Batteries for photovoltaics SolaX T-BAT SYS-HV
SolaX T-BAT SYS-HV is a high voltage battery range from SolaX. This category lists 4 SolaX T-BAT SYS-HV products with a usable capacity of 2.5 to 3.6 kWh. Guide
Suitable for: Home battery storage.
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SolaX T-BAT SYS-HV at a glance
SolaX T-BAT SYS-HV is aimed at family houses and small businesses: it stores the daytime solar surplus for the evening and the night. The battery management system talks to the inverter over RS485, CAN, so the inverter must list SolaX T-BAT SYS-HV as an approved battery before you order.
Protection ratings in this range: IP65. Units rated IP54 or higher can be mounted outdoors within the temperature limits in the datasheet. The range includes separate battery modules and control units, so a system can start at the minimum configuration and grow later within the stack limits that SolaX specifies.
Tip from practice
High voltage stacks are matched to the inverter by module count. Check the minimum and maximum number of modules your inverter model accepts before you fix the capacity, because that range decides which configurations will work.
How to choose a SolaX T-BAT SYS-HV configuration
The table lists every SolaX T-BAT SYS-HV product in this category with the key figures we hold for it. Choose in this order: inverter compatibility first, then usable capacity against evening and night consumption, then power and siting.
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SolaX T-BAT SYS-HV products compared
| Product | Usable capacity | Communication | IP rating |
|---|---|---|---|
| SolaX MCS0800 HV BMS (T-BAT-SYS-HV-S2.5) | - | RS485, CAN | IP65 |
| SolaX T-BAT-SYS-HV-3.0 MC0600 HV BMS | - | RS485, CAN | IP65 |
| SolaX T-BAT-SYS-HV-S2.5 (HS25) 2.5kWh HV Heated Battery | 2.5 kWh | RS485, CAN | IP65 |
| SolaX T-BAT-SYS-HV-3.6 3.6kWh HV Battery Module | 3.6 kWh | RS485, CAN | IP65 |
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Frequently asked questions about SolaX T-BAT SYS-HV
What usable capacity does SolaX T-BAT SYS-HV offer?
The SolaX T-BAT SYS-HV products listed here offer 2.5 to 3.6 kWh of usable capacity, and the modular design lets you add capacity later. Compare usable capacity rather than nominal capacity when you size the system.
Is SolaX T-BAT SYS-HV a low voltage or a high voltage battery?
SolaX T-BAT SYS-HV is a high voltage battery. It needs an inverter with a high voltage battery input and does not work on a 48 V input.
Which inverters work with SolaX T-BAT SYS-HV?
Any inverter that lists SolaX T-BAT SYS-HV on its approved battery list. The battery communicates over RS485, CAN. Matching the voltage is not enough on its own, because the inverter and the battery management system must use the same protocol and firmware.
Can a SolaX T-BAT SYS-HV system be expanded later?
Yes. Additional modules can be added within the maximum stack size that SolaX allows. Keep new modules in the same product family and firmware generation, and expand while the existing pack is still relatively new.
Can SolaX T-BAT SYS-HV be installed outdoors?
Units rated IP54 or higher can be installed outdoors within the temperature range in the datasheet. The ratings in this range are IP65.
What is SolaX T-BAT SYS-HV used for?
Mainly for family houses and small businesses. It stores the daytime solar surplus for the evening and the night and, with a suitable hybrid inverter, can also supply backup circuits during a grid outage.
Where can I buy SolaX T-BAT SYS-HV batteries?
ONSA Plus supplies SolaX T-BAT SYS-HV to installers and resellers across Europe. This category lists 4 SolaX T-BAT SYS-HV products with current prices and availability, and there is no minimum order.
Usable capacity, backup behaviour and inverter compatibility depend on the specific inverter model, the wiring of the installation and the manufacturer's approved combination list.
About ONSA Plus
Why installers across Europe buy storage from us
ONSA Plus is a European B2B distributor of photovoltaics, battery storage, heat pumps and EV charging stations. In our own EU warehouses we keep over 1,500 products from 25+ brands, including Huawei, Solis, SolaX and Dyness.
We are not just a trading company. We design and service energy systems ourselves, so we answer questions on battery sizing, inverter pairing and backup wiring from engineering practice, not from a catalogue. There is no minimum order, so you buy what the job needs.
