Product Description

The Growatt ALP 5.0L-E2 US is a modular 5kWh low-voltage LiFePO4 battery developed for residential and small commercial energy storage applications. Designed around a cobalt-free lithium iron phosphate cell chemistry, it combines high safety, reliable daily operation and flexible system expansion in a compact, installer-friendly format. The battery is suitable for users who want to increase solar self-consumption, store surplus photovoltaic energy and build a scalable backup or energy management solution around a compatible Growatt system.

Each ALP 5.0L-E2 US battery module provides 5kWh nominal energy capacity and 4.6kWh usable capacity. The battery operates at a nominal voltage of 51.2V, with an operating voltage range from 46.4V to 57.6V. Its 100Ah module capacity and 92% depth of discharge allow a large proportion of the stored energy to be used in everyday operation, helping households make better use of locally generated solar power.

The single-module ALP 5.0L-E2 US configuration supports a standard and maximum charge/discharge current of 60A and a maximum continuous discharge rate of 3kW. As additional battery modules are connected, the supported current and available power increase. The ALP LV-US platform can be expanded with up to eight battery packs in parallel, creating system capacities from 5kWh to 40kWh within one battery group. The datasheet also states that the wider architecture can support up to eight clusters in parallel, enabling significantly larger total storage capacities where the complete system design permits it.

Installation flexibility is one of the main strengths of the ALP platform. The battery can be installed on a wall or positioned on the floor with the appropriate base. Its modular and stackable design helps installers create compact systems while leaving room for later expansion. A single battery module measures approximately 710 × 185 × 295mm and weighs 46kg, excluding the optional floor base. This slim construction is suitable for utility rooms, garages and other installation areas where efficient use of space is important.

The enclosure is rated IP66 and NEMA Type 4X, providing strong protection against dust and water ingress. According to the datasheet, the battery is designed to operate within a temperature range of -10°C to +50°C. This robust protection level supports a wider range of installation environments than conventional indoor-only battery enclosures, subject to the full system design and manufacturer installation requirements.

Communication between the battery management system and the compatible inverter is handled through CAN communication. The BMS monitors key parameters including state of charge, system voltage, current, individual cell voltage, cell temperature and PCBA temperature. This continuous monitoring supports stable operation and helps protect the battery during charging and discharging. The datasheet also specifies a 94% DC-to-DC round-trip efficiency, supporting efficient energy transfer within the storage system.

The Growatt ALP 5.0L-E2 US is supplied with a 10-year warranty and is listed with certifications and test references including UL1973, FCC, UN38.3, RoHS and UL9540A. For professional installers and system integrators looking for a safe, modular and weather-resistant low-voltage battery, the ALP 5.0L-E2 US offers a practical foundation for expandable Growatt energy storage systems.

DATASHEET