Expected lifetime of OutBack Energy Cell

Discussion about the OutBack Energy Cell Batteries
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donjuedo
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Expected lifetime of OutBack Energy Cell

Post by donjuedo » Thu Dec 10, 2015 2:14 pm

The OutBack web site shows a "EnergyCell Nano-Carbon" battery. How many years should folks expect to get out of this?

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Sandra Herrera
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Re: Expected lifetime of OutBack Energy Cell

Post by Sandra Herrera » Fri Dec 11, 2015 1:12 pm

Hello,
Battery lifespan is based of cycles and depth of discharge, it is very difficult to say years without understanding your application.
This link below is the batteries spec sheet, if you look at the end of the document, you will find a chart that might help.

http://www.outbackpower.com/downloads/d ... csheet.pdf
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Re: Expected lifetime of OutBack Energy Cell

Post by donjuedo » Fri Dec 11, 2015 1:27 pm

Thanks, Sandra. I have never lived off grid before, so obviously there are many factors to consider when estimating the battery life. I.e., I have to guess a lot.

Estimating very roughly from the chart, using 1/3 depth of discharge results in the most energy stored and delivered over the life of the battery. And again, from the chart, it looks like it's in the neighborhood of 10 years. Not bad!

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Re: Expected lifetime of OutBack Energy Cell

Post by Sandra Herrera » Mon Dec 14, 2015 3:23 pm

Since you havenÔÇÖt lived off-grid before, I would be more conservative on my calculations and say 50% of discharge.
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Re: Expected lifetime of OutBack Energy Cell

Post by Charliedavid » Thu Jan 28, 2016 1:17 am

Golf cart batteries have an average lifespan of four to five years, which is relatively short, but they are extremely durable and can be chronically undercharged and still function just fine. I use these only :mrgreen:

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Re: Expected lifetime of OutBack Energy Cell

Post by solartribe » Wed Mar 16, 2016 12:54 pm

so looking at the spec sheet http://www.outbackpower.com/downloads/d ... csheet.pdf
on the chart titled "EnergyCell RE vs EnergyCell NC Cycle life Improvement" -- it says " *assumes partial state of charge(Psoc) operation at 50%-80% "

so is the chart actually comparing apples to apples here?


looking at the 30% DOD bars, should I assume that a 200AH NC battery was discharged from (A.) 80%soc to 70%soc - or (B.) is it 80%soc to 50%soc?? i.e. (A.) 160AH - 140AH = 20AH discharged or (B.) 160AH - 100AH = 60AH discharged.

When looking at the EnergyCell RE, the interpretation of the results is more obvious. i.e. assuming a 200Ah RE battery is being used, the battery is being discharged from 100% soc to 70% soc. i.e. 200AH - 140AH = 60AH discharged

If it is scenario (B.) then we are comparing apples to apples... but the NC battery is actually being taken down to 50% DOD, not 30% DOD. And then the 80% DOD bar would actually mean that the NC battery is being discharge to 0%SOC and still getting around 800 cycles.

so which is it?

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Re: Expected lifetime of OutBack Energy Cell

Post by solartribe » Tue Apr 05, 2016 11:52 am

from what info i could gather, the graph note on the website should say " *Assumes partial state of charge (PSoC) operation at 30-80%. " not 50 to 80%.
The NC should go ~2600 cycles if cycled 50% from 80%SOC to 30%SOC.
The RE should go 1800 cycles if cycles 50% from 100%SOC to 50%SOC.

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Re: Expected lifetime of OutBack Energy Cell

Post by victorjesus » Sun Sep 01, 2019 1:35 pm

I have the NC200 but I'm not off grid. I am connected whit net metering and only use my batteries for backup when the grid goes down. What life spa should I expecte from my batteries?

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Re: Expected lifetime of OutBack Energy Cell

Post by raysun » Sun Sep 01, 2019 2:44 pm

I use this battery as well. Its chemistry is a bit harder to understand than a typical sealed lead-acid (SLA) battery. It is designed for partial state of charge applications and has its longest cycle life in that usage. As a fully-charged battery in cycle service, it acts more like a normal SLA battery. It is not designed for standby (float) applications, and will have its shortest service life in this usage.

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