this post was submitted on 28 Jul 2023

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Australian start-up launches new 5.12kWh home battery (onestepoffthegrid.com.au)

submitted 1 year ago by badcommandorfilename to c/[email protected]

24 comments fedilink hide all child comments

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[–] [email protected] 5 points 1 year ago (2 children)

No price range?

[+] [email protected] -7 points 1 year ago* (last edited 1 year ago) (2 children)

Shhhhhhh!

Still funny to me they have batteries rated at 48V but, ummm... 240V 🤷‍♂️

[–] [email protected] 11 points 1 year ago (1 children)

The battery is 48V DC. It uses an inverter to produce 240V AC, similar to solar installations.

[–] [email protected] -1 points 1 year ago* (last edited 1 year ago) (1 children)

Yeah, but does that mean a 48V 5.12kWh would be (roughly) equivalent to a 240V 1 kWh battery?

Sorry, I'm only kinda familiar with power tools and bikes etc where the motor/output is rated the same as the battery itself....

meh, I guess the volts don't matter. All the other batteries are rated at Ah, not kWh....

[–] [email protected] -3 points 1 year ago (1 children)

There's a certain knowledge threshold on any given topic, below which your participation just makes you look dumb.

[–] [email protected] 10 points 1 year ago* (last edited 1 year ago)

Thanks, bro. That's a great comment to encourage participation.

I'd hate to learn anything. And your comment achieved that.

Have an upvote and hope you have a great day!

[–] [email protected] 2 points 1 year ago* (last edited 1 year ago) (1 children)

48v? i don't get it?

[–] [email protected] 2 points 1 year ago

48V DC is the standard voltage in a bunch of industrial applications. At work I’ve installed sites with over 300kWh of storage, all at 48VDC. Back in the day it was strings of 24x 2V lead-acid batteries. Recently the industry is moving towards cells with 14x - 16x lithium cells, depending on the exact lithium chemistry.

You need an inverter to go from DC to AC anyway, changing the voltage at the same time doesn’t add much to the complexity. Some systems use 400V, but the actually batteries those systems use are usually 8x 48V batteries connected in series.

[–] [email protected] 1 points 1 year ago

Australia already has these guys making zinc-bromine flow batteries. It’s awesome to see more.

https://redflow.com/

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