Voltertech Co.,Limited
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production |
| Low-Solar Recovery | Utility or Compatible Generator Charging |
| Solar Operating Method | Daytime Charging for Evening Use |
| Daily Energy Strategy | Short-Duration Loads with Controlled Runtime |
| Suitable Site Type | Small Homes, Cabins and Remote Work Points |
| Supply Ability | 5000 Units per Month |
| Project Review Input | Appliance List and Daily Operating Hours |
| Off-Grid Capacity Position | Compact Essential-Load Energy Reserve |
| Payment Terms | L/C,T/T,Western Union |
| Grid Relationship | Local Load Supply without Export |
| Load Priority Design | Essential Equipment before Flexible Loads |
| Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Certification | MSDS , UN38.3 |
| Model Number | ESS-4KWH-3.6KW-A-2 |
| Brand Name | Voltertech |
| Place of Origin | China |
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Product Specification
| Delivery Time | 10-15 Days for Samples; 30-40 Days for Bulk Production | Low-Solar Recovery | Utility or Compatible Generator Charging |
| Solar Operating Method | Daytime Charging for Evening Use | Daily Energy Strategy | Short-Duration Loads with Controlled Runtime |
| Suitable Site Type | Small Homes, Cabins and Remote Work Points | Supply Ability | 5000 Units per Month |
| Project Review Input | Appliance List and Daily Operating Hours | Off-Grid Capacity Position | Compact Essential-Load Energy Reserve |
| Payment Terms | L/C,T/T,Western Union | Grid Relationship | Local Load Supply without Export |
| Load Priority Design | Essential Equipment before Flexible Loads | Packaging Details | Heavy-Duty Wooden Case with Protective Foam |
| Certification | MSDS , UN38.3 | Model Number | ESS-4KWH-3.6KW-A-2 |
| Brand Name | Voltertech | Place of Origin | China |
| High Light | 3.6kW Off Grid Power Storage Systems ，3.84kWh Off Grid Power Storage Systems ，MPPT Solar Power Storage System | ||
3.84kWh 3.6kW Off Grid Energy Storage System with MPPT Solar Charging
This compact off grid energy storage system combines a 3.84kWh LiFePO4 battery, 3.6kW inverter and MPPT solar charging. It is designed for selected essential loads at small homes, cabins, remote offices and service points where daily energy use can be carefully managed.
The 3.84kWh battery is best used for a controlled group of loads rather than every appliance at the site. Lighting, routers, laptops and selected refrigeration can be prioritized according to their wattage and operating hours.
The inverter can supply up to 3.6kW continuously, but high power shortens the available operating period. Daily watt-hour consumption should therefore be calculated separately from peak load power.
The MPPT input supports a 60–500Vdc operating range, 500Vdc maximum open-circuit voltage and 18A input current. The proposed solar string must remain within these electrical limits.
When solar production is insufficient, a compatible utility or generator source can recharge the battery. The source must provide stable voltage and frequency within the inverter’s AC input range.
Two output channels allow essential equipment to be separated from flexible loads. The combined output remains 3.6kW, and motor startup demand should be checked before connection.
The system does not support grid export or parallel operation. Its role is to store energy and supply local loads from one standalone system.
| Off-Grid Energy Reserve | 3.84kWh LiFePO4 / 25.6V / 150Ah |
| Continuous AC Output | 3.6kW / 220 or 230Vac / Pure Sine Wave |
| Instantaneous Output | 5400VA |
| Solar Input Limits | 60–500Vdc MPPT / 500Vdc Maximum Voc / 18A |
| AC Recovery Input | 230Vac / 170–280Vac or 90–280Vac / Auto 50–60Hz |
| Maximum Charging Current | 100A PV, AC or Combined Charging |
| Communication | RS232 / RS485 / CAN / LCD |
| Transfer Reference | 10ms Computer Mode / 20ms Household-Appliance Mode |
| Installation Environment | IP22 / Dry Protected Area / No Grid Export |
Yes, when the solar array, stored energy and load profile are properly matched.
Operating time depends on total wattage, usage hours, conversion losses and the retained battery reserve.
A compatible generator may be used when its voltage, frequency and continuous output meet the AC input requirements.
No. Grid-connected export is not supported.
Provide appliance wattage, operating hours, motor startup power, sunlight conditions and solar-panel specifications.
Send your essential loads and daily operating hours. We will review whether the compact 3.84kWh configuration is sufficient.
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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