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The Anker SOLIX F3800 Plus + 50A Transfer Switch is a seamless whole-home backup solution, designed to keep your essential appliances running during power outages. With 3,840Wh of energy storage, 6,000W AC output, and 120V/240V split-phase capability, this system ensures power reliability for homes, RVs, and off-grid applications. The included 50A transfer switch enables automatic backup power switching, eliminating downtime and ensuring uninterrupted energy during blackouts.

Massive 3,840Wh Capacity – The Anker SOLIX F3800 Plus provides ample power for home appliances, backup loads, and off-grid applications.
6,000W AC Output (12,000W Surge) – Supports 120V and 240V appliances, perfect for HVAC systems, well pumps, and heavy-duty tools.
Automatic Backup with 50A Transfer Switch – Instantly switches to battery power when an outage is detected, ensuring uninterrupted electricity.
Solar, Generator, and AC Charging –
Long-Lasting LiFePO₄ Battery – With 3,000+ charge cycles, this system provides over a decade of reliable performance.
Smart Power Optimization – The Anker App allows remote monitoring, energy management, and smart scheduling.
Portable & Scalable – Expandable with BP3800 expansion batteries, increasing storage capacity up to 53.8kWh.

Whole-home backup power with automatic transfer switching
Powering high-wattage appliances such as well pumps, air conditioners, and refrigerators
Off-grid and emergency preparedness
Reducing electricity costs by storing and using solar energy
Portable power for RVs, outdoor workstations, and job sites



Everything you need is included with your product.

| Specifications | Details |
| Battery Type | LiFePO4 Cell |
| Cell Part Number | 32140FS-15000mAh |
| Charging Cycle | 3000+ (to 80%) |
| Cell Capacity | 51.2Vdc 75Ah/3840Wh |
| Specifications | Details |
| AC Input | 120V~ 15A Max (< 3hrs) / 12A Max (continuous), 60Hz, L+N+PE |
| AC Input Power (Charging) | 1800W Max |
| AC Input Power (Bypass Mode) | 1440W Max |
| Solar Panel Input 1 | 11-165V - 17A Max (1600W Max Each) |
| Solar Panel Input 2 | 11-165V - 17A Max (1600W Max Each) |
| DC Input Port | 60V Max, 120A Max |
| Specifications | Details |
| Car Charger Output | 12V - 10A |
| Home Panel Power Port | 6000W Max (AC Input), 6000W Max (AC Output), 120V/240V, L1+L2+N+PE |
| AC Output Power (Total) | 6000W Max |
| AC Output 1 | 120V~ 20A Max, 60Hz, 2400W Max |
| AC Output 2 | 120V~ 20A Max, 60Hz, 2400W Max |
| AC Output (NEMA L14-30R) | 120V/240V~ 25A Max, 60Hz, 6000W Max |
| USB-A Output | 5V - 2.4A (12W Max Per Port) |
| USB-C Output | 5V - 3A / 9V - 3A / 15V - 3A / 20V - 3A / 20V - 5A (100W Max Per Port) |
| Specifications | Details |
| UPS | 20ms |
| Specifications | Details |
| Discharging Temperature | -4°F-104°F / -20°C-40°C |
| Charging Temperature | 32°F-104°F / 0°C-40°C |
| Specifications | Details |
| Size | 27.6×15.3×15.6 in / 70.2×38.8×39.5 cm |
| Net Weight | 62kg / 136.7lb |
What does the 50A Transfer Switch do?
The 50A transfer switch allows the F3800 Plus to instantly take over when the grid goes down, providing seamless backup power without any manual switching.
Can I expand the battery capacity?
Yes. You can expand up to 53.8kWh by adding BP3800 Expansion Batteries.
What appliances can I run with this setup?
How fast does the system recharge?
Does the F3800 Plus support pass-through charging?
Yes, the system supports simultaneous charging and discharging, allowing you to use power while charging.
Is installation required for the transfer switch?
Yes, installation by a licensed electrician is recommended for the 50A transfer switch to ensure safe and proper wiring.
Can I use this system off-grid?
Yes, the F3800 Plus + Transfer Switch is perfect for off-grid living, providing solar charging, battery storage, and generator compatibility.
How long does the battery last?
The LiFePO₄ battery is rated for 3,000+ cycles, ensuring over 10 years of daily use.
Can I use this system with a gas generator?
Yes. The F3800 Plus is fully compatible with all 240V gas generators, ensuring continuous backup power.
Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
US$40
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