2. Core Dimensions & Appearance Parameters
1. Overall Dimensions: 900*420*250mm (L*W*H)
2. Shell Material: SPCC, default white color, color and LOGO can be customized according to customer requirements
3. Terminal: M8 energy storage terminal for positive and negative poles by default, customizable
4. Matching Cables: 1.0m power cable + 1.5m communication cable by default, no parallel cable, cables can be customized
5. Product Weight: Approx. 120kg (subject to actual weight)
6. Protection Grade: IP20
7. Shipment SOC: Approx. 40%
3. Panel Structure & Interface Definition
|
No. |
Function Description |
Silk Screen |
Remarks |
|
1 |
Connecting Terminal |
- |
Positive Pole Interface |
|
2 |
Connecting Terminal |
- |
Negative Pole Interface |
|
3 |
Ground Interface |
GND |
M4 Specification |
|
4 |
Reset Button |
RESET |
Reset Function |
|
5 |
DIP Switch |
ADS |
- |
|
6 |
Dry Contact |
Main connector |
- |
|
7 |
RS485 Communication Port |
RS485 |
General Communication |
|
8 |
CAN Communication Port |
CAN |
General Communication |
|
9 |
RS232 Communication Port |
RS232 |
General Communication |
|
10 |
Parallel Communication Port |
RS485A/RS485B |
RS485 for Parallel Use Only |
|
11 |
Weak Current Switch |
ON/OFF |
Main Switch |
|
12 |
Indicator Light |
- |
SOC Display |
|
13 |
Indicator Light |
RUN |
Running Status Indication |
|
14 |
Indicator Light |
Alarm |
Alarm Status Indication |
|
15 |
Circuit Breaker |
ON |
Circuit Breaker Closing |
|
16 |
Circuit Breaker |
OFF |
Circuit Breaker Opening |
4. Core Battery Technical Specifications (@25℃)
|
Item |
Technical Parameter |
|
Nominal Capacity |
314Ah |
|
Minimum Capacity |
314Ah |
|
Nominal Energy |
16.076KWh |
|
Cell Combination Structure |
16S1P |
|
Nominal Voltage |
51.2V |
|
End of Discharge Voltage |
43.2V |
|
Max Standard Charging Voltage |
MAX 58.4V |
|
Recommended Charging Current |
≤60A |
|
Max Continuous Charging Current |
200A |
|
Standard Discharging Current |
60A |
|
Recommended Discharging Current |
≤100A |
|
Max Continuous Discharging Current |
200A |
|
Peak Discharging Current |
|
|
Internal Resistance |
≤30mΩ |
|
Working Altitude |
≤3000 metre |
|
Working Humidity |
5%~95% |
|
Discharging Working Temperature |
-10°C~60°C |
|
Charging Working Temperature |
0°C~45°C |
|
Product Certification |
UN38.3, MSDS |
|
Communication Interface |
RS-485/RS-232/CAN, Wi-Fi and Bluetooth optional |
|
Inverter Communication Protocol |
Full protocol optional |
5. Electrical Performance Indicators
Test Conditions: 25℃, Humidity 45%~75%
1. Nominal Capacity: ≥314Ah when discharged at 0.2C to cut-off voltage after standard charging
2. Initial Internal Resistance: ≤30mΩ when tested at 1kHz AC under 50% SOC condition
3. Short Circuit Protection: The battery automatically disconnects the load when positive and negative poles are short-circuited with 0.1Ω resistor
4. Discharge Temperature Characteristic: Discharge capacity retention rate ≥70% (-10℃), ≥85% (0℃), ≥100% (25℃), ≥95% (55℃) under different temperature and humidity conditions
5. Normal Temperature Discharge Performance: At 25℃, 0.2C discharge capacity ≥100% of nominal capacity, 1C discharge capacity ≥95% of nominal capacity
6. Capacity Retention Rate: Keep capacity >90% after open-circuit storage for 28 days, recover capacity >95% after standard charging
7. Cycle Life: ≥6000 cycles under DOD80% condition (cycle with 0.5C charge/discharge and 1h standing)
6. BMS Protection Circuit Core Parameters
(Factory Default Parameters, All Customizable)
6.1 Cell Overcharge/Overdischarge Protection
|
Protection Type |
Alarm Parameter |
Protection Parameter |
Delay |
Release Parameter |
|
Cell Overcharge |
3550mV (3.50-3.60V customizable) |
3650mV (3.60~3.75V customizable) |
1.0S (0.5~2.0S customizable) |
Voltage 3400mV (3.4~3.5V customizable); SOC<96% (95%~99% customizable); Discharging current>1A |
|
Cell Overdischarge |
2800mV (2.5~3.0V customizable) |
2700mV (2.3~2.7V customizable) |
1.0S (0.5~2.0S customizable) |
Voltage 2950mV (2.5~3.0V customizable); Activated by connecting charger |
6.2 Total Overcharge/Overdischarge Protection
|
Protection Type |
Alarm Parameter |
Protection Parameter |
Delay |
Release Parameter |
|
Total Overcharge |
56V (55~58V customizable) |
58.4V (57~58.4V customizable) |
1.0S (0.5~2.0S customizable) |
Voltage 54.0V (54~56.0V customizable); SOC<96% (95%~99% customizable); Discharging current>1A |
|
Total Overdischarge |
44.8V (44.8~50V customizable) |
40V (40~47V customizable) |
1.0S (0.5~2.0S customizable) |
Voltage 47.2V (43.2~48.0V customizable); Activated by connecting charger |
6.3 Overcurrent/Short Circuit Protection
|
Protection Type |
Alarm Parameter |
Protection Parameter |
Delay |
Release Parameter |
Remarks |
|
Charging Overcurrent |
205A (200~205A customizable) |
210A (210~220A customizable) |
1.0S (0.5~2.0S customizable) |
Automatically released after 1min; Discharging current>1A |
Locked after 10 consecutive occurrences, no automatic release |
|
Discharging Overcurrent 1 |
205A (201~205A customizable) |
210A (210~220A customizable) |
1.0S (0.5~2.0S customizable) |
Automatically released after 1min; Charging current>1A |
Locked after 10 consecutive occurrences, no automatic release |
|
Discharging Overcurrent 2 |
- |
≥250A (220~250A customizable) |
100mS (50~500mS customizable) |
Automatically released after 1min; Charging current>1A |
Locked after 10 consecutive occurrences, no automatic release |
|
Short Circuit Protection |
- |
≥350A |
≤300uS |
Released by connecting charger |
- |
7. Product Usage Specifications
1. Single battery can be used directly;
2. For parallel use, each battery must be fully charged according to the standard charging method before parallel connection;
3. The maximum number of parallel batteries shall not exceed 15;
4. Standard Charging Method: Charge in CC(0.2C)CV(58.4V) mode until the current drops to 0.02C, then stand for 1h;
5. Use matching or special charging equipment for lithium batteries for charging.
8. Transportation & Storage Requirements
8.1 Storage Requirements
1. Keep SOC at 30%~50% for long-term storage, high SOC storage will accelerate capacity attenuation;
2. Storage Environment Requirements:
- ≤1 Month: -10~+60°C, 5~75%RH;
- ≤6 Months: -5~+45°C, 5~75%RH;
- Recommended Environment: 15~+35°C, 5~75%RH;
3. Idle batteries need to complete one charge-discharge cycle every 6 months.
8.2 Transportation Requirements
1. No falling or impact during loading and unloading;
2. No more than 5 layers of stacking, no overturning, keep the battery face up.
9. Safety Warnings & Precautions
9.1 Core Warnings
1. Keep the battery away from heat sources and high-voltage areas, avoid long-term exposure to sunlight;
2. Do not throw the battery into water or fire, and do not short-circuit the positive and negative poles with metal;
3. Do not reverse the positive and negative poles during wiring;
4. Avoid severe vibration and impact to the battery, do not hit, drop or step on the battery;
5. Do not disassemble or assemble the battery without manufacturer's permission and guidance;
6. Do not mix with batteries of other manufacturers, types and models.
9.2 Usage Precautions
1. Use or storage in high temperature environment will cause battery heating, fire or service life reduction;
2. Charge the battery in time (within 15 days) after discharging to the cut-off voltage;
3. Stop using immediately if the battery has abnormal conditions such as peculiar smell, discoloration, abnormal noise, leakage or severe deformation;
4. If electrolyte leaks and splashes into skin/eyes, rinse with clean water immediately and seek medical attention;
5. Keep the battery out of the reach of children and pets;
6. The manufacturer shall not be liable for any battery damage or accidents caused by non-compliance with this specification.
