New Sodium Ion battery Victron support

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adambant asked Nov 28, '23

New Sodium Ion battery Victron support

Sodium Ion batteries are starting to hit the market. They promise much cheaper per kw/Hr Than current Lithium Ion batteries. Much wider charging and discharging ranges ( from -40C to 55C), and higher charge/discharge rates. And literally bulletproof and firepro Has any testing been done with Victron equipment on the support of the voltage levels, charge rates, absorption, flat and bulk levels etc?

battery charging battery battery capacity battery manufature

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Matthias Lange - DE answered · Nov 28, 2023 at 04:34 PM

Almost all Victron products have a wide range for configuring the voltages.

Just take a look at the datasheets and use the feature of VE.config to simulate a device to see what you can do.

https://www.victronenergy.com/live/battery_compatibility:start#general_information_about_batteries_that_have_not_been_tested_by_victron

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Modifications Space

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Answer 1 · 2023-11-28T16:53:22Z

adambant answered · Nov 28, 2023 at 04:53 PM

Yea I realize that I can go into expert mode on my MPPT and tweak things. But also I like that I can for instance select the "LiFePO4" setting for the battery as a starting point. Just curious if NaIon will be added to the list with the others already there.

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Answer 2 · 2023-11-28T17:10:39Z

snoobler answered · Nov 28, 2023 at 05:10 PM

I don't think it's reasonable to have equipment list every single type of chemistry. LTO has been around for some time, but I'm not seeing it included. 3.7V NCA/NMC/LMO chemistry isn't included either, and it's been around the longest.

While there is nothing intrinsically wrong with Victron's LFP settings, they aren't optimal for all cases. Different applications and desired outcomes may mandate altering presets. IMHO, no user/installer should simply rely on presets. They should know their battery/systems and make an informed decision.

If Na-Ion becomes the gold standard, sure... but that remains to be seen.

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adambant commented · Nov 28, 2023 at 05:25 PM

I will let you know. :-) I will probably build my next battery pack from them. If the cost advantages (2-3x cheaper) hold up, then I think it will be a game changer. Only downside I see is the energy density is a tad lower than current (and mature tech already) LiFePO4 batteries. But for stationary power applications, and that combined with the big additional charge/discharge temp range, and of course the lower prices, I think once they get into mass production they will be the new gold standard. LTO fails in this regard due to the much higher cost per kw/Hr, however their temp ranges offset that somewhat if you really need a harsh environment battery.

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snoobler adambant commented · Nov 28, 2023 at 05:59 PM

Please do! :)

A quick Google search yields Na-Ion cells at 3-4X the price of LFP per kWh. I don't think we're going to see costs below LFP for several years. I'd love to be wrong!

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Answer 3 · 2023-11-28T19:00:45Z

josecokem answered · Nov 28, 2023 at 07:00 PM

I have been checking voltages of victron multiplus II that go from 36 low and 56 top aprox so my view is that you cannot use properly sodium because this batteries go 2,4 low to 4 top so is not possible to make a sum of cells and be able to use the 100% of the battery. I am missing something?

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snoobler commented · Nov 28, 2023 at 09:46 PM

According to the manual, 48V units go from 38-66V:

https://www.victronenergy.com/upload/documents/MultiPlus-II_3kVA_5kVA_120V/32424-MultiPlus-II___Quattro-II_120V-230V-pdf-en.pdf

16S would run 40-64V

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josecokem snoobler commented · Nov 29, 2023 at 06:14 AM

really appreciate your reply, yes but this is for the inverter, the charger range of my multiplus II peaks at 57,6 in the pdf manual. So this means that I could charge the battery via solar mppt at their full range and convert to AC it in full range BUT AC charge is limited to 57,6?

thank you.

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snoobler josecokem commented · Dec 01, 2023 at 12:34 AM

Nope. VE.Bus 48V inverters can AC charge at 64V. The manual lists the defaults, not the maximum.

If you ever have a question about the operating limits of a Victron device, use the demo library in VictronConnect.

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