Voltertech Co.,Limited
| Solar Input Architecture | 9kW Single MPPT / 15kW Dual MPPT |
| Available Storage Energy | 25.6kWh Rated / 23.04kWh Usable |
| Supply Ability | 5000 Sets per Month |
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| Short-Duration Surge Power | 24kVA |
| Payment Terms | L/C,T/T,Western Union |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Integrated Output Platform | 12kW Pure Sine Wave |
| Supported Energy Sources | Solar / Utility / Generator |
| Integrated Load Management | Dual AC Output |
| Monitoring Interface | LCD / WiFi / USB |
| Stackable Battery Layout | Five 5.12kWh LiFePO4 Modules |
| Model Number | ESS-25KWH-12KW-Q |
| Brand Name | Voltertech |
| Certification | MSDS |
| Place of Origin | China |
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Product Specification
| Solar Input Architecture | 9kW Single MPPT / 15kW Dual MPPT | Available Storage Energy | 25.6kWh Rated / 23.04kWh Usable |
| Supply Ability | 5000 Sets per Month | Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| Short-Duration Surge Power | 24kVA | Payment Terms | L/C,T/T,Western Union |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam | Integrated Output Platform | 12kW Pure Sine Wave |
| Supported Energy Sources | Solar / Utility / Generator | Integrated Load Management | Dual AC Output |
| Monitoring Interface | LCD / WiFi / USB | Stackable Battery Layout | Five 5.12kWh LiFePO4 Modules |
| Model Number | ESS-25KWH-12KW-Q | Brand Name | Voltertech |
| Certification | MSDS | Place of Origin | China |
| High Light | ESS Energy Storage System 12kW ，ESS Energy Storage System 25kWh ，Five Module All In One ESS | ||
Five-Module 12kW 25kWh All In One Energy Storage System with Dual MPPT
This 12kW 25kWh all in one energy storage system combines pure sine wave inverter output, five stackable LiFePO4 battery modules, dual MPPT solar charging, dual AC output and WiFi monitoring in one coordinated platform.
Five 5.12kWh battery modules provide 25.6kWh of rated energy and approximately 23.04kWh of usable storage at 90% depth of discharge. The configuration offers more backup reserve than the 15kWh and 20kWh versions while remaining more compact than a 30kWh battery bank.
It is suitable for villas, large homes, home offices, small shops and solar backup projects requiring high inverter output with a practical modular battery capacity.
The solar charger supports up to 9kW of photovoltaic input with one MPPT or up to 15kW when both MPPT channels are used. Separate tracking channels can support suitable solar strings installed on different roof areas.
Solar generation can supply compatible daytime loads and charge the battery. Utility input or a compatible generator can provide another charging source during prolonged outages or periods of low solar production.
| AC Connection | 220 / 230 / 240Vac; L + N + PE |
|---|---|
| AC Input Range | 90–280Vac Normal Mode / 170–280Vac UPS Mode |
| Frequency and Power Factor | 50Hz / 60Hz Auto Detection / PF 1.0 |
| Transfer Response | 10ms APP / UPS Mode; 20ms Generator Mode |
| PV Operating Limits | 90–485Vdc MPPT / 500Vdc Maximum Open-Circuit Voltage |
| Charging Current Limits | 160A PV / 160A AC / 160A Combined |
| Battery Voltage Platform | 51.2Vdc Nominal / 40.5–54.5Vdc Operating Range |
| Installation Environment | IP20 / -10°C to 50°C / Dry Indoor Area |
| Module Size and Weight | Inverter: 540 × 480 × 180mm / 27kg; Battery: 540 × 480 × 164mm / 45kg Each |
The system uses five 5.12kWh battery modules, providing 25.6kWh of rated energy and approximately 23.04kWh of usable storage at 90% depth of discharge.
It provides more reserve than the 20kWh version while using fewer battery modules than a 30kWh battery bank.
Yes. Dual MPPT supports suitable separate photovoltaic strings when each channel follows the specified power, current and voltage limits.
Generator operation is supported when its voltage, frequency and available power match the system requirements.
The IP20 system requires a dry indoor location with stable support, ventilation, cable access and adequate service clearance.
This 12kW 25kWh all in one energy storage system is suitable for solar distributors, installers and project developers requiring modular battery storage, high inverter output and dual MPPT solar charging.
Planning a five-module 12kW solar storage project?
Company Details
Business Type:
Manufacturer
Year Established:
15 Years
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
About Voltertech Co., Limited Voltertech Co., Limited is a professional provider of energy storage systems and renewable energy solutions, serving distributors, solar installers, EPC contractors, wholesalers, and project developers worldwide. Our product portfolio includes residential energy st... About Voltertech Co., Limited Voltertech Co., Limited is a professional provider of energy storage systems and renewable energy solutions, serving distributors, solar installers, EPC contractors, wholesalers, and project developers worldwide. Our product portfolio includes residential energy st...
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