
LiFePO4 High-Voltage Battery Storage System for Commercial Solar Solutions
The ESS-GRID S304 is a high-performance solar battery storage system, ideal for “behind-the-meter” microgrids, C&I energy backup, solar farms, community power generation, EV charging, and data center applications. With battery capacities ranging from 155 kWh to 241 kWh, it is designed to provide reliable, long-lasting power for industrial and commercial operations.
Powered by EVE 3.2V 304Ah LiFePO4 cells and featuring BSLBATT’s vehicle-grade battery modules, the ESS-GRID S304 offers a lifespan of up to 15 years and more than 6,000 cycles. Its multi-tier battery management system (BMS) ensures optimal performance, balancing, and monitoring for efficient energy management.



Feature Description
Long cycle life, >6000 cycles
High density, over 125wh/kg
Modular design for rapid expansion and installation

Equipped with an aerosol fire extinguisher
WIFI function, remote AOT one-click upgrade
Maximum 1C charge and discharge
Max. Parallel Connection of 10 Groups
Max. Capacity 2.49MWh

Technical Specifications
Model | S304-10 | S304-11 | S304-12 | S304-13 | S304-14 | S304-15 | S304-16 |
Rated Voltage(V) | 512 | 563.2 | 614.4 | 665.6 | 716.8 | 768 | 819.2 |
Rated Capacity(Ah) | 304 | ||||||
Cell Model | LFP-3.2V 304Ah | ||||||
System Configuration | 160S1P | 176S1P | 192S1P | 208S1P | 224S1P | 240S1P | 256S1P |
Rate Power(kWh) | 155.6 | 171.2 | 186.8 | 202.3 | 217.9 | 233.5 | 241.0 |
Charge Upper Voltage(V) | 568.0 | 624.8 | 681.6 | 738.4 | 795.2 | 852 | 908.8 |
Discharge Lower Voltage(V) | 456 | 501.6 | 547.2 | 592.8 | 638.4 | 684 | 729.6 |
Recommended Current(A) | 152 | ||||||
Max. Charging Current(A) | 200 | ||||||
Max. Discharging Current(A) | 200 | ||||||
Dimension(L*W*H)(MM) | High Voltage Control Box: 501*840*250 | ||||||
Single Battery Pack: 501*846*250 | |||||||
Number of Series | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
Communication Protocol | CAN BUS / Modbus RTU | ||||||
Host Software Protocol | CANBUS (Baud rate @500Kb/s or 250Kb/s) | ||||||
Operation Temperature Range | Charge:0~55℃ | ||||||
Discharge: -20~55℃ | |||||||
Cycle Life(25°C) | >6000 @80%DOD | ||||||
Protection Level | IP20 | ||||||
Storage Temperature | 0~35℃ | ||||||
Storage Humidity | 10%RH ~90%RH | ||||||
Internal Impedance | ≤1Ω | ||||||
Warranty | 10 years | ||||||
Battery Life | ≥15 years | ||||||
Weights(KG) | 1214 | 1329 | 1463 | 1578 | 1693 | 1808 | 1923 |