Identify the inverter
Note the manufacturer, the full model name, the serial number and the firmware version.
View optionsPV equipment · nationwide delivery
Battery for an existing PV system
Expanding an existing system starts with the inverter already installed. Check whether it supports a battery, what voltage it uses and which BMS and communication protocol are approved.
A battery with a matching voltage or connector is not automatically software- and electrically compatible with the existing inverter.
- Inverter
- checked first
- BMS
- required in modular architectures
- Usable kWh
- sized to evening consumption
Make an informed choice
The three decisions that shape the configuration
Check the architecture
Determine whether the system requires an HV or LV battery and whether the BMS is separate.
View optionsChoose the capacity
Use the consumption during hours without sun and the required discharge power.
View optionsSelection from our shop
Battery modules and management units
The cards include both battery modules and BMS units. Read the title and description: a BMS without a module does not store energy, and a module may require a separate BMS.
HINEN
Hinen LV Single-Phase 5 kWh Battery Module, without BMS
Regular price4.260,33 lei
VAT included
Hinen
Hinen LV Single-Phase 5 kWh BMS Unit — Battery Module Not Included
Regular price340,29 lei
VAT included
HINEN
Hinen HV Three-Phase 7.7 kWh Battery Module, without BMS
Regular price8.830,81 lei
VAT included
Hinen
Hinen HV Three-Phase 7.7 kWh BMS Unit and Base — Battery Module Not Included
Regular price1.872,46 lei
VAT included
Before you order
Information to send for checking
A clear photo of the rating label and the existing electrical panel can prevent the choice of an incompatible component.
Talk to a consultant: 0723 172 359- Inverter brand and full model name
- Firmware version, if available
- Current wiring diagram and type of grid connection
- Manufacturer's compatibility list
- Night-time consumption and simultaneous power
- Space, temperature and installation conditions
Clear answers
Questions before you buy
These answers explain the commercial and technical limits of the choice. The product specification and the confirmed quote remain decisive.
Can I add a battery to any PV inverter?
No. A conventional on-grid inverter may lack the necessary interface. Sometimes a compatible hybrid inverter or a separately designed AC-coupled solution is needed.
What is the difference between a battery and a BMS?
The battery module stores the energy. The BMS monitors and controls the modules and communicates with the inverter. In some product families they are sold separately and are required together.
Can I combine modules of different capacities or generations?
Only if the manufacturer explicitly approves the combination and the expansion conditions. Do not mix modules, voltages or versions based on how they look.
How much battery do I need for the evening?
Add up the consumption of the appliances used after sunset, take into account simultaneous power, usable energy and losses, then choose a reasonable reserve without oversizing.
Check before you pay
Choose equipment that works together
Send us your consumption, grid connection details and the products you already have. We will confirm what needs to be checked in the commercial configuration.