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Wattsonic Commercial High Voltage Power Cabinet

Powerful, and more powerful

Wattsonic Commercial High Voltage LiFePO4 Rack

Mounted Battery Modules with BMS

  • Modular designing
  • 10,000 cycles at 90% DOD
  • 200V-1000V flexible voltage designing
  • Compatible with
    Germany known EMS brand Smart1
  • Auto-address setting
    plug in and play
  • Open interface for external
    control and management

Declare your energy independence

With 30mWhs+ global projects reference, Wattsonic high voltage commercial storage system offering proven running performance and reliability. By cooperating with market leading PCS/Inverter brands like Kaco/Refusol/Kehua, Wattsonic can provide comprehensive commercial storage system with superior flexibility as well as quick and easy system commissioning convenience, plug in and play.

System component

Master BMS

Responsible for monitoring battery operation, health, timely response, adjustment and warning.

Battery Module

38.4V/3.84KWH battery module, connected in series in each single rack of cabinets to achieve greater capacity.

80.6kWh Single Rack

Reliable manufacturing process and partners

Wattsonic is committed to the design and manufacture of the most reliable products, so that you do not have to worry about the use of products, and to provide you with the most perfect service.

EMS Partner

PCS Partner

Certificate Partner


All Wattsonic all-in-one hybrid storage system can be combined with heating pumps/heating elements/HVAC to realize seamless integration with smart control to optimize your energy consumption.

Maximum 5 units 80.6kWh
can be paralleled to realize bigger capacity

Full range Wattsonic Li-HV all-in-one storage system can support parallel connection at both on-grid and off-grid port to offer superior system designing and commissioning flexibility.

Standard running modes
  • Maximum PV Self-Consumption
  • Peak Load Shifting
  • UPS Level
  • Peak Valley Mode
  • Off-grid
  • 0-injection

In this working mode, when the power from the PV array is sufficient, PV power will supply the loads, battery, and grid by the following sequence: Loads>Battery>Grid.

PV power will supply the loads with priority, and secondly charge the battery if exceed PV energy, and then feed to the grid. (You can set the power to the grid to 0W if the local grid doesn’t allow through APP or inverter display).

When the PV power is insufficient, the battery will discharge to supply loads, and the grid will join in if the battery power is not enough.

General Mode --- Suficient PV Generation
General Mode --- Insufficient PV and Battery

In this working mode, the customer can set the maximum allowable power from grid("Pmax") through App or inverter display. When the loads consumption less than the Pmax, loads are supplied by the PV array and grid together.

When the loads consumption more than the Pmax, the power exceeded Pmax (cannot be higher than the inverter max output power) will be supplied by the inverter. PV power will take the priority to supply loads and if not enough, the battery will support the real-time loading immediately.

* To realize the “Peak Load Shifting” function, the load power that exceeded Pmax has to be within the inverter max output power, otherwise, the inverter will only output the max power which allowed.  

Peak Load Shifting --- Loading < Pmax
Peak Load Shifting --- Loading > Pmax

In this working mode, the inverter will use the power from PV or grid (Set by App) to charge the battery with full power and top priority until it is fully charged, and as long as the grid is there, the battery won’t discharge.
When the grid is cut off, power from PV and battery will suppy real-time loading connected to inverter back-up port immediately within 10ms.

* During UPS mode, if battery long time no discharge, the inverter will discharge and charge battery periodically(every 1 week) with small current roughly 1A to to reset battery SOC.      

In this working mode, the customer can set time-based scheduled charge and discharge by App, inverter will use the power from PV or grid(selectable by APP) to charge the battery in the scheduled period.

Inverter will use power from PV and battery to supply loads in the scheduled period and the insufficient part will be supplied by the grid.

Scheduled Charge --- Peak Valley Mode
Scheduled Discharge --- Peak Valley Mode

In the purely off-grid mode, power from PV will supply the back-up loads firstly and then charge the battery if there is surplus PV generation.

When the power from PV is weak, the battery will discharge to supply back-up loads together with or without PV.

Off-Grid --- Charge
Off-Grid --- Discharge

In this working mode, once battery full and real-time loading can be satisfied, inverter will automatically reduce PV generation to prevent injection into the grid.

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