[michael_j_x]

If you are selling to the grid, there is probably over-supply. Prices are driven by supply and demand. If you want to avoid selling at lower prices and buying at higher, try and get a battery. Check ecoflow to get an idea of the costs.

[fiberhood]

Ecoflow is a good example of overpriced American tech. I payed $1500 for a 2 kWh battery. Our Fiberhood coop sells a 16kWh battery for $1800. Prices in China are lower still.

[cogman10]

Prices have been dropping like crazy as the various battery manufacturers have been competing with each other. They are all pretty similarly priced at this point.

A 2kwh ecoflow now costs $800. Still overpriced, but the gap is steadily narrowing.

Also, $1800 for 16kwh is a great price. That's $112/kWh. That's pretty close to raw cell costs.

Does the battery pack also come with charge circuitry, inverter, bms?

[morphle]

Of course it comes with our charge and discharge circuitry which is the inverter and also acts as the bms. As far as I am aware as a scientist, we are the only one in the world who charge each battery cell in parallel and slower or pulsed without maxing out or overheating, that's why we get 20000 discharge cycles versus the 5000-8000 the battery manufacture quotes.

[MichaelNolan]

> Fiberhood coop sells a 16kWh battery for $1800

Is that available in the US? Can you share a link? That’s an amazing deal. I’ve been recommending server rack batteries (5kwh for $750) to people but if there is something better I’d love to see it.

[morphle]

Price quote in this thread below, 10.680 kWh for $700.30, $230 for charge circuitry, electronics, we call Enernet Power router.

[morphle]

Fiberhood has an office in Tucson Arizona and will ship to the US if you want to to pay Trumps tariffs. I'm not aware of reasonably priced good battery or inverter makers in the US, besides ourselves (we are a non-profit so we are cheaper).

It is however not that simple to just give you a link, we need to hear from you for what electronics the software system needs to be fine-tuned. We need to understand what battery and electronics you need for each situation. As a scientist I know for a fact that no one in the world makes good battery systems yet, they are all wrongly designed (especially the ev and car batteries). You can easily spot that yourself, no one charges each individual battery cell individually in parallel. Everyone, including the scientists, charges battery packs in series and has battery management systems and ac-dc or dc-dc inverters that are not designed for the particular battery type and brand. Not a single one. If you ever find one that does charge and discharge each cell in parallel and slowly between 50% and 80%, please tell us and we'll tell the world. Right now only Fiberhood electronics charges cells correctly with specially made charger circuitry. The $0.50 to $2 networked printed circuit boards per battery cell we currently sell are the prototypes for the $0.10 battery charging microcontroller chips that we are making.

You can find dozens of Youtube influencers who test and or build cheap serially charged battery packs and your server rack batteries and inverter systems that you can find on professional China business directories, Tabao, Aliexpress and the like. But they are not exactly what you need and they damage your cells by charging them wrongly. No service, no warranties, no insurance, no buyers protection, buyer beware.

Be aware that ordering such systems directly in China is fraught with difficulties, its easy to lose your money.

[pkaye]

Ecoflow is actually a Chinese company.

[antonkochubey]

Ecoflow is overpriced crap for people who have no idea what ESS systems are like and so just buy a terrible product from a powerbank manufacturer.