BLUETTI 3–4 kWh comparison

BLUETTI Elite 300 vs Elite 400: TT-30 or more battery?

The BLUETTI Elite 300 and Elite 400 are current U.S. stations in the same broad 3–4 kWh range, but the practical choice is not simply the larger watt-hour number. The Elite 300 weighs less, accepts more listed solar input and explicitly includes a TT-30 RV outlet. The Elite 400 stores more energy and offers a higher continuous AC rating, but its rolling body weighs 39 kg. Use your one real load plan, outlet and charging route together; do not combine a station with an accessory package that has not been verified.

At a glance: exact standalone models

These are manufacturer ratings, not lab results. Neither station’s capacity figure guarantees the same amount of energy at an AC appliance. We did not measure runtime, charging time, inverter loss, UPS transfer or noise.

Choose the Elite 300 for a lighter carry and a documented RV outlet

The 300 is about 28 lb lighter than the 400. That does not make it light in absolute terms, but the 57.98 lb case is a more realistic choice when it needs to be moved into a vehicle or repositioned by a person than the 85.98 lb rolling 400. The 300 also accepts up to 1,200 W of solar versus the 400’s 1,000 W maximum. Solar input depends on array voltage, current, sunlight, panel temperature, cable and the station’s input limits; choosing a panel with a matching wattage label does not guarantee that rate.

The important RV distinction is connector-specific. BLUETTI’s Elite 300 U.S. product page identifies an RV-style TT-30 outlet. The 400’s reviewed port list is four AC outlets, two USB-A, two 100 W USB-C and one car-style 12 V socket; that list does not include a TT-30 receptacle. If an RV cord requires TT-30, do not infer that a household outlet is the same connector or current rating. The 300 is the relevant candidate in this pair, but check the connected RV’s actual loads and simultaneous limits.

The 300’s manual lists 2,400 W battery-mode AC output, 1,800 W AC bypass and up to 4,800 W Power Lifting only for certain pure-resistive loads. The 400’s manual lists 2,600 W AC output and up to 3,900 W Power Lifting for specified pure-resistive loads. Neither lifting figure is the ordinary continuous output rating for motors or compressors.

Choose the Elite 400 for more energy and a higher normal AC ceiling

The 400 adds 825.6 Wh of nameplate energy and 200 W of continuous AC output, and its wheels and handle make it easier to roll over a smooth floor. That matters when a refrigerator, lights, router and other modest outage loads need to share one stationary battery plan. The 39 kg body remains a difficult lift and stairs can erase the convenience of the trolley; if carrying is a frequent task, consider a lighter model even if its battery is smaller.

The solar result runs the opposite direction: the lower-capacity 300 has the higher input limit. If a solar plan needs more than 1,000 W but no more than the 300’s documented 1,200 W input, the Elite 400 does not pass that essential condition. Both manuals specify a 12–60 V solar window; the 300 allows 22 A, while the 400 lists a 20 A maximum. Respect the open-circuit-voltage ceiling and correct connection requirements before choosing a panel array.

Neither exact standalone box includes a solar panel. The manufacturers’ product pages display different panel and charging-accessory offers for these models. Those are separate package rows: exact panel identity, cable, carton contents and compatible combined input should be checked before treating a panel or car charger as part of the purchase.

UPS and home-backup limits matter more than a headline

The Elite 300 manual lists 10 ms UPS switchover; the Elite 400 lists 15 ms. BLUETTI cautions in both manuals that their UPS modes are not for data servers or workstations requiring high-performance UPS behavior. A transfer number is not an independent test or medical-device guarantee, and it does not replace an appliance-specific continuity plan. The manuals also prohibit connecting the portable station’s AC output to the grid. Neither is, by itself, a professionally installed whole-home transfer system.

Both units are IP20 rather than weatherproof. Their manuals give 32–104°F charging limits and −4–104°F discharge limits, so outdoor use still requires dry placement, ventilation and temperature planning. The larger Elite 400’s manufacturer page was showing late-November shipment when checked on October 23, 2026; the product’s delivery status can change. Confirm current availability and exact package before ordering.

Nearby alternatives

The Elite 200 V2 has 2,073.6 Wh and 2,600 W at 120 V in a 53.35 lb body: it keeps the Elite 400’s rated AC power while giving up 1,766.4 Wh and wheels. The Elite 100 V2 is much lighter at 25.3 lb but drops to 1,024 Wh and 1,800 W. Those are useful comparisons when weight or power matters more than the extra capacity of the 300/400 pair. Read each exact model review and manual, then set a realistic load list and reserve rather than turning capacity directly into a predicted runtime.

Read the Elite 300 standalone assessment · Read the Elite 400 standalone assessment · Compare the Elite V2 family