/genius2X2

Does this seem like a good setup or am I missing something?

 

[bubbgee]

Looks fine. I went with the Icecap backup battery and that worked for two nero 3 I use. I am also taking a look at this one for my nano (AI Axis 20).

battery backup

 

[Salty_Northerner]

How about a UPS battery backup? The Nero uses hardly any power. Power goes out UPS kicks in. Power comes back on pump stays running the UPS charges up ;)

 

[Thales]

Ecoflow units are sizable, scalable, and work well for our application. They also come with all kinds of bells and whistles, as well as refurbs available on ebay. A little more than DIY, but sometimes worth it

 

[Buckerberg]

Looks fine. I went with the Icecap backup battery and that worked for two nero 3 I use. I am also taking a look at this one for my nano (AI Axis 20).

battery backup

Unable to find a dealer for the Icecap over here in Europe.

That UPs is only 2 amps so how long would that last on your axis pump?

 

[Buckerberg]

How about a UPS battery backup? The Nero uses hardly any power. Power goes out UPS kicks in. Power comes back on pump stays running the UPS charges up ;)

I also reseqrched that. Is there not a lot of energy wased with conversion as UPS is DC but has AC outlets?

 

[bubbgee]

Unable to find a dealer for the Icecap over here in Europe.

That UPs is only 2 amps so how long would that last on your axis pump?

Probably longer than a day since i run the axis at 50% at most. I am close to the fire department, police department and city hall so I've never had an outange longer than a day at most.

 

[JohnNYC8]

There are ongoing roadworks in my street and they will continue for the next 2 years.

Over the last week alone power has gone out 2 times (2hr average) and this will probably happen more often so I want to make sure I have some backup/failover for flow as this occurs.
I am less concerned with heating as my in house temperature is mostly stable.


After some research it seems the Tunze safety connector would fit on my Nero 5 pump.
I need 24V DC To power a Nero 5 which is possible by placing 2 12V batteries in series.

I would also add a trickle charger to make sure the batteries are always ready and fully charged.

Schema:

Batteries

ECO-WORTHY LiFePO4 Rechargeable Lithium Battery 12V 20Ah Deep Cycle 3000-15000 with BMS Protection for Trolling Motor Wheelchair Camping : Amazon.com.be: Automotive

ECO-WORTHY LiFePO4 Rechargeable Lithium Battery 12V 20Ah Deep Cycle 3000-15000 with BMS Protection for Trolling Motor Wheelchair Camping : Amazon.com.be: Automotive

www.amazon.com.be

Trickle charger

https://no.co/support/genius-battery-chargers/genius/genius2X2

Does this seem like a good setup or am I missing something?

I’d go the lithium power station route. You can get an Ecoflow Delta 2 for $450 right now and it’ll run that one pump for a week. The Delta 2 can run as a UPS for an auto-changeover. It’s a much better solution than 2x 12v batteries and a separate controller.

Edit: in terms of DC AC efficiency it’s about 3watts on my Delta 2 so it’s negligible.

 

[cwills75]

Personally, I'd just buy a Sicce XStream SCD WiFi Wave Pump. It's $229 and it has dual 12V power inputs, one for mains, one for battery backup. You can get a battery backup for it on Amazon starting around $20. On top of that, unlike the Nero you can access it via the app outside of your LAN as it's wi-fi, not bluetooth. It also has the ability to turn off the rotor in pulse modes to give you actual pulsing. I have two AI Nero wavemakers and one Orbit, and in pulse mode, during the "off" phase, the impellers never stop. The minimum speed is like 650+ gph, so pulsing is hard to achieve in smaller tanks, and tanks without running multiples on opposite ends.

I've discussed this with AI numerous times and they've basically told me to pound salt. They said they can't do a firmware update to make the impellers stop in off mode because fish will get sucked up in the wavemakers. I told them I have multiple other mfgs. units right now that have been pulsing with off mode for years and I've yet to lose a single fish, AND 3rd party guards exist where you can tighten up the holes/slots on them (anenome guards, etc.), so it's not really an issue. I'm pretty sure they do it like this because if the impeller were to actually stop during on/off pulses, the motor would seize up and I've had mine "stuck" at times where I've had to go in there and hit the impeller with a toothpick to get it going again. I've had to do this because I don't use the feed mode in MyAI/Mobius, I have my filters/wavemakers on a smart strip and when I hit feed mode on that, it just kills the power to the devices.

 

[Buckerberg]

I’d go the lithium power station route. You can get an Ecoflow Delta 2 for $450 right now and it’ll run that one pump for a week. The Delta 2 can run as a UPS for an auto-changeover. It’s a much better solution than 2x 12v batteries and a separate controller.

Edit: in terms of DC AC efficiency it’s about 3watts on my Delta 2 so it’s negligible.

The Ecoflow delta 2 seems like a nice option and indeed better value although the price is a bit higher it seems only 20% more then my first option with the safety connector but with a lot more features.
Buy once cry once right!

Its on sale right now for €499 so I just ordered one

Thx to both @JohnNYC8 & @Thales for recommending this option!

 

[Buckerberg]

Todsy disaster struck the cable on the street in front of my house caught fire


The ecoflow delta 2 powered my reef for almost the entire day running flow, heating , ato and my apex for over 6hours with 50% of juice left.

It was a great recommendation!