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The BLUETTI Elite 400 is a 3.84 kWh portable power station built for home backup, remote work and camping. Its LiFePO₄ 3,840Wh battery runs refrigerators, network gear, desktops, TVs and other critical loads, far beyond simple phone and laptop charging.
Key Takeaways
3,840Wh on wheels: This is BLUETTI’s first model with built-in casters and a telescopic handle. It weighs 85.98 lb (39 kg), measuring 17 × 11.34 × 19.29 in with the handle retracted and 41.02 in fully extended.
6ms switchover to battery under 740W load: Tests with a Dell workstation recorded a 6ms utility-to-battery transfer and 14.8ms return, both within the 15ms rated UPS window; the workstation ran uninterrupted through two test cycles.
3.07kWh usable AC output, 3.96kWh recharge draw: The blower-fan discharge test delivered 80% of the rated capacity before shutdown, while a full 0–100% recharge consumed 3.96kWh from wall power.
2,600W continuous AC output, 1,800W max AC input: Four AC outlets share the 2,600W inverter limit. Grid pass-through tops at 1,800W, and solar charging adds up to 1,000W for a combined 2,800W input cap.
Fewer ports than the Elite 300: It drops the TT-30 RV jack and 12V/30A DC port. Remaining outputs are four AC sockets, two 100W USB-C, two 15W USB-A and one 120W cigarette-lighter port. It retails at $1,399 with a five-year warranty.
Bigger battery means longer runtime for sustained outage support, not just controlled shutdowns. Actual runtime varies by load, inverter loss, temperature and battery health. The 120V inverter supports mixed small electronics or single high-power appliances as long as total draw stays under 2,600W. BLUETTI specifies a 5,200W surge rating and 3,900W Power Lifting rating for brief peak demands; neither raises the continuous 2,600W limit.
Charging options include up to 1,000W solar (12–60V, 20A max). Combined AC+solar charging hits the advertised 2,800W input ceiling. Wi‑Fi and Bluetooth link the unit to the BLUETTI app for remote monitoring, pass-through operation and outage alerts. The 15ms UPS transfer suits home office and network backup, though users should verify compatibility with their hardware.
Product Specifications
| Category | Parameter | Specification |
|---|---|---|
| Battery | Model | Elite 400 |
| Capacity | 3,840Wh | |
| Chemistry | LiFePO₄ (Lithium Iron Phosphate) | |
| Power output | Continuous AC output | 2,600W max (120V, 50/60Hz) |
| Surge power | 5,200W | |
| Power Lifting | 3,900W | |
| Output ports | AC outlets | 4× NEMA 5-20R, 2,600W combined |
| USB-C | 2× 100W max each | |
| USB-A | 2× 15W max each, 30W total | |
| 12V output | 1× cigarette lighter, 120W max | |
| Total outputs | 9 | |
| Charging | AC input | 1,800W max, 120V (IEC C14 inlet) |
| Solar input | 1,000W max, 12–60V, 20A max | |
| Combined AC + solar | Up to 2,800W | |
| Physical | Dimensions (handle retracted) | 432 × 288 × 490mm (17 × 11.34 × 19.29 in) |
| Dimensions (handle extended) | 432 × 288 × 1,042mm (41.02 in tall) | |
| Weight | 39kg / 85.98 lb | |
| Mobility | Integrated wheels + telescoping handle | |
| Environment | Storage temperature | -10°C to 40°C (14℉ to 104℉) |
| Discharging temperature | -20°C to 40°C (-4℉ to 104℉) | |
| UPS / connectivity | UPS switching time | 15ms rated |
| App connectivity | Wi-Fi and Bluetooth (BLUETTI app) | |
| Commercial | Price | $1,399 USD |
| Warranty | 5 years |
Build & Design
Unlike the Elite 300, the Elite 400 uses side-mounted removable vents instead of front/rear ventilation. Its rubber rear pads let it lie flat safely. It is wider, slightly shallower and much taller than the Elite 300 while holding an extra 800Wh of capacity. The wheels and pull handle simplify moving this heavy unit indoors on hard, flat surfaces but perform poorly on gravel or soft ground. BLUETTI states this model can be up to 35% lighter than competing alternatives of similar capacity.
All four NEMA 5-20R outlets share one inverter power rail with no per-socket protection. Each 20A receptacle supports a continuous safe load around 1,920W, so users must avoid putting loads exceeding that limit on a single outlet. The removal of RV and high-current 12V DC ports is a notable tradeoff; BLUETTI does not market this unit as RV-ready, unlike the Elite 300. The IEC C14 AC inlet includes a ground screw and 20A reset breaker.
Interface & App
The BLUETTI app displays charge level, input power, load wattage and estimated runtime. It supports remote access, solar yield tracking and weather alerts to pre-charge ahead of blackouts. Users select silent, standard or turbo charging modes to balance speed, fan noise and heat, plus adjustable grid current limits and Power Lifting. The feature set matches existing BLUETTI products with no major new functions.
Power Benchmarks & Comparison
| Metric | Elite 400 | Elite 300 | Elite 200 V2 |
|---|---|---|---|
| Rated capacity | 3,840Wh | 3,014.4Wh | 2,073.6Wh |
| AC energy delivered | 3.07kWh (80%) | 2.67kWh (89%) | 1.91kWh (92%) |
| Recharge energy drawn | 3.96kWh | 3.49kWh | 2.44kWh |
| Transfer to battery | 6ms | 8ms | not measured |
| Transfer to utility | 14.8ms | 8.25ms | not measured |
Rated capacity differs from AC-delivered energy due to conversion losses. It delivered 3.07kWh at AC outlets, equal to 80% of its nameplate capacity, versus 89% for Elite 300 and 92% for Elite 200 V2. Round-trip efficiency lands near 78%. Under the 740W workstation load, it runs roughly four hours, compared to about 3.6 hours on the Elite 300.
While its battery-to-battery switchover at 6ms beats the Elite 300’s 8ms, the re-sync back to grid power takes longer at 14.8ms with a noisier waveform. The connected workstation survived both transfers, though the manual warns this UPS function is not certified for critical servers.
Compared side-by-side with the Elite 300, the Elite 400 gains usable capacity and rolling mobility but adds 28 lb in weight, loses two specialty DC ports, drops solar max input from 1,200W to 1,000W, and costs $200 more. AC input speed remains identical at 1,800W.
Conclusion
The BLUETTI Elite 400 targets buyers wanting longer backup runtimes and wheeled portability for single-level homes or workshops. Its 6ms battery switchover proved stable for a desktop workstation, though the longer grid reconnection time caused no issue in this test.
Its large mass limits usability where lifting or uneven terrain is required. The removal of RV and high-current DC outputs makes it less ideal for RV and off-grid DC setups, where the Elite 300 may fit better. The shared 2,600W inverter rail also requires careful load planning across its four AC outlets.
At $1,399, it is a strong choice for stationary home and workspace backup where the larger battery’s extra runtime outweighs its weight and port sacrifices. Prospective buyers should compare measured output, port layout and transport conditions when choosing between Elite-series models.
Notes: Ports dropped versus Elite 300 — TT-30 RV outlet and 12V/30A DC output. Round-trip efficiency ≈78%. All four AC outlets share one 2,600W rail with no per-outlet protection; keep any single load under ~1,920W continuous (80% rule for a 20A receptacle).
Beijing Qianxing Jietong Technology Co., Ltd.
Sandy Yang/Global Strategy Director
WhatsApp / WeChat: +86 13426366826
Email: yangyd@qianxingdata.com
Website: www.qianxingdata.com/www.storagesserver.com
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