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udidwht

Seattle

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Posted: 12/20/21 07:52pm Link  |  Quote  |  Print  |  Notify Moderator

https://www.tweaktown.com/news/83512/bluetti-unveils-next-gen-power-na-battery-packs-solar-generators/index.html?utm_source=newsletter&utm_campaign=newsletter


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fj12ryder

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Posted: 12/20/21 08:30pm Link  |  Quote  |  Print  |  Notify Moderator

It's a battery, recharged by solar panels(not included and sold separately). [emoticon]


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udidwht

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Posted: 12/20/21 10:20pm Link  |  Quote  |  Print  |  Notify Moderator

What caught my eye...

"This could power an entire house with multiple people living inside of it, and a plethora of devices, for days and days on end. A true game-changer for billions of people on the planet living with unstable power grids, natural disasters knocking down power systems, etc"

valhalla360

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Posted: 12/20/21 11:57pm Link  |  Quote  |  Print  |  Notify Moderator

udidwht wrote:

What caught my eye...

"This could power an entire house with multiple people living inside of it, and a plethora of devices, for days and days on end. A true game-changer for billions of people on the planet living with unstable power grids, natural disasters knocking down power systems, etc"


You will note, the left out the part of what the cost of a stand alone off grid house system that provides on demand power...would COST.

Nothing special about solar systems with battery backup, particularly in a stationary house scenario. Used in moderation, they can be helpful. Trying to replace more than about 10% of the grid and they get expensive real quick.


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2112

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Posted: 12/21/21 03:14am Link  |  Quote  |  Print  |  Notify Moderator

We were discussing This One last week. This battery pack can be quick charged at an EV charge station.

That thread went political and was deleted.

I could mount this 100lb device on its side in my FW basement and have the equivalent Ah of six 6V GC6 batteries with a 4kw PSW inverter.


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udidwht

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Posted: 12/21/21 03:33am Link  |  Quote  |  Print  |  Notify Moderator

I was given thought of a replacement for a gas generator....

1. Silent operation
2. No gas to burn
3. Lasts several days (one I linked)
4. Recharges via solar panel/s attached to roof or perhaps portable panels.
5. Low maintenance

Yes cost is a factor but so is replacing a gas generator such as an Onan 4K.

valhalla360

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Posted: 12/21/21 04:19am Link  |  Quote  |  Print  |  Notify Moderator

udidwht wrote:

I was given thought of a replacement for a gas generator....

1. Silent operation
2. No gas to burn
3. Lasts several days (one I linked)
4. Recharges via solar panel/s attached to roof or perhaps portable panels.
5. Low maintenance

Yes cost is a factor but so is replacing a gas generator such as an Onan 4K.


What are you trying to accomplish?

If you have modest energy usage, there are plenty of solar/battery/inverter systems available or it's not that hard to put one together yourself. And that's fine if that's all you need. You can do several days. Heck, a lot of people do several days with good old fashioned lead acid golf cart batteries.

If you have more substantial power needs...such as running the air/con, that's when people typically jump up to a generator. These systems won't compare well to an actual generator. If you need air/con, Let's say under modest conditions, it may have a 50% duty cycle and draw an average of 1.2kw. The 12kwh battery bank will last you about 20hr (not several days). Actually less as you don't want to run them down to 0%, so probably more like 16-18hr.

If it's hot and the air/con runs continuously, figure maybe half that. This assumes no other electrical loads.

If you want to replace say 10kwh in a day, you are going to need around 2500w (nominal rating) of solar panels. (To estimate kwh production, around 4 times the nominal rating gives you a baseline for what you can expect.) That's a lot of panels.

Plus SI batteries are larger and weigh more per kwh of storage compared to lithium. A key consideration on an RV.

Unfortunately the advertisement/article doesn't provide much of anything in terms of specifications but it sure doesn't look like a great option.

2112

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Posted: 12/21/21 04:21am Link  |  Quote  |  Print  |  Notify Moderator

It's certainly doable with the 12.6kw option as long as you don't run the AC much and have plenty of solar. And plenty of solar friendly days. The AC would run about 6 hours on 12.6kw. But then your batteries are depleted.

I don't know what it would take to charge while driving. You might have to give that up.

Dusty R

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Posted: 12/21/21 06:24am Link  |  Quote  |  Print  |  Notify Moderator

2112 wrote:

It's certainly doable with the 12.6kw option as long as you don't run the AC much and have plenty of solar. And plenty of solar friendly days. The AC would run about 6 hours on 12.6kw. But then your batteries are depleted.

I don't know what it would take to charge while driving. You might have to give that up.



How much solar and how many solar friendly days, is something you never see talked about.
I've learned that Michigan is ranked 47th of the 48 continental states. Therefor I would think that solar power in Mi. is not very good/practical. Yet it is being pushed here. Why cover up good farm land?

theoldwizard1

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Posted: 12/21/21 07:46am Link  |  Quote  |  Print  |  Notify Moderator

I did not see it mentioned but to get 240V for running things like well pumps, you need 2 units plus a special adapter.

I am not sure if this is a good idea or not, but being able to do a fast charge at an RV charge station is unique. Of course, if you have no power, will the charge station have power ?

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