Luxpowertek Li-15e-15kWh LV Lithium battery 51.2V

The Luxpowertek Li-15e 15kWh LV Lithium Battery 51.2V is a high-capacity low-voltage lithium battery built for serious residential and light commercial energy storage where longer backup time and higher usable storage matter. With a 15kWh rated energy capacity, 51.2V rated voltage, and 300Ah rated capacity, this battery is well suited to solar backup systems, off-grid support applications, and larger inverter installations that need dependable battery storage with stable low-voltage performance.

For buyers who care about real system performance, the Li-15e offers strong delivery on both storage and scalability. It supports 140A charge current and 140A discharge current, communicates through CAN / RS485, and can be expanded in parallel up to 35 units, making it a practical option for installations that may need future battery growth without redesigning the whole storage setup. This makes it especially attractive for properties that want more than just basic backup and need a battery platform that can scale with growing energy demand.

The battery is built using LFP cells, which remain one of the strongest choices for safety, cycle life, and long-term reliability in solar storage. It carries an IP20 rating, supports remote maintenance and firmware upgrade capability, and is designed for operating conditions from -20°C to +55°C, with storage conditions from -10°C to +35°C. It also includes multiple protection features against overcharge, over-discharge, overcurrent, overvoltage, overheating, short circuit, and reverse connection faults.

From a physical installation perspective, this is a substantial storage unit designed for serious applications. The Luxpowertek Li-15e measures 706 × 452 × 225 mm and has a weight of 98 kg, which is important for planning transport, mounting, placement, and installation access. For product pages that need ranking strength, these hard specs matter because buyers often search directly by battery size, voltage, weight, dimensions, chemistry, and communication type before making contact.

Technical Specifications