Zonergy Residential Single-Phase Energy Storage System, Panda 3680S

The Zonergy Panda 3680S is a residential single-phase hybrid energy storage system pairing a 3.68 kW nominal AC inverter (4.0 kW max, 4.6 kW peak) with modular 5.12 kWh Lithium Iron Phosphate (LFP) battery packs scalable from 5.12 to 30.72 kWh (4.6–27.65 kWh usable). Its single-phase Venus 3680-S2 inverter operates up to 600 V PV input with 100–550 V MPPT range, 5 kW max PV input power, dual MPPTs at 16 A each, 220–240 V output, 50/60 Hz, and IP66 outdoor protection with on/off‑grid transfer time under 10 ms for UPS‑grade backup. The stackable Limestone battery modules (5H‑P to 30H‑P) use 51.2 V LFP cells, offer up to 5 kW charge/discharge power per stack, −20 to +50°C operating range, and IP66 enclosures, while system monitoring/dispatch is enabled via CAN/RS485 and optional Wi‑Fi/4G, LCD plus app, with certified compliance to IEC 62109, IEC 62619, EN50549‑1, VDE‑AR‑N 4105, G98/G99, UNE217001/2, RoHS, WEEE, and UN38.3 safety standards.