This 500W/1kWh portable storage unit adopts Grade‑A LiFePO4 cells, the foundation of its stable safety. Compared with ternary lithium, LiFePO4 resists high temperature and avoids thermal runaway under puncture or squeeze. The built‑in BMS provides full protection against overcharge, overdischarge, overcurrent, short circuit and overheating. It delivers over 6000 charge cycles with slow capacity decay. Free of heavy metals, it is eco‑friendly. It effectively reduces power risks for home backup and outdoor activities, balancing durability and safety.