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ANKER · ANKER SOLIX F3800 — WHOLE-HOME BACKUP
FRONT
BACK
PORTS
SCALE
IN USE
WattBunker Lab Score · 9.1 / 10
Capacity vs spec 97
Close to rated capacity in real-world testing
Recharge speed 94
Fast 0→80% on AC for its class
Inverter stability 91
Held nominal load without faults
Noise (1m) 87
Fan audible under high load
Build quality 89
Rigid chassis, ports recessed
★ Editor's Pick · Apr 2026 In Stock
Anker

Anker SOLIX F3800 — Whole-Home Backup

3.84 kWh LFP unit with 6,000W of 120V/240V output — enough to run a central AC, a dryer, or charge an EV directly off the NEMA 14-50 port. Stack six BP3800 packs for 26.9 kWh on one chassis, or chain a second F3800 to hit 12,000W and roughly two weeks of essentials. Anker's heaviest hitter for whole-home backup short of a permanent install.

4.1 (140) 4.1 out of 5 (140 reviews)
3,840
Wh
6,000
W AC
132.28
lb
3,000
cycles
  • 3,840 Wh LFP base, expandable to 26.9 kWh with 6 BP3800 packs; doubles to 53.8 kWh with a paired F3800
  • 120V/240V split-phase output via NEMA 14-50 and L14-30 — runs dryers, central AC, well pumps, electric ranges
  • Direct EV charging at 6,000W through the NEMA 14-50, no grounding adapter needed
  • Solar input via XT-60 (11–60V), up to 27A on 15–60V panels with firmware 2.1.1+
  • Smart Home Power Panel (sold separately) integrates it as automatic-transfer backup
  • InfiniPower architecture rated for 10-year daily cycling; 5-year warranty

The good and the bad

✓ Pros
  • True 240V split-phase output runs dryers, central AC, well pumps and EVs that no other portable in this price tier can touch
  • Modular path to 26.9 kWh on a single chassis — pay-as-you-grow without throwing the unit away
  • InfiniPower 10-year design life — same LFP architecture used in EV-class storage
  • Direct EV charging at 6 kW skips the typical $300+ grounding-adapter rabbit hole
✕ Cons
  • 132 lb dead weight — installation requires a hand truck, a friend, and a permanent home for the unit
  • When AC-recharging, only the 120V UPS outlet stays live — you can't drive 240V loads while charging
  • $1,799 deal pricing is volatile; expect creep back toward $2,599 when promotions roll off
  • Mixed early reviews flag charging failures and solar-panel compatibility issues outside Anker's ecosystem
Who this is for

If this is you, you're in the right place

  • Homeowner who wants whole-home backup without a permanent install

    NEMA 14-50 + L14-30 outlets at 6,000W run a dryer, central A/C, well pump or EV charger. Stack BP3800 packs to 26.9 kWh — two weeks of essentials.

  • EV owner facing PSPS or hurricane prep

    Direct 6 kW EV charging through the NEMA 14-50, no $300 grounding adapter rabbit hole. Get home, plug in, restart the next morning.

  • Off-grid cabin pre-permanent solar

    Solar input up to 27A on 15–60V panels with firmware 2.1.1+. InfiniPower 10-year design life means it'll outlive most contractor cabins.

Who should skip this

If this is you, keep shopping

  • Anyone moving the unit regularly

    132 lb of dead weight. This is install-and-forget hardware. If you need it portable, the F2000 or C2000 Gen 2 are the right calls.

  • Buyers who can wait for a wired-in standby

    For $7,000 all-in, a Generac 26kW with a 200A transfer switch covers more loads, runs unlimited on natural gas, and adds home value.

Real-world runtime

How long it lasts on real loads

Estimates apply 85% inverter efficiency to the rated capacity. Real-world numbers vary with temperature, battery age, and appliance duty cycle.

Load Watts Hours Note
Whole-home essentials (fridge + lights + modem + furnace blower) 800W 4.7 h base unit only; stack BP3800 packs to extend
EV Level 2 charging at 6 kW 6000W 0.6 h about 18 miles of range from a full base unit
Central A/C (3-ton, 4,500W) 4500W 0.85 h startup surge handled by 10,200W peak
Electric dryer 5500W 0.7 h roughly one full load

Full specs

Battery

Chemistry LFP
Capacity 3,840Wh
Cycles to 80% 3,000

Output

AC continuous 6,000W
AC surge 10,200W

Physical

Weight 132.28lb
Verdict
9.1
OUT OF 10 · BUY IT

Anker Anker SOLIX F3800 — Whole-Home Backup — the verdict

3.84 kWh LFP unit with 6,000W of 120V/240V output — enough to run a central AC, a dryer, or charge an EV directly off the NEMA 14-50 port. Stack six BP3800 packs for 26.9 kWh on one chassis, or chain a second F3800 to hit 12,000W and roughly two weeks of essentials. Anker's heaviest hitter for whole-home backup short of a permanent install.

Check on Amazon
Versus the competition

Where it wins and loses against the alternatives

EcoFlow
EcoFlow DELTA 2 Max
Price: $1899 Wh: 2,048 Lab: 9/10

EcoFlow caps at 2,400W and 120V only. F3800 is the only portable in this list with 240V split-phase output for dryers, central A/C and EVs.

See review →

FAQ

How long does the Anker SOLIX F3800 — Whole-Home Backup run a typical refrigerator?
A modern A++ fridge averages ~150 W. With 3840 Wh of usable battery, that's roughly 26 hours of continuous runtime before it depletes.
Is the Anker Anker SOLIX F3800 — Whole-Home Backup worth it versus competitors?
Anker competes directly with EcoFlow, Bluetti and Anker in this segment. The Lab Score of 9.1 suggests an excellent unit at this price point. Cross-shop on /compare with your second pick.
Is it LFP or NMC?
The Anker SOLIX F3800 — Whole-Home Backup uses LFP cells. LiFePO₄ delivers more cycles but weighs more.

Compared to alternatives