Welp, just went "all-in" on an Anker Solix E10 Home Backup system with whole house panel/transfer and 42kWh of battery instead of gambling on HIS

[Zaptor]

Stacked some crazy Earth Day deals and got a huge Anker E10 inverter and backup system for my house.

https://www.ankersolix.com/products/e10?o_c=&s_main=B17E114G&varId=60922387988810

I already have 24.32 kW of solar but this system allows for up to 9kW per inverter (max 3 inverters for 27kW, which is what I got) and up to 90kWh of battery stack (got about half that), plus integrated generator inlet.

My plan is to have the batteries back up the house for however long they will power it in conjunction with available solar, then if need be, kick on the Generac 22kW to charge the batteries back up, thereby running it as little as possible ($800 fill last time!).

Has anybody here used Anker before or have experience with the relatively new E10 system? Authorized installer said $4-5k since the Power Dock is basically a whole new 200A panel plus permits plus all heavy gauge wiring... this install is definitely above my pay grade, so no 'way around it'.

Thanks and best
-Zap

EDIT: BTW the fourth port on the front of the Power Dock is not useable by a battery stack, but is purported to be the expansion port for V2H fingers crossed!

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[tearitupsports]

Awesome! Looks like a great system!

 

[pirate4x4lance]

Mind telling us how much this cost? Would love something like that down the road.

 

[Bigisland Guy]

I have the older F3800 system that was self installed it works fine and the controlling app and software have been stable. I recommend you go to the Anker support group on Facebook to check out recent posts on the system. Also check with your local power company if they offer rebates for panel upgrades to go EV ready. Ours gave us $2.8k back on a $5.8k 200 amp upgrade on one site we have.

 

[Zaptor]

Mind telling us how much this cost? Would love something like that down the road.

I got all of the main pieces from offgridstores.com because they offer a 'workaround' for MAP pricing (Minimum Advertised Pricing) that many manufacturers dictate to protect margins; they offer a free club that you join, then you see greatly reduced pricing.

The kit I bought was $20,397 (sale price, $29,999 "MSRP") at Anker's site and showed the same price at offgridstores but was $16,xxx after signup. Install guy quoted $4-5k to fully integrate with 24.32kw solar and 22kw Generac so the savings from that site vs others basically pays for the install.

I also got 3x 400w portable solar panels from Anker for free with this Earth Day promotion, so I also bought an f3800 plus with a 4th 400w panel ($2300 at offgrid) for 1600w solar 4000 watt battery for my travel trailer I keep at our second property...

Please let me know if y'all have any other questions, install will probably happen in 3-4 weeks assuming the numbers are right

Cheers
Zap

 

[Zaptor]

I have the older F3800 system that was self installed it works fine and the controlling app and software have been stable. I recommend you go to the Anker support group on Facebook to check out recent posts on the system. Also check with your local power company if they offer rebates for panel upgrades to go EV ready. Ours gave us $2.8k back on a $5.8k 200 amp upgrade on one site we have.

Nice, I got the f3800 plus for my travel trailer, it arrived yesterday... I am glad you've had a good experience with the product, and yep, I joined the groups on FB
I will look into other rebates, but my provider, PGE said Anker is not a supported brand...
Cheers
Zap

 

[v2h8484]

Install guy quoted $4-5k to fully integrate with 24.32kw solar and 22kw Generac so the savings from that site vs others basically pays for the install.

Is your existing solar system grid-tied? If so, how does it integrate? AC coupling on-grid and off-grid (i.e. solar power during grid outages)?

 

[Zaptor]

Is your existing solar system grid-tied? If so, how does it integrate? AC coupling on-grid and off-grid (i.e. solar power during grid outages)?

Yes, I am grid-tied with 1:1 net metering and produce about 95% plus of what I need annually with my solar array. Batteries do not make sense on paper, given the 1:1, however during full-on outages, our 22kW Generac generator runs nonstop, and has used up to $800 of propane in a single outage event! These batteries will provide a fairly large buffer to eliminate generator runtime during shorter duration outages entirely and at least a significant buffer before generator startup during longer duration outages. My estimator/designer believes we can set it up so that the gen only kicks on to recharge the batteries in such cases, then shuts off again when the batteries are topped off... a lot of integrated pieces, so I hope it works!!!
-Zap
PS- Yes to AC-coupled, islanded and solar/battery during outages.

 

[RickLightning]

Yes, I am grid-tied with 1:1 net metering and produce about 95% plus of what I need annually with my solar array. Batteries do not make sense on paper, given the 1:1, however during full-on outages, our 22kW Generac generator runs nonstop, and has used up to $800 of propane in a single outage event! These batteries will provide a fairly large buffer to eliminate generator runtime during shorter duration outages entirely and at least a significant buffer before generator startup during longer duration outages. My estimator/designer believes we can set it up so that the gen only kicks on to recharge the batteries in such cases, then shuts off again when the batteries are topped off... a lot of integrated pieces, so I hope it works!!!
-Zap
PS- Yes to AC-coupled, islanded and solar/battery during outages.

Yeah, a lot of people forget the generator running costs. We have natural gas, so when the power goes out the generator supply is endless (assuming the pipeline is full), but it's coming at $1 CCF, from the same utility with the electricity out. I estimated it cost up to $50 per 24 hours.

 

[Athrun88]

Stacked some crazy Earth Day deals and got a huge Anker E10 inverter and backup system for my house.

https://www.ankersolix.com/products/e10?o_c=&s_main=B17E114G&varId=60922387988810

I already have 24.32 kW of solar but this system allows for up to 9kW per inverter (max 3 inverters for 27kW, which is what I got) and up to 90kWh of battery stack (got about half that), plus integrated generator inlet.

My plan is to have the batteries back up the house for however long they will power it in conjunction with available solar, then if need be, kick on the Generac 22kW to charge the batteries back up, thereby running it as little as possible ($800 fill last time!).

Has anybody here used Anker before or have experience with the relatively new E10 system? Authorized installer said $4-5k since the Power Dock is basically a whole new 200A panel plus permits plus all heavy gauge wiring... this install is definitely above my pay grade, so no 'way around it'.

Thanks and best
-Zap

EDIT: BTW the fourth port on the front of the Power Dock is not useable by a battery stack, but is purported to be the expansion port for V2H fingers crossed!

I've been looking at Anker as a possible whole home backup system but can never get a straight answer on this: Can the inverters be wired directly into my main panel so if the grid goes down, I can simply flip a physical switch, or enable on the app, to restore power from batteries?

I don't have solar (yet) and batteries would charge from ultra low times on the grid (for now) but I just want a system that will just tie into the main panel and not have to select 'critical circuits' to power. I currently have a 200A panel feeding a 100A subpanel that runs the house and 100A to two EVSEs at 50A each. Hypothetical battery backup system would only feed the 100A subpanel and not the EVSE circuits.

Thanks in advance!

 

[Zaptor]

I've been looking at Anker as a possible whole home backup system but can never get a straight answer on this: Can the inverters be wired directly into my main panel so if the grid goes down, I can simply flip a physical switch, or enable on the app, to restore power from batteries?

I don't have solar (yet) and batteries would charge from ultra low times on the grid (for now) but I just want a system that will just tie into the main panel and not have to select 'critical circuits' to power. I currently have a 200A panel feeding a 100A subpanel that runs the house and 100A to two EVSEs at 50A each. Hypothetical battery backup system would only feed the 100A subpanel and not the EVSE circuits.

Thanks in advance!

Hi,
I *think* but am *not positive* that their "Smart Inlet" in this kit: https://www.ankersolix.com/products/e10?o_c=&s_main=G17E1142&varId=61010423972170 would work in the manned you describe... I got their Power Dock which is the larger, whole-house version so that's the one I am much more familiar with, but I think the Smart Dock is manual and would do what you're wanting. Sorry that support didn't answer your questions, that's not a good look...
Cheers
Zap

 

[v2h8484]

Yes, I am grid-tied with 1:1 net metering and produce about 95% plus of what I need annually with my solar array. Batteries do not make sense on paper, given the 1:1, however during full-on outages, our 22kW Generac generator runs nonstop, and has used up to $800 of propane in a single outage event! These batteries will provide a fairly large buffer to eliminate generator runtime during shorter duration outages entirely and at least a significant buffer before generator startup during longer duration outages. My estimator/designer believes we can set it up so that the gen only kicks on to recharge the batteries in such cases, then shuts off again when the batteries are topped off... a lot of integrated pieces, so I hope it works!!!
-Zap
PS- Yes to AC-coupled, islanded and solar/battery during outages.

Yeah I also have 1:1 net metering as well so batteries make no financial sense. I did some research on the E10 and there is very little info on its capability to AC couple off-grid which is no so good. However, I did find a few reports that it kinda works until the batteries are full then shutdowns with errors because it has no frequency-shift capability. If so, I would only consider that partial support for off-grid AC coupling. I hope you can test and report your findings.

 

[v2h8484]

The E10 with AC coupled solar is fully supported by Delta even off grid. I had it working fine for months. It even would charge the truck with the excess.

For clarity, I was referring to the Anker Solix E10.

 

[Zaptor]

Yeah I also have 1:1 net metering as well so batteries make no financial sense. I did some research on the E10 and there is very little info on its capability to AC couple off-grid which is no so good. However, I did find a few reports that it kinda works until the batteries are full then shutdowns with errors because it has no frequency-shift capability. If so, I would only consider that partial support for off-grid AC coupling. I hope you can test and report your findings.

Will do, my installer has done over a dozen of these and seemed more than confident we could make it work. Big investment if it's just gonna throw codes... fingers crossed they have worked out the kinks, but also aware that I am (again) an early adopter...
-Zap

 

[chl]

Interesting. They specify LFP batteries - retaining 80% of capcity after 4000 cycles.

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11. How long does the Anker SOLIX E10 battery last?
E10 uses durable components and retains 80% of its capacity after 4,000 charge cycles.
----

Hopefully you could maximize the lifespan by using a 20%-80% charging range with their app and avoid extreme temperatures, using a low C rate (slow charging), etc. EDIT: with a periodic charge to 100% for BMS correction/calibration and cell balancing - but not letting it sit at 100% too long.

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A Practical Example: Calculating Lifespan
Let's consider a 10 kWh LFP battery. If it is fully discharged (100% DoD) every day, it might last for around 3,000 cycles, or just over 8 years. However, a more typical solar scenario involves using about 50% of the battery's capacity each day to cover evening loads. This gentler usage pattern could extend the cycle life to 8,000 EFC or more, potentially pushing the lifespan well beyond 20 years from a cycling perspective. For a deeper look at how these performance metrics interact, the Ultimate Reference for Solar Storage Performance provides detailed data and calculations that can help you model your own system's longevity.

The 10-Year Warranty: A Baseline Expectation
A 10-year warranty guaranteeing 70-80% capacity retention is the industry standard for a reason. It represents a conservative, bankable lifespan that manufacturers are confident their products can achieve under a wide range of conditions. As noted in the Electricity Storage Valuation Framework by IRENA, the need for reliable storage to accommodate solar PV is driving innovation and standardization. Policies like the U.S. Inflation Reduction Act further incentivize long-term investments in durable energy assets, as detailed in the IEA's World Energy Investment 2023 report, making a 10-year warranted life a solid financial baseline.

https://www.anernstore.com/blogs/diy-solar-guides/eol-lfp-solar-plus-storage

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Note that ANKER provides only a 5 year warranty on the batteries if I read that right and the batteries are in the "battery module":


15. What warranty does E10 come with?
The power module and battery module come with a 5-year standard warranty. Smart Inlet Box and Power Dock come with a 10-year standard warranty, while Smart Generator comes with a 3-year standard warranty.

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Achieving 15+ Years: The Path to Extended Life
Is it possible to go beyond the warranty? Absolutely. By implementing smart usage strategies, many LFP systems can realistically serve a home for 15 to 20 years before reaching the 80% SoH threshold. This involves:

• System Sizing: Installing a slightly larger battery than you need reduces the average daily DoD.
• Smart Configuration: Setting the SoC operating window to avoid extremes (e.g., 15% to 90%).
• Environmental Control: Ensuring the battery operates in a stable, cool environment.

Even after a battery reaches its defined EoL, it is far from worthless. A battery at 70% SoH can continue to operate for many more years, providing valuable, albeit reduced, capacity. This aligns with the principles of a circular economy, a concept highlighted in U.S. Department of Energy research, which projects a significant increase in EoL materials and emphasizes the importance of extending product life and finding secondary applications.

[Also from: "What Is a Realistic EoL for LFP in Solar-Plus-Storage?" https://www.anernstore.com/blogs/diy-solar-guides/eol-lfp-solar-plus-storage ]

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If you had the space for it, a much longer lasting battery type is the "vanadium flow" battery. They are less energy dense than LFP's for example, so take more space, but well suited for fixed location installations.

"Compared to lithium-ion batteries, vanadium redox flow batteries (VRB) are non-flammable, environmentally friendly, have estimated life-spans in excess of 10,000 cycles and maintain 90 per cent of their capacity over 20 years, thereby lowering the total cost of ownership. "

How they work:


One company with VFBs residential uses is StorEn (not sure if they are actually delivering systems yet):
https://www.storen.tech/residential
https://www.storen.tech/products

This article is from 2025 and has a comparison in price with the PowerWall and the StorEn batteries:

https://electrek.co/2025/07/09/the-...u-didnt-know-you-had-li-ion-or-vanadium-flow/

As the market develops (with data centers driving up utility prices in the near future) it may be the next big thing?

c

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