Growatt Solar Batteries – Modular, Reliable & Scalable Energy Storage
Growatt is a well-known name in solar technology, particularly for inverters and storage systems. Their battery lines are designed to be flexible and modular, so homeowners can start small and add capacity later, depending on their energy needs. They use modern battery chemistries, safety protections, and offer options for both residential and commercial systems.
Key Models & Series
Here are some of Growatt’s main battery / storage product lines:
AXE LV Series
Designed for off-grid or hybrid solar systems.
Modular battery capacity that starts small (e.g. ~5 kWh) and scales up significantly (up to ~400 kWh).
Power output range around 3 kW to 30 kW depending on the setup.
Uses Lithium Iron Phosphate (LiFePO₄) chemistry without cobalt, for better safety, stability, and longer cycle life.
ARK Series
Low- and High-Voltage options (LV & HV) which are stackable modular units.
Modules are about 2.56 kWh each (for ARK LV in many cases), and multiples of these modules can be used to reach higher total storage (e.g. ~25.6 kWh or more).
Compatible for both single-phase and three-phase inverter setups in Growatt’s ecosystem.
ALP LV Series
Larger capacity residential/ small commercial storage.
Modules from ~5 kWh increasing up to ~40 kWh in some configurations.
Good for users who want large backup capacity or to run more of their house from stored solar energy.
H Series (All-In-One Energy Storage System)
This is a more integrated design combining battery + inverter functionality in one unit.
The H Series can scale: starts at roughly 6 kW inverter capacity, expandable up to 18 kW.
Battery modules in H Series start around 5.5 kWh and can be expanded up to ~33 kWh.
Designed to simplify installation (modular stacks), and includes safety features such as over-voltage, over-current, temperature and short-circuit protection.
Spec Highlights & Performance
Here are some of the typical specs and performance points for Growatt solar battery systems:
Chemistry: LiFePO₄ (Lithium Iron Phosphate) — no cobalt in many models. Safer and more stable, good for many cycles
Usable Capacity & Expandability:
Small units begin around ~5 kWh usable.
Many models allow adding modules to reach 25-40 kWh or higher.
Power / Output: Dependent on module count and inverter pairing. For example, ARK modules combined can deliver several kilowatts of continuous output (depending on system design) for residential backup or peak load usage.
Voltage: Some systems are low-voltage (~48-57.6 V for LV models), others are high-voltage (HV) or multiple module stacks creating higher system voltage.
Depth of Discharge (DoD): Many Growatt batteries allow high usable depth (often ~90%) meaning you can use most of the energy stored without greatly reducing battery life.
Durability & Protection: IP ratings like IP65 for many models (protection against dust and water), ambient operating temperatures that accommodate both indoor and outdoor installations in many climates. Warranty terms often around 10 years.
Advantages
Some of the strong benefits when choosing Growatt battery systems:
Modular / Scalable: You can begin with a smaller setup and expand later, which spreads cost and allows upgrades as needs grow.
Safety: Use of LiFePO₄, good protection features, solid battery management systems.
Compatibility: Designed to work with Growatt’s hybrid inverters and storage inverters, which helps ensure smooth integration and monitoring.
Good Performance: High usable capacity, high cycle life, efficient charge/discharge behavior.