Model comparison
Anker's two wheeled home-backup units, a step apart in capacity and output. The F3000 is the cheaper energy, 10% less per watt-hour at the makers' prices, is 40.8 lb lighter and is rated for 4,000 cycles against 3,000. The F3800 holds 768 Wh more, gives 2,400 W more continuous output and has 8 AC outlets against 5: buy it for that, and the F3000 for the money.
Anker SOLIX
$1,299.99 $1,699.99 at Anker SOLIX
Buy it if you want the most stored energy per dollar ($0.42 against $0.47 per Wh).
Anker SOLIX
$1,799.99 $2,199.99 at Anker SOLIX
Buy it if you need more continuous output (6,000 W continuous and 9,000 W surge, against 3,600 W and 7,200 W).
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Compare the differences that matter for your devices; Anker SOLIX F3000 leads on 5, Anker SOLIX F3800 on 4, and the rest are equal or not comparable.
| Field | F3000 | F3800 |
|---|---|---|
| Capacity | 3,072 Wh | 3,840 Wh |
| Output (surge) | 3,600 W (7,200 surge) | 6,000 W (9,000 surge) |
| Weight | 91.5 lb | 132.3 lb |
| Price | $1,299.99 | $1,799.99 |
| Price per Wh | $0.42 | $0.47 |
| Chemistry | LiFePO4 | LiFePO4 |
| Rated cycles | 4,000 to 80% | 3,000 to 80% |
| Max solar input | 2,400 W | 2,400 W |
| Max AC input | 3,600 W | 1,800 W |
| Wall recharge | – | – |
| Expandable | yes, to 12,288 Wh | yes, to 26,880 Wh |
| UPS switchover | 20 ms | 20 ms |
| AC outlets | 5 | 8 |
| USB-C ports | 2 | 3 |
| Warranty | 5 years | 5 years |
| Dimensions | 25.6 x 11.8 x 14.8 in | 27.6 x 15.3 x 15.6 in |
Cycle counts are highlighted only when both makers rate them to the same remaining capacity. A full recharge is not ranked against a charge to 80%. Missing figures never count as an advantage. These are manufacturer ratings; matching endpoints do not prove identical test conditions.
Rated cycles: F3000, 4,000 to 80%; F3800, 3,000 to 80%.
| Field | F3000 | F3800 | Meaning |
|---|---|---|---|
| Capacity | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Output (surge) | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Weight | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Price | F3000: price record · checked 7 Oct 2026 | F3800: price record · checked 7 Oct 2026 | Manufacturer figure; unknown remains unknown |
| Price per Wh | F3000: price record · checked 7 Oct 2026 | F3800: price record · checked 7 Oct 2026 | Price ÷ rated Wh; calculated, not measured |
| Chemistry | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Rated cycles | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Stated cycles and remaining-capacity percentage; conditions may differ |
| Max solar input | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Max AC input | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Wall recharge | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Keep the full or 80% charge endpoint |
| Expandable | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| UPS switchover | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| AC outlets | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| USB-C ports | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Warranty | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
| Dimensions | F3000: specification record · checked 6 Sep 2026 | F3800: specification record · checked 6 Sep 2026 | Manufacturer figure; unknown remains unknown |
Estimated AC energy = rated Wh × 0.85. Runtime = estimated AC energy ÷ load W, with no reserve. Capacity and weight differences use the displayed figures; price per Wh uses each model's own price record and date. Device-load inputs are in the sizing calculator.
Check whether each unit has enough battery and output for the devices you want to run.
| Job | Needs | F3000 | F3800 |
|---|---|---|---|
| a day of home backup (a full-size refrigerator, a router, phones and lights for a day) | 2,323 Wh, 92 W running, 1,351 W start | yes | yes |
| a night of CPAP (a CPAP with its humidifier for one 8-hour night) | 599 Wh, 53 W running, 104 W start | yes | yes |
| two nights of camping (a compressor cooler, lights, phones, a laptop and a fan for two nights) | 2,066 Wh, 157 W running, 157 W start | yes | yes |
| a day in an RV (a 12 V fridge, lights, TV, coffee maker, phones and a laptop for a day) | 648 Wh, 156 W running, 156 W start | yes | yes |
| a working day in a van (a working day of laptop, Starlink, fridge, lights and a fan) | 2,295 Wh, 244 W running, 244 W start | yes | yes |
| a laptop and two phones (a laptop for six hours and two phone charges) | 396 Wh, 60 W running, 60 W start | yes | yes |
Hours = capacity × 0.85 ÷ device watts, with the draws from the device table; "start" is whether the inverter's surge clears the device.
| Device | Draw W | F3000 h | Start | F3800 h | Start |
|---|---|---|---|---|---|
| CPAP machine (with heated humidifier) (with humidifier) | 53 | 49.3 | yes | 61.6 | yes |
| Refrigerator (full-size, ENERGY STAR, ~18 cu ft top freezer) (average draw) | 41 | 63.2 | yes | 79 | yes |
| Laptop (MacBook Air, charging) | 40 | 65.3 | yes | 81.6 | yes |
| Wi-Fi router | 24 | 108.8 | yes | 136 | yes |
| Starlink Standard kit (dish + router) | 88 | 29.8 | yes | 37.3 | yes |
| TV, 50-inch LED / Crystal UHD | 89 | 29.3 | yes | 36.7 | yes |
| Space heater, 1500 W | 1,500 | 1.7 | yes | 2.2 | yes |
More tracked models from both brands: Anker SOLIX and Anker SOLIX. Every unit at this size: the full table. Your own devices: the sizing calculator.
Anker SOLIX F3000 states a 20 ms switchover, so it can sit between the wall and a fridge, router or CPAP and take over when the power cuts; Anker SOLIX F3800 states 20 ms. Anker SOLIX F3800 holds more (3,840 against 3,072). Check your appliance's start-up watts against the surge figures in the table.
F3000 at $0.42 per Wh against $0.47. This compares purchase price with rated capacity, not lifetime delivered energy.
A small window unit draws 500 to 1,000 W running and several times that for an instant at start; check the surge figure in the table against the air conditioner's label. Either way an afternoon of it empties a 1 kWh unit; the RV page works the rooftop version.
