This bundle pairs the S5000 portable power station with a BP5000 Expansion Battery for 10kWh of combined storage, doubling runtime for multi-day outages without adding a second power station. You keep the full 4,500W rated and 8,000W peak output across 120V/240V for fridge, well pump, dryer, and home office, plus 8.8W idle draw and OptiSave 2.0 efficiency on the larger bank. Indoors it runs at 30 dB with no fumes or venting, carries UL 9540 and 9540A certification, and 10ms UPS switchover keeps Wi-Fi and computers online. Add more BP5000 batteries to scale toward 30kWh, or pair a generator for continuous backup at full 4,500W output even while charging. | Anker | | SOLIX S5000 w/Expansion Battery, 10kWh/4500W Portable Power Station for Home Power Backup (10048 Wh Capacity) | Best Buy