The GSL series all‑in‑one PV‑storage lithium‑battery system integrates a hybrid inverter and LFP storage battery within a stacked monolithic chassis. Three capacity variants are available: 10 kWh, 20 kWh and 30 kWh. Rated inverter output power: 5500 W; peak power: 11000 W. It supports flexible switching among 3 output modes and 4 charging modes. Single‑channel MPPT PV input power reaches 5500 W with 99.9% MPPT tracking efficiency; battery charge‑discharge efficiency hits 93%. Embedded DSP intelligent control algorithms and smart BMS deliver multi‑layer safety early‑warning and protection. Battery packs can be stacked for capacity expansion as required; concealed wiring ensures neat appearance. Cloud‑based real‑time remote monitoring is available via mobile APP. With IP20 rating, it runs stably between ‑10℃ and 55℃ and produces operating noise below 60 dB. Featuring high power density and plug‑and‑play convenience, it is widely applicable for residential and small‑scale industrial‑commercial PV‑storage scenarios.