Growatt AXE 15 kWh – energy storage kit
Growatt AXE 15 kWh is a ready-made low-voltage (LV) energy storage kit (LiFePO4 batteries) with a capacity 15 kWh, composed of 3 modules AXE 5.0L-C1, from the offer PVGroup.pl. Growatt This model is a modular, low voltage (LV, 51,2 V) LiFePO4 energy storage system. It is charged from photovoltaics (and in systems off-grid also from the grid/generator) and provides energy to the receivers and in emergency mode. Integrated BMS manages the operation of the entire cluster. The storage unit is matched to an inverter with a compatible voltage class—in this case, three-phase hybrid inverters. Growatt WIT-HU (4–15K).
This datasheet provides complete information about the model: operating principle, compatible inverters, expansion options, full specifications from the manufacturer's catalog, and capacity selection. All parameters are taken from the official documentation. Growatt — we provide them to facilitate selection and avoid purchasing errors. If you still have questions, our technical team will provide free assistance in selecting the right storage for your inverter, capacity for your energy consumption, and other components for your photovoltaic installation.
Expert opinion
Opinion of the technical team PVGroup.pl
"Growatt AXE 15 kWh This is a robust low-voltage (LV) LiFePO4 energy storage device, which we recommend for expanding your photovoltaic system with increased self-consumption and backup power. Compatibility between the battery voltage class and the inverter is crucial when purchasing a battery—we'll be happy to verify the storage device's suitability for your system and help you choose the right capacity for your actual energy consumption.
— Technical team PVGroup.pl
How energy storage works Growatt AXE 15 kWh
Growatt AXE 15 kWh is a modular, low-voltage (LV, 51,2 V) LiFePO4 energy storage device. It is charged from photovoltaics (and in systems off-grid also from the grid/generator) and provides energy to the receivers and in emergency mode. Integrated BMS manages the operation of the entire cluster.
In practice, the storage facility increases the self-consumption of photovoltaic energy: instead of feeding surplus energy into the grid at a low price and buying it back at a higher price in the evening, you consume your own energy when you need it. Combined with a hybrid inverter, the storage facility also provides emergency power to key circuits during grid outages.
Who is this energy storage for?
- Prosumers in net-billing — the warehouse shortens the return on installation, increasing self-consumption.
- Homes and businesses with a hybrid inverter compatible voltage class.
- People who care about emergency power supply during power outages.
- Installations expanded in stages — you add capacity as needed.
The most important features
- Cobalt free lithium iron phosphate (LFP) cells — safe and durable.
- Depth of Discharge DOD 92% — actual capacity used
- Integrated BMS — voltage, temperature protection and cell balancing
- Modular construction — easy capacity expansion
- Degree of protection IP20
Compatible inverters and accessories
Growatt AXE 15 kWh is a low voltage (LV) storage device designed to work with: three-phase hybrid inverters Growatt WIT-HU (4–15K)The system is selected with an integrated BMS. A base is required for floor mounting. Warning: The battery voltage class (LV/HV) must be compatible with the inverter - we will confirm the selection before purchase. You can find the full range of inverters at inverter categories.
What's included in the kit?
Growatt AXE 15 kWh to ready-made energy storage kit with a capacity of 15 kWh, composed of 3× battery module AXE 5.0L-C1 (low voltage (LV)) with the necessary equipment for start-up: integrated BMS and a base for floor mounting. The set is compatible with three-phase hybrid inverters. Growatt WIT-HU (4–15K) — It has been matched to the voltage class (LV) and capacity, allowing the installer to install it without selecting separate components. If necessary, the capacity can be expanded later with additional modules.
Selection of warehouse capacity
Modular expansion: 1–10 modules of 5 kWh per cluster, up to 8 clusters = up to 400 kWh — from home to industrial installations. We select capacity based on daily energy consumption and the investment objective: to increase self-consumption, a storage system covering evening consumption is usually sufficient, while for real emergency power, higher capacity and power are selected. Contact info@pvgroup.pl — we will calculate the right size for your installation and inverter.
Growatt AXE 15 kWh and savings and self-consumption
In net billing, energy fed into the grid is priced lower than the energy you later buy back. Energy Storage Growatt AXE 15 kWh This balance is reversed: surplus panels, which would otherwise be fed into the grid at a low price, are stored at home and used in the evenings and nights. This increases self-consumption, reduces electricity bills, and significantly shortens the return on investment in photovoltaics. Furthermore, there's a value that's difficult to quantify in złoty—energy security: in the event of a grid outage, the storage unit, along with a hybrid inverter, maintains power to the most important circuits in your home or business. The higher energy prices and the greater daily consumption, the faster the storage unit pays for itself—which is why, when selecting a system, we consider your actual consumption profile, not just the system's power output.
parameters Growatt AXE 15 kWh in practice
A high depth of discharge (DOD 92%) allows for the utilization of almost the entire capacity. Cobalt-free lithium iron phosphate (LFP) cells are thermally safe and resistant to degradation.
Design: IP20 protection class, operating temperature range 0~50°C °C, weight 42 kg with dimensions 650/350/165 (W/D/H) mm.
Safety - LiFePO4 cells
Growatt AXE 15 kWh built on lithium-iron-phosphate (LiFePO4) cells. This is the safest chemistry commonly used in home energy storage today: it is thermally resistant, cobalt-free, and much less susceptible to thermal runaway than older NMC cells. A built-in battery management system (BMS) continuously monitors individual cell voltages, temperatures, and charge and discharge currents, disconnecting the storage device in the event of an abnormality and balancing the cells for longer life. Combined with long cyclic durability, this translates into years of maintenance-free storage operation.
Installation and operation
Growatt AXE 15 kWh Installed by a qualified installer according to the manufacturer's instructions. The IP20 protection rating determines the installation location; pay attention to the operating temperature range and ventilation. The warehouse is managed by BMS and inverter - after starting, its status (SOC, charging, discharging) can be seen remotely in the application ShinePhoneThe device is covered by a European service warranty (5 or 10 years (depending on the variant) according to the manufacturer); we issue a Polish VAT invoice with the order.
Key specifications
| Growatt AXE 15 kWh — specification | |
|---|---|
| Type | LiFePO4 (LV) energy storage kit |
| Set capacity | 15 kWh |
| Number of modules | 3 × AXE 5.0L-C1 |
| Cell chemistry | Cobalt free lithium iron phosphate (LFP) |
| Nominal voltage | 51.2 V |
| Depth of Discharge (DOD) | 92 % |
| Level of security | IP20K |
| Charging temperature | 0~50°C °C |
| Discharge temperature | 0~50°C °C |
| Compatible inverters | three-phase hybrid inverters Growatt WIT-HU (4–15K) |
| Management / BMS | integrated BMS |
| Warranty | European service warranty (5 or 10 years (depending on the variant) according to the manufacturer) |
Full parameters in the manufacturer's catalog card.
What makes the series stand out - Growatt AXE 15 kWh
Door Line AXE 5.0L is a scalable LV storage solution – from a single module to 5 kWh clusters up to 400 kWh, for installation off-grid, 1-phase hybrid and WIT-HU.
What to pay attention to when choosing Growatt AXE 15 kWh
The most important thing when buying a warehouse is the fit voltage classes battery for inverter: this model is low voltage (LV), so it works with three-phase hybrid inverters Growatt WIT-HU (4–15K). A battery of the wrong class won't work. It's also worth planning the target capacity right away (modular expansion is inexpensive, but it's more convenient to size the system in advance) and a mounting location with appropriate temperature and ventilation. If in doubt, send us the inverter model—we'll confirm the storage location before purchase.
Monitoring — Growatt AXE 15 kWh
Magazine Growatt AXE 15 kWh you monitor through the inverter to which it is connected: application ShinePhone and the portal ShineServer show state of charge (SOC), charge and discharge power, and operation history, with failure notifications. For installers servicing multiple facilities Growatt provides service accounts with an overview of the entire fleet from a single panel.
About the brand Growatt
Growatt is one of the world's largest manufacturers of photovoltaic inverters and energy storage systems, present in the PV market for over a decade, with an extensive service network in Europe. PVGroup.pl we offer equipment Growatt from official European distribution, with full documentation, European service warranty and technical support in Polish.
Why is it worth buying at PVGroup.pl
- Original equipment from official European distribution — full documentation and certificates.
- European service warranty (5 or 10 years (depending on the variant) according to the manufacturer) and a Polish VAT invoice.
- Selecting a storage unit for the inverter and installation — We'll help you choose the right voltage class and capacity. Questions: info@pvgroup.pl.
- B2B wholesale prices — discounts for installers and companies after logging in.
Delivery, warranty and B2B support
Growatt AXE 15 kWh We ship from an EU warehouse (Raben, DPD, Dachser) to companies and construction sites throughout Poland and the European Union. Every order is accompanied by a Polish VAT invoice, and the product is covered by a European service warranty (5 or 10 years (depending on the manufacturer's option) with our complaint handling service. After logging in, installers can see discounted wholesale net prices. For a quote for the inverter + warehouse package, please contact info@pvgroup.pl.
Most frequently asked questions
Which inverters is it suitable for? Growatt AXE 15 kWh?
This is a low voltage (LV) storage system designed to work with: three-phase hybrid inverters Growatt WIT-HU (4–15K). The battery voltage class must match the inverter.
What is the capacity and can I expand it?
Capacity is 15 kWhModular expansion: 1–10 modules of 5 kWh per cluster, up to 8 clusters = up to 400 kWh — from home to industrial installation.
What cell chemistry and what lifespan Growatt AXE 15 kWh?
Cobalt-free lithium iron phosphate (LFP) cells, DOD 92%. This is a safe and durable technology.
Czy Growatt AXE 15 kWh provides emergency power?
Yes - when combined with a hybrid inverter, the storage unit supports selected circuits in the event of a grid failure (inverter backup/EPS function).
Where can I install it? AXE 15 kWh?
IP20 protection rating. Installation should be performed by an installer according to the instructions; pay attention to the operating temperature range and ventilation.
What warranty does it have? Growatt AXE 15 kWh?
The product is covered by a European service warranty (5 or 10 years (depending on the variant) according to the manufacturer); we issue a Polish VAT invoice for the order.
How to monitor your battery charge AXE 15 kWh?
Battery status (SOC), charging and discharging are visible in the application ShinePhone and the portal ShineServer — through the inverter to which the storage is connected.
What is the difference between a low voltage (LV) and a high voltage (HV) battery?
LV (approx. 48–51 V) works with inverters off-grid and some hybrids; HV (hundreds of V) with three-phase hybrids. The battery must match the inverter's voltage class - otherwise it won't work.
Net wholesale prices with a B2B discount are visible after logging in. Log in to see net prices with a wholesale discount.
Marcin –
AXE 15 kWh – good quality and capacity