The PTIPT 4 kW / 5 kWh Split Energy Storage System is a compact, high‑efficiency solution designed for residential and small commercial applications. It combines advanced lithium battery technology with a smart inverter to provide reliable backup power, self‑consumption optimization, and peak‑shaving capabilities.With a 4 kW rated output power and 5 kWh usable battery capacity, the system is suitable for typical household loads such as lighting, refrigerators, televisions, computers, and small air conditioners. The split design separates the inverter unit from the battery module, allowing flexible installation and easier maintenance. This configuration helps optimize space use in apartments, houses, or small offices, and makes upgrading or replacing components more convenient.The system supports multiple operating modes, including grid‑tied, off‑grid, and hybrid operation. In grid‑tied mode, it can store surplus energy from rooftop solar panels during the day and discharge it in the evening to maximize self‑consumption and reduce electricity bills. In backup mode, it provides uninterrupted power supply during grid outages, with seamless switchover to protect sensitive equipment. Time‑of‑use scheduling enables charging when tariffs are low and discharging when tariffs are high, contributing to long‑term cost savings.Built‑in intelligent battery management ensures safety and longevity. The battery management system monitors key parameters such as voltage, current, temperature, and state of charge in real time, offering protection against over‑charge, over‑discharge, over‑current, and over‑temperature. This helps maintain stable performance and extends the service life of the battery pack.The inverter features high conversion efficiency, reducing energy losses during charging and discharging. It delivers pure sine wave output, compatible with a wide range of household appliances. Multiple communication interfaces and monitoring options allow users to track system status and energy flows via a mobile app or web portal. Real‑time data on power generation, consumption, and storage helps users understand their energy profile and adjust usage patterns.The PTIPT 4 kW / 5 kWh Split Energy Storage System is designed with ease of installation in mind. Wall‑mounted or floor‑standing options are available, and modular construction supports parallel expansion if higher capacity or power is required. Robust enclosure design, combined with appropriate ingress protection, enables indoor installation in garages, utility rooms, or technical spaces.Overall, this system offers a balanced combination of power, capacity, safety, and flexibility. It is well‑suited for users seeking greater energy independence, improved power reliability, and optimized use of renewable energy in a compact, scalable package.