Voltertech Co.,Limited
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| Utility or Compatible Generator Charging | Essential and Flexible Load Groups |
| Solar Operating Method | Solar - First Charging through Dual PV Inputs |
| Daily Energy Strategy | Essential Loads with Controlled Runtime |
| Payment Terms | L/C,T/T,Western Union |
| Grid Relationship | Local Load Supply without Grid Export |
| Expansion Approach | Larger Battery Stack or Parallel Inverter System |
| Supply Ability | 5000 Units per Month |
| Suitable Site Profile | Homes, Farm Buildings and Remote Work Areas |
| Off - Grid System Position | Compact High - Power Solar Storage |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Low - Solar Recovery | Utility or Compatible Generator Charging |
| Certification | MSDS , UN38.3 |
| Model Number | ESS-15KWH-12KW-A-2 |
| Brand Name | Voltertech |
| Place of Origin | China |
View Detail Information
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Product Specification
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production | Utility or Compatible Generator Charging | Essential and Flexible Load Groups |
| Solar Operating Method | Solar - First Charging through Dual PV Inputs | Daily Energy Strategy | Essential Loads with Controlled Runtime |
| Payment Terms | L/C,T/T,Western Union | Grid Relationship | Local Load Supply without Grid Export |
| Expansion Approach | Larger Battery Stack or Parallel Inverter System | Supply Ability | 5000 Units per Month |
| Suitable Site Profile | Homes, Farm Buildings and Remote Work Areas | Off - Grid System Position | Compact High - Power Solar Storage |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam | Low - Solar Recovery | Utility or Compatible Generator Charging |
| Certification | MSDS , UN38.3 | Model Number | ESS-15KWH-12KW-A-2 |
| Brand Name | Voltertech | Place of Origin | China |
| High Light | 12kW Off Grid Energy Storage System ，15.36kWh Off Grid Energy Storage System | ||
15.36kWh 12kW Off Grid Energy Storage System with Pure Sine Wave Output
This off grid energy storage system combines a 15.36kWh LiFePO4 battery with a 12kW pure sine wave inverter and dual MPPT solar charging. It is suited to projects that require substantial output power but can manage daily energy use within a compact battery reserve.
The system can supply selected loads at remote homes, farm buildings, workshops and service locations while charging from solar energy during the day. A compatible utility or generator source can provide recovery charging when sunlight is insufficient.
The 12kW inverter can support a relatively high combined load, but the 15.36kWh battery determines how long those loads can operate. Running the full inverter output for an extended period would use the available battery energy quickly.
For better off-grid performance, separate equipment into essential and flexible groups. Refrigeration, lighting, communications and security equipment may remain available, while tools, pumps and other controllable loads can be scheduled around solar production.
Two PV input channels allow the solar array to be divided into separate strings. Each channel is listed at up to 5000W and 18A, with an MPPT operating range of 60–500Vdc.
Daily solar production should be sufficient to operate daytime loads and restore the battery energy used overnight. Actual production depends on sunlight, temperature, shade and panel orientation.
When solar production is limited, AC charging can be supplied from a compatible generator or utility source. Charging settings should remain within the battery limits.
The inverter provides 12kW rated output and 22000VA instantaneous power. Pumps, compressors, refrigerators and motor-driven tools should still be checked for normal and startup demand.
Dual AC outputs help separate priority circuits from flexible equipment. When both channels are used, each channel is listed at up to 6kW while the combined system output remains 12kW.
This configuration does not support grid export. It is intended to store energy and supply local loads.
| Off-Grid Energy Reserve | 15.36kWh / 51.2V / 300Ah LiFePO4 |
| Continuous AC Output | 12kW / 220 or 230Vac / 50 or 60Hz |
| Instantaneous Output | 22000VA |
| Solar Charging Design | Dual MPPT / 5000W × 2 / 18A × 2 |
| PV Voltage Limits | 60–500Vdc MPPT / 500Vdc Maximum Voc |
| AC Charging Input | 230Vac / 170–280Vac or 90–280Vac / Automatic 50–60Hz Detection |
| Battery Charge and Discharge | 100A Maximum Continuous Charge / 200A Maximum Continuous Discharge |
| Transfer and Monitoring | 10ms or 20ms / LCD / RS232 / RS485 / CAN |
| Operating Environment | IP21 / Indoor Protected Area / ≤4000m Battery Altitude |
Yes, when the battery, solar array and load profile are correctly matched to the site.
That depends on the total overnight watt-hour consumption and the battery reserve retained by the system.
A compatible generator may be used when its voltage, frequency and continuous output meet the AC input requirements.
Possibly, but both running power and startup demand must be checked before selection.
Provide the 24-hour load schedule, peak power, motor startup demand, sunlight conditions and proposed solar array.
Send the appliances, operating hours and local solar conditions. We will review whether this compact 15.36kWh configuration provides the right balance of power and runtime.
Company Details
Business Type:
Manufacturer
Year Established:
15 Years
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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