
Anker SOLIX · Batteries
Works with
F3800 / F3800 Plus
Anker SOLIX BP3800 Expansion Battery (3840 Wh): compare specifications and model compatibility. View expansion battery details, photos and support information at 326energy.
Use
The Anker SOLIX BP3800 Expansion Battery is the flagship 3,840 Wh LiFePO4 module for the Anker SOLIX F3800 and F3800 Plus whole-home backup stations. Connect up to six BP3800 modules to a single F3800 to scale from 3.84 kWh up to 26.88 kWh (or up to 53.76 kWh across two parallel F3800 units).
Each module ships with its short high-current daisy-chain cable and anti-tip mounting brackets, allowing you to build a clean vertical tower in your garage or utility room that powers 120V/240V home circuits, well pumps, and EV chargers.
Compatibility
In action

Whole-Home Power Panel & EV Garage Tower
Stacks with Anker SOLIX F3800 (up to 6 BP3800 modules / 26.88 kWh per station) beside a Home Power Panel for 120V/240V backup.

Multi-Module 240V Utility Room Stack
Daisy-chained BP3800 expansion modules with anti-tip brackets power heavy 240V well pumps, HVAC circuits, and basement essentials.
Highlights
In the box
Keep browsing
15% OFFWorks with: C1000 (not C1000 Gen 2)
Doubles Anker SOLIX C1000 capacity from 1,056 Wh to 2,112 Wh in a compact 20 lb LFP module rated for 3,000+ cycles to 80% capacity. Includes the 3-point safety clasp host-to-battery connection cable.

Works with: C2000 Gen 2 / updated F-series
Second-generation 2,048 Wh LiFePO4 expansion module for the Anker SOLIX C2000 Gen 2. Weighs just 33.7 lb (15.3 kg), rated for 4,000 cycles to 80% capacity, and includes the expansion connection cable.

Works with: F2000 / F2600
Adds 2,560 Wh of 3,000-cycle LiFePO4 capacity to the Anker SOLIX F2600 (5,120 Wh total) or F2000 (4,608 Wh total). Features standalone 100W USB-C, dual USB-A, and 12V car ports plus the 3-point safety clasp cable.