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frontpageMinhTrinh posted Jan 26, 2026 06:51 PM
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frontpageMinhTrinh posted Jan 26, 2026 06:51 PM

Costco Members: Anker SOLIX F3800 Smart Whole-Home Backup Power Kit

+ Free Shipping

$8,000

$9,999

19% off
Costco Wholesale
22 Comments 10,417 Views
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Deal Details
Anker SOLIX via Costco Wholesale has for its Members: Anker SOLIX F3800 Smart Whole-Home Backup Power Kit on sale for $7999.99. Shipping is free.

Thanks to community member MinhTrinh for sharing this deal.

Deal Instructions:
  1. Go to Anker SOLIX via Costco page
  2. Click on the 'Visit Anker SOLIX' button
  3. Sign in to Costco (must have membership)
  4. Go to the Anker SOLIX F3800 Smart Whole-Home Backup Power Kit product page
  5. Add to cart and proceed to checkout
  6. The price should be $7999.99 + free shipping
Kit Includes:
  • 2x Anker SOLIX F3800 All-in-One Home Backup Power Station(2x 3840Wh)
  • 2x Anker SOLIX BP3800 Expansion Battery (2x 3840Wh)
  • 2x Anker SOLIX PS400 Solar Panels (2x 400W)
  • 1x Anker SOLIX Home Power Panel
  • 1x 12-Circuit Backup Load Center (Sub Panel)

Editor's Notes

Written by qwikwit | Staff
  • Valid through 2/01/26. While Supplies Last.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by MinhTrinh
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Anker SOLIX via Costco Wholesale has for its Members: Anker SOLIX F3800 Smart Whole-Home Backup Power Kit on sale for $7999.99. Shipping is free.

Thanks to community member MinhTrinh for sharing this deal.

Deal Instructions:
  1. Go to Anker SOLIX via Costco page
  2. Click on the 'Visit Anker SOLIX' button
  3. Sign in to Costco (must have membership)
  4. Go to the Anker SOLIX F3800 Smart Whole-Home Backup Power Kit product page
  5. Add to cart and proceed to checkout
  6. The price should be $7999.99 + free shipping
Kit Includes:
  • 2x Anker SOLIX F3800 All-in-One Home Backup Power Station(2x 3840Wh)
  • 2x Anker SOLIX BP3800 Expansion Battery (2x 3840Wh)
  • 2x Anker SOLIX PS400 Solar Panels (2x 400W)
  • 1x Anker SOLIX Home Power Panel
  • 1x 12-Circuit Backup Load Center (Sub Panel)

Editor's Notes

Written by qwikwit | Staff
  • Valid through 2/01/26. While Supplies Last.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by MinhTrinh

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22 Comments

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Jan 26, 2026 07:28 PM
2 Posts
Joined Oct 2022
Havx027Jan 26, 2026 07:28 PM
2 Posts
Hmm... this setup or the newer E10 battery system coming out? We have existing solar, but no battery backups yet. I'm looking to add some. Any feedback would be appreciated!
Jan 26, 2026 07:46 PM
374 Posts
Joined Nov 2009
dealsninjaz401Jan 26, 2026 07:46 PM
374 Posts
Think the F3800 Plus would be a better bet for future proofing, or the E10 coming out. Wonder how much getting a contractor out to install the panels would be, though.
Jan 26, 2026 07:56 PM
2,203 Posts
Joined Sep 2005
spamJan 26, 2026 07:56 PM
2,203 Posts
I have solar as well, but looking for just batteries, not to go off the grid, but to power the home during peak electricity rate times (4 - 9 pm). Does any of these work? What all do I need to do?

TIA
Jan 26, 2026 08:14 PM
75 Posts
Joined Sep 2018
TenzingSJan 26, 2026 08:14 PM
75 Posts
Quote from Havx027 :
Hmm... this setup or the newer E10 battery system coming out? We have existing solar, but no battery backups yet. I'm looking to add some. Any feedback would be appreciated!
If you have existing solar i would get E10. This system really i see it mostly for Whole home UPS for couple hours to day.
Jan 26, 2026 08:15 PM
75 Posts
Joined Sep 2018
TenzingSJan 26, 2026 08:15 PM
75 Posts
Quote from spam :
I have solar as well, but looking for just batteries, not to go off the grid, but to power the home during peak electricity rate times (4 - 9 pm). Does any of these work? What all do I need to do?TIA
E10 is probably still better option. These are nice but mostly more "portable" option made to be home backup. Whereas E10 is more home backup first
Jan 26, 2026 08:33 PM
2 Posts
Joined Oct 2022
Havx027Jan 26, 2026 08:33 PM
2 Posts
Quote from TenzingS :
If you have existing solar i would get E10. This system really i see it mostly for Whole home UPS for couple hours to day.
Thnx Tenzing!
Jan 26, 2026 08:37 PM
1,351 Posts
Joined May 2005
rsprayJan 26, 2026 08:37 PM
1,351 Posts
Quote from TenzingS :
If you have existing solar i would get E10. This system really i see it mostly for Whole home UPS for couple hours to day.
I have existing grid-tied solar. I've been looking at E10, but can't figure out if there's an easy (i.e. no electrician, permits) to connect it for back-up and peak-shaving / arbitrage. Any suggestions?

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Jan 26, 2026 09:32 PM
44 Posts
Joined Nov 2019
BlueGuide524Jan 26, 2026 09:32 PM
44 Posts
Quote from rspray :
I have existing grid-tied solar. I've been looking at E10, but can't figure out if there's an easy (i.e. no electrician, permits) to connect it for back-up and peak-shaving / arbitrage. Any suggestions?
My understanding for whole house backup is you need an electrician to install a transfer switch and plug into that. The other option would be to plug items directly into the power station.
Jan 26, 2026 11:52 PM
2,360 Posts
Joined Sep 2006
hpark21Jan 26, 2026 11:52 PM
2,360 Posts
Quote from rspray :
I have existing grid-tied solar. I've been looking at E10, but can't figure out if there's an easy (i.e. no electrician, permits) to connect it for back-up and peak-shaving / arbitrage. Any suggestions?
Depending on your current setup (what kind of equipment do you have? with right solar/hybrid inverter, it just may be as easy as connect the battery into the inverter and configure the inverter to let it know there is battery tied into it and be done). Now, for peak shaving, same thing, if your inverter can schedule "priority" timing then you may be able to schedule "battery/solar" priority during the expensive times and have battery charged up over night from solar/grid. This MAY not require that you pull permit. Now, if you need more extensive work to make it work, then you may need to pull permit.
If you know what you are doing and if your township/county has resident electrical inspector on hand, then I say pull permit, do the work, get it signed off by the inspector and be done. BUT, my township does not have resident inspector which means, I have to hire an inspector to review work and NONE of 5 that I contacted in my area would even respond to me regarding inspection quote unfortunately. They all seem to only cater to an licensed electrician which makes it very hard to DIY permit required work.
Yesterday 12:07 AM
75 Posts
Joined Sep 2018
TenzingSYesterday 12:07 AM
75 Posts
Quote from rspray :
I have existing grid-tied solar. I've been looking at E10, but can't figure out if there's an easy (i.e. no electrician, permits) to connect it for back-up and peak-shaving / arbitrage. Any suggestions?
You can do it with no permit etc, but since the gateway panel i am recommending for your case is upstream of main panel recommend an electrician do it. the inlet box they sell is completely DIY since it is in the main panel but you wont be able to montor and bring excess solar to the battery bank. I do recommend since you have grid ties solar you get the new smart gateway panel. So what u do i bring the solar panel breakr that is going to your main panel and bring it into gateway panel. Thus you can keep selling energy to grid and excess solar can charge you battery bank.
Last edited by TenzingS January 26, 2026 at 05:10 PM.
Yesterday 12:15 AM
4,612 Posts
Joined Jun 2006
chuckdYesterday 12:15 AM
4,612 Posts
At some point, price wise, doesn't it become more worth it to simply buy an EV? Not being critical, but I'm a situation where I could either buy these and seldom if ever use them or get an Optiq or something and use it every day. $9k would buy a good generator proper, or be 20% of a car.
1
1
Yesterday 02:09 PM
1,574 Posts
Joined Feb 2007
coltrane69Yesterday 02:09 PM
1,574 Posts
Quote from chuckd :
At some point, price wise, doesn't it become more worth it to simply buy an EV? Not being critical, but I'm a situation where I could either buy these and seldom if ever use them or get an Optiq or something and use it every day. $9k would buy a good generator proper, or be 20% of a car.
That's actually a very interesting question. 15kwh and a couple 400w solar panels for 8k, or an 100kwh EV for 40 or 50k? It's obviously an over simplistic statement, but why not? I'm sure the EV would have to be designed for a powerwall like feed, and would have to be plugged in almost constantly to an home electrical Inverter/solar setup that would be expensive to design an implement. But why not?
Yesterday 02:36 PM
4,612 Posts
Joined Jun 2006
chuckdYesterday 02:36 PM
4,612 Posts
Quote from coltrane69 :
That's actually a very interesting question. 15kwh and a couple 400w solar panels for 8k, or an 100kwh EV for 40 or 50k? It's obviously an over simplistic statement, but why not? I'm sure the EV would have to be designed for a powerwall like feed, and would have to be plugged in almost constantly to an home electrical Inverter/solar setup that would be expensive to design an implement. But why not?
With all the deals and lease credits, plus residuals on used ones being pretty low, I think that is the way I'm going to go. These batteries would likely have next to zero resale value, but at least a car I can get a new one every 4 years or so and take advantage of the technology improvements, rather than being stuck with something potentially antiquated. Obviosuly two very different things, apples and oranges, but I think rather than spending $10k up front, I can get a low interest loan on a vehicle. I was considering an EV anyway though. My friend in Nashville is running his house off of one of his cars as we speak. Then he has a hybird F150 he can plug into for odds and ends after that. Either way, I don't know that batteries or a fully electric car are a replacement for a gas generator if wanting to be prepped for days and not just a day.
Yesterday 07:50 PM
1,017 Posts
Joined Mar 2004
netstrollerYesterday 07:50 PM
1,017 Posts
Quote from chuckd :
With all the deals and lease credits, plus residuals on used ones being pretty low, I think that is the way I'm going to go. These batteries would likely have next to zero resale value, but at least a car I can get a new one every 4 years or so and take advantage of the technology improvements, rather than being stuck with something potentially antiquated. Obviosuly two very different things, apples and oranges, but I think rather than spending $10k up front, I can get a low interest loan on a vehicle. I was considering an EV anyway though. My friend in Nashville is running his house off of one of his cars as we speak. Then he has a hybird F150 he can plug into for odds and ends after that. Either way, I don't know that batteries or a fully electric car are a replacement for a gas generator if wanting to be prepped for days and not just a day.
I've started looking into this, will have to see which car can be adapted easily for this and priced under around $40K. And my location is not solar friendly so I need a lot of capacity for it to be useful since my typical load is over 900 watts without the AC or heat running. I'd go with a hybrid rather than full EV just so I can power with gasoline if the power outage outlasts the battery capacity. Another car advantage is replacement parts should be available longer and more easily--basically more serviceable. Who knows how long we can get parts for these portable battery systems that's changing so quickly in the last few years.

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Today 04:36 PM
1,574 Posts
Joined Feb 2007
coltrane69Today 04:36 PM
1,574 Posts
Quote from chuckd :
With all the deals and lease credits, plus residuals on used ones being pretty low, I think that is the way I'm going to go. These batteries would likely have next to zero resale value, but at least a car I can get a new one every 4 years or so and take advantage of the technology improvements, rather than being stuck with something potentially antiquated. Obviosuly two very different things, apples and oranges, but I think rather than spending $10k up front, I can get a low interest loan on a vehicle. I was considering an EV anyway though. My friend in Nashville is running his house off of one of his cars as we speak. Then he has a hybird F150 he can plug into for odds and ends after that. Either way, I don't know that batteries or a fully electric car are a replacement for a gas generator if wanting to be prepped for days and not just a day.
https://www.reddit.com/r/electric...nt_backup/
I am currently leasing a no frills Ford Lightning XLT EV and absolutely love it. I just couldn't pass up the deal with all the rebates and incentives, but never even considered the possibility or the capability of using it as a dual use, home battery backup system. Very intriguing.

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