GRECELL Portable Power Station 4000W with Expansion Battery 5040Wh LiFePO4 Power Station 16 Outlets with 20ms UPS Backup

About this item

• 10.08kWh Expandable Capacity for Whole-Home Backup：Base capacity 5.04kWh, expandable to 10.08kWh by adding the included smart extra battery. Powers a typical household for 4-6 days during blackouts (calculated by 2kWh daily emergency use), easily replacing gasoline/fuel generators for home electricity storage.
• 4000W Output & 16 Outlets for 99.9% Devices：4000W high power supports most home appliances (EV, AC, microwave, CPAP, etc.) and includes 16 outlets (6 AC, 4 USB-A, 2 USB-C, 2 DC, 1 XT90, 1 cigarette lighter). 30A RV outlet is perfect for long-distance RV/travel trailer trips.
• 1.5H Super Fast Recharging (Max 3900W Input)：Combines 1800W AC input and 2100W solar input to fully charge in 1.5 hours—faster than other similar 4000W power stations. Also supports 2100W solar-only charging (3.3H full) and car charging for flexible juicing between outages.
• Safe LiFePO4 Battery & <20ms EPS Backup：EV-grade LiFePO4 battery with 8-layer BMS protection (over-charge/discharge, short-circuit, temperature control) offers 4000+ charge cycles and 10+ year lifespan. <20ms EPS switch ensures uninterrupted power for PS5, refrigerator, and sensitive devices during sudden outages.
• Pure Sine Wave & Multi-Scene Use：Switchable 50Hz/60Hz pure sine wave output prevents device damage, ideal for residential emergencies, outdoor camping, commercial tasks, and even emergency EV charging. Portable design (112.44 lbs) balances capacity and mobility for on-the-go power.
• Product description Previous page Next page 1 HOME BACKUP 2 OUTDOOR CAMPING 3 PROFESSIONAL WORKING 4 ONE POWER ALL Previous page Next page Previous page Next page 1 READY FOR ANY EMERGENCY 2 PURE SINE WAVE OUTPUTS 3 RELIABLE BMS SYSTEM 4 CHARGE YOUR EV EMERGENCY Which power station is compatible with S5-BAT Expansion Battery? Only GRECELL 4000W Power Station S5 is compatible with the expansion battery. To connect S5 solar generator with the expansion battery by the included battery packs connecting cable. Can I use S5-BAT Expansion Battery separately? The expansion battery cannot be used separately. It must be connected to the GRECELL S5 power station 5040Wh to charge or discharge. How long will S5+S5-BAT bundle power my device? Working time (estimated) = 10080Wh * 0.85 / operating power of your device. (0.85 = Conversion Rate) Kindly note the 10.08kWh Expandable Capacity for Whole-Home Backup：Base capacity 5.04kWh, expandable to 10.08kWh by adding the included smart extra battery. Powers a typical household for 4-6 days during blackouts (calculated by 2kWh daily emergency use), easily replacing gasoline/fuel generators for home electricity storage.; 4000W Output & 16 Outlets for 9