Stackable 2500W Portable Power Station 2048Wh LiFePO4 Home Backup With Smart APP Control

The SOUOP S2-E is a modular 2048Wh LiFePO4 portable power station engineered for buyers who need capacity that grows with the load. Instead of replacing the whole unit when demand rises, owners dock additional S2-BAT expansion packs onto the base station and scale usable energy from 2048Wh to 4096Wh or 6144Wh in minutes. The stackable architecture, front-facing hot-swap connector and tool-free locking rails remove the installation barrier that normally forces installers to rewire a home backup system. With a 2500W pure sine wave inverter, a 5000W surge rating and an automatic transfer time under 20 milliseconds, the S2-E keeps refrigerators, medical devices, network racks and workshop tools running without a visible flicker during a grid outage.

• Stackable capacity expansion: The base 2048Wh pack accepts up to two S2-BAT modules through a front-mounted hot-swap connector, lifting total usable energy to 6144Wh without any additional inverter or wiring work.
• Smart APP monitoring and control: Built-in Wi-Fi and Bluetooth modules push live state of charge, input and output wattage, cell temperature and fault codes to the SOUOP APP, and allow remote switching of each AC group.
• 2500W pure sine wave output: A 2500W continuous inverter with 5000W peak handles motor-start loads from compressors, pumps and induction tools while keeping total harmonic distortion below three percent.
• Sub-20ms UPS transfer: When mains power drops, the station switches to battery mode faster than most desktop UPS units, protecting servers, NAS drives and home medical equipment from reboot cycles.
• Fast multi-source charging: 1000W MPPT solar input, 1200W AC input and dual USB-C 100W ports charge the pack simultaneously, restoring 0 to 80 percent in roughly 1.6 hours from a wall outlet.
• Long-life LiFePO4 cells: Automotive-grade prismatic cells deliver more than 3500 charge cycles to 80 percent state of health and hold charge safely across a wide operating temperature window.

The S2-E is built for residential backup, light commercial continuity and rental fleets. In a home installation it sits beside the distribution panel and carries the refrigerator, lighting circuit, router and gas boiler through an outage, while the docked expansion packs extend runtime from a few hours to several days. Small businesses use the same unit to keep point-of-sale terminals, security cameras and cold storage alive during rolling blackouts. Workshop owners appreciate the 2500W output for bench grinders and welding-adjacent tools, and event contractors stack two packs to run sound and lighting rigs off grid. Because every module shares one APP dashboard, a single operator can monitor an entire fleet of stations remotely.

Each station ships in a double-wall carton with moulded EPE foam, protected by a moisture barrier bag and secured with edge guards for container transport. The export carton measures 62 x 42 x 40 cm and holds one station plus accessory box, with a gross weight of 27 kg; two expansion packs travel in a separate carton of the same footprint. Every unit passes a 24-hour burn-in test, a full charge and discharge cycle, an insulation resistance check and a drop test on the finished carton before packing. Export documentation includes UN38.3 test reports, MSDS, CE and RoHS declarations, and IEC 62619 battery safety certificates. OEM branding, custom outlet configuration and private label APP skins are available for container orders, and the sales team supplies a spare parts kit with the first shipment.