[RE-wrenches] Sodium Ion Batteries

[Daryl DeJoy]

Found these available.
https://jmbatteries.com/products/wholesale-5kwh-all-in-one-sodium-ion-battery-pack-for-home-energy-48v-50ah-100ah-storage-solar-system-with-wall-mounted-battery?variant=50657798095121

On Sun, Oct 19, 2025, 1:19 PM Zeke Yewdall via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> I thought that Backwoods was selling a 48 volt Sodium Ion battery, but now
> I only see the 12 volt 100AH option.  They also discontinued their LTO
> options, due to poor adoption of them.  Despite everyone saying they wanted
> a coldweather lithium battery, very few actually wanted to buy them at the
> price they were.  I see so many people trying to use LFP in unheated
> situations and running into trouble though....
>
> If you want cells, there are quite a few Sodium Ion cells available on
> Aliexpress now.  A lot more than there was a year ago when I ordered some
> 10AH cylindrical to make a test battery from them.  And a fair number of 12
> volt options. But if you want complete 48 volt batteries, I'm not seeing
> any sources for those yet.  Currently price of the larger prismatic sodium
> ion cells seems similar range to the LFP cells, which is better than it was
> a year ago.
>
>
>
> --
> Zeke Yewdall
> PV Engineer
> NABCEP #031508-89
> zeke at darkforestsolar.com
> 303-523-3592
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