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Anker SOLIX F3800 Plus w/ Expansion Battery and 400W Solar Panel

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Original price $8,197.00
Original price $8,197.00 - Original price $8,197.00
Original price $8,197.00
Current price $4,498.99
$4,498.99 - $4,498.99
Current price $4,498.99
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7,680Wh | 6,000W | 400W Solar Included

Anker SOLIX F3800 Plus with Expansion Battery and 400W Solar Panel: Double Capacity Plus a Way to Refill It

This is the configuration that solves both halves of the backup problem at once. The BP3800 expansion battery doubles storage from 3,840 Wh to 7,680 Wh, which is where a refrigerator, a furnace blower, networking and lighting stop being a one-night proposition. The 400 W portable panel then puts energy back in, so a multi-day outage does not simply run the clock down.

There is a second reason the expansion battery matters here that is easy to miss. Anker rates generator bypass at 3,300 W for a single F3800 Plus, but 6,000 W once one or more expansion batteries are installed. So adding the battery nearly doubles what a 240 V generator can push through the unit, which changes the arithmetic on a long winter outage.

Anker SOLIX F3800 Plus with BP3800 expansion battery and 400W solar panel
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Why the F3800 Plus

7,680 Wh, Not 3,840

The BP3800 doubles storage out of the box. Five more can be added for 26.9 kWh on a single unit, so this is a starting point rather than a ceiling.

The Battery Unlocks 6,000 W Generator Bypass

Anker rates bypass at 3,300 W for a bare F3800 Plus and 6,000 W with one or more expansion batteries installed. This configuration gets you the higher figure.

A Panel in the Box

The 400 W portable panel means the system arrives able to recharge itself rather than needing a second order before it is useful off-grid.

6,000 W With Both Voltages From One Box

A built-in NEMA L14-30 delivers 120 V and 240 V from a single unit, so a well pump or a dryer works without pairing two power stations. Two units in parallel reach 12,000 W.

3,200 W of Solar on a 165 V Window

Dual MPPTs accepting 11 to 165 V at 17 A each. The wide voltage range is what lets you series rigid panels instead of running many parallel strings.

3.84 kWh to 53.8 kWh

Six BP3800 expansion batteries take a single unit to 26.9 kWh. Two units with twelve batteries reach 53.8 kWh, which is weeks rather than days.


What's Included

Anker SOLIX F3800 Plus with included components

In the Box

  • Anker SOLIX F3800 Plus Portable Power Station, 3,840 Wh
  • Anker SOLIX BP3800 Expansion Battery, 3,840 Wh
  • Anker SOLIX 400W Portable Solar Panel
  • AC Charging Cable
  • Battery connection cable and solar charging cables
  • Quick Start Guide and Safety Documentation

A single 400 W panel is a daily top-up rather than a full refill; the F3800 Plus accepts up to 3,200 W of solar across its two MPPT inputs, so there is considerable headroom to add panels later. Connecting the system to household circuits needs a transfer switch, an inlet box or a Home Power Panel, none of which are included here.


Anker SOLIX F3800 Plus Power Station

Figures below are from Anker's published tech specs for the F3800 Plus.

Capacity 3,840 Wh
Battery Chemistry LFP, 3,000+ cycles
Expandable Capacity Up to 6 × BP3800 Expansion Batteries (3,840 Wh each)
Maximum System Capacity Up to 26.9 kWh single unit, 53.8 kWh with two units
AC Output Power (Total) 6,000 W max
AC Output (NEMA 5-20R) 120 V, 20 A max, 60 Hz, 2,400 W max
AC Output (NEMA L14-30R) 120 V / 240 V, 25 A max, 60 Hz, 6,000 W max
AC Output (NEMA TT-30R) 120 V, 3,000 W max
Car Charger Output 12 V, 10 A
USB-A Output 5 V, 2.4 A, 12 W max per port
USB-C Output Up to 20 V / 5 A, 100 W max per port
Dimensions (L × W × H) 27.6 × 15.3 × 15.6 in, including wheels
Net Weight 136.7 lb
Warranty 5 Years

Input and Charging

Solar Panel Input 11 to 165 V, 17 A max, 1,600 W max per input
Maximum Total Solar Input 3,200 W across 2 MPPT inputs
AC Input 120 V, 15 A max (under 3 hr) / 12 A max continuous, 60 Hz
AC Input Power, Charging 1,800 W max
AC Input Power, Bypass Mode 1,440 W max
Home Power Panel and Generator Adapter Port 6,000 W max AC in and out, 120 V / 240 V
Anker SOLIX Generator Port 60 V max, 120 A max
Generator Bypass 3,300 W single unit, 6,000 W with one or more expansion batteries

Anker notes that product specifications are subject to change without notice. Call us at (303) 876-7654 if a figure here is decisive for your installation and we will confirm it against the current datasheet.

Documentation & Downloads


5-Year Anker Warranty

Registered through Anker and honored by us as an authorized dealer. Register the serial number at purchase so a claim is never held up by paperwork.

Lowest Price Guarantee

Find it cheaper at another authorized Anker SOLIX dealer? Call us before you order and we will take care of you.

Help From People Who Sell These Every Day

Call (303) 876-7654. We would rather spend ten minutes sizing your system correctly than process a return later.

Anker SOLIX F3800 Plus with Expansion Battery and 400W Solar Panel: Double Capacity Plus a Way to Refill It: Frequently Asked Questions

Why does the expansion battery affect generator charging?
Anker rates generator bypass at 3,300 W for a single F3800 Plus on its own, and 6,000 W once one or more expansion batteries are connected. If you plan to run a 240 V generator during long outages, that difference is substantial, and it is a reason to buy the battery even if you do not need the extra storage.
Is one 400 W panel enough?
For topping up light daily use, yes. For refilling 7,680 Wh in a day, no. The F3800 Plus takes up to 3,200 W of solar across two MPPT inputs, so you have room for eight times this panel. Start here and add as your needs become clear, or call us at (303) 876-7654 and we will size the array against your actual consumption.
How is the F3800 Plus different from the original F3800?
Three things. Solar input goes from 2,400 W to 3,200 W, on a much wider 11 to 165 V dual MPPT window instead of 11 to 60 V, which is what allows series-wired rigid arrays. It adds true generator bypass, which the F3800 does not have, at up to 6,000 W on 240 V. And the special AC sockets differ: the Plus has a TT-30 rated 3,000 W plus an L14-30 rated 6,000 W, where the F3800 has a NEMA 14-50 and an L14-30. Capacity is the same 3,840 Wh on both.
How far can I expand it?
Up to six BP3800 expansion batteries on a single F3800 Plus for 26.9 kWh. Pair two units with twelve batteries and you reach 53.8 kWh. Anker confirms that an F3800 and an F3800 Plus can be used together on a Double Power Hub or a Home Power Panel, so an existing F3800 owner can add a Plus rather than starting over.
Can I run my whole house on it?
Depends on the house and how it is connected. 6,000 W with 120 V and 240 V from a single unit covers most essential circuits including a well pump or a furnace. Two units in parallel give 12,000 W, which reaches most homes outside of central air conditioning on a hot day. The connection method matters as much as the wattage, which is where the Home Power Panel, a transfer switch or an inlet box comes in.
What does the generator bypass actually do?
It lets a 240 V generator pass power straight through to your loads while also charging the battery, at up to 6,000 W. Anker rates a full recharge from a generator at about 1.5 hours and claims up to 50 percent better fuel efficiency than running a generator continuously. Note that the Anker SOLIX Generator Adapter is required and bypass supports a single F3800 Plus unit only.
Which output ports work in which situation?
This catches people out, so it is worth reading Anker's port conditions before you buy. With no AC input connected, all ports work. Plugged into a 120 V wall outlet, only the TT-30R and the three leftmost UPS-backed NEMA 5-20R ports are usable, with a 1,440 W bypass limit, and the L14-30R is not available. With a 240 V generator connected, the TT-30R gives 3,000 W and the L14-30R gives 6,000 W, but the NEMA 5-20R ports are not available. Call us at (303) 876-7654 if that decides your setup and we will walk through your specific case.
Can I charge my EV with it?
Yes. Double-press the AC outlet button to enable EV mode and set the vehicle charging rate below 25 A. No adapter is needed; you plug the EV's own cable in. It is a range top-up rather than a full charge, since 3,840 Wh is a small fraction of a car battery.
Can rooftop solar recharge it during an outage through the Home Power Panel?
No, and this surprises people. During an outage you connect panels directly to the F3800 Plus solar inputs at 11 to 165 V. Exceeding 165 V will damage those ports, so calculate string voltage at your coldest expected temperature before connecting.
What is Storm Guard?
The system watches for severe weather alerts and charges automatically ahead of the storm, so the pack is full rather than half full when the outage arrives. Note that Storm Guard requires the Anker SOLIX Home Power Panel.