2.5kwh Portable Power Station
Classification :
PRODUCT DETAILS
1.1 Product Introduction
The 2.5kWh suitcase-type energy storage system adopts an integrated design, integrating battery pack, inverter and photovoltaic module. It can be used off-grid with a maximum inversion power of 2.4KW, outputting 230V/120V (optional). It has the following core features:
High mobility: Suitcase design for excellent portability.
Multiple protections: Integrated comprehensive protection mechanisms for overcurrent/overcharge/overdischarge/overtemperature/short circuit/disconnection.
Intelligent management: Supports CAN/RS-485 communication interfaces, adopts Kalman filtering algorithm to estimate the SOC of each battery string with an accuracy of ≤5%, optimizing battery usage and extending service life to the maximum extent.
Innovative structure: Adopts integrated compact design.
1.2 System Basic Introduction
The following diagram shows the system application scenario of this product. A complete system includes the following parts:
1. Photovoltaic module: Converts light energy into DC power, charges the battery through the inverter, or directly inverts to AC power for load supply.
2. Mains power: Can be connected to the AC input terminal to power the load and charge the battery simultaneously. If no mains power is connected, the system can still operate normally, with the load powered by the battery and photovoltaic module.
3. Load: Various household and office loads can be connected, including lamps, TVs, fans and other AC loads.
The specific system wiring method depends on the actual application scenario.
1.3 Product Features
| ① | Handle | ⑤ | On/Off Switch |
| ② | AC Output Socket | ⑥ | Fault Light |
| ③ | Battery Level Indicator | ⑦ | Running Light |
| ④ | PV Input Port | ⑧ | AC Input Socket |
1.4 Dimension Drawing
Chapter 2 Installation Instructions
2.1 Installation Precautions
Before installation, please read this manual carefully and familiarize yourself with the installation steps.
Loose connections and corroded wires may cause excessive heating, melting of wire insulation, burning of surrounding materials, or even fire. Ensure all connectors are tightly secured and wires are properly fastened with cable ties to prevent loosening due to wire shaking during mobile use.
System connecting wires should be selected according to a current density not exceeding 5A/mm2.
Avoid direct sunlight and rain infiltration when using outdoors.
After the power switch is turned off, there is still high voltage inside the equipment. Do not open or touch internal components.
Do not install the equipment in harsh environments such as humid, greasy, flammable, explosive, or dusty areas.
2.2 Pre-installation Inspection
1. Packaging inspection:
Before opening the equipment packaging, check for any visible damage on the outer packaging, such as holes, cracks, or other signs of possible internal damage. If there is any abnormality in the packaging or model of the all-in-one machine, do not open it and contact us as soon as possible.
2. Delivery inspection:
After opening each package, check if the delivered items are complete and if there is any visible external damage. If any items are missing or damaged, please contact us.
| Serial No. | Image | Name | Quantity | Specification | Remarks |
| 1 |  |
2.5kWh Battery Box | 1 | 470*205*482mm |
2.3 Tool Preparation
| Category | Tools and Measuring Instruments | ||
| Installation Tools |  |
||
2.4 Installation Location Selection
Ensure sufficient air circulation. Leave at least 200mm of space at the air outlets on both sides of the equipment to ensure natural convection cooling. Refer to the following diagram.
Warning: Risk of explosion! Never install the equipment in the same enclosed space! Do not install in a confined area where battery gases may accumulate.
2.5 Equipment Installation
1. Take out the all-in-one machine from the packing box.
2. Tighten the casters.
2.6 Equipment Wiring
The equipment interface diagram is as follows:
1. As shown in the diagram above, No. 2, AC output socket, connect to the load.
2. No. 4, PV input port, connect to the solar panel.
3. No. 8, AC input socket, connect to mains power.
2.7 Power On/Off
1. Equipment power on/off:
1) Press and hold the power button until the running light turns on.
2) Press and hold the power button until the running light turns off.
Chapter 3 Working Modes
3.1 Inversion Mode
When there is no mains power, the battery passes through the buck-boost unit to boost the low-voltage DC to high-voltage DC bus, which is then converted to AC power by the DC/AC full-bridge inversion unit to power the load.
3.2 Mains Charging Mode
When there is mains power, the mains passes through the switching unit to power the load, and simultaneously charges the battery through the full-bridge inversion unit/buck-boost unit.
3.3 PV Charging Mode
When a photovoltaic panel is connected to the DC input port, the system activates the MPPT charging mode. Since this interface also serves as an adapter input interface, the software will determine whether a photovoltaic panel or an adapter is connected based on the disturbance results.
Chapter 4 Fault Description
Battery fault ---------------------> Fault light on continuously
Inverter fault -----------------> Fault light blinking every 500ms
System fault ---------------------> Fault light blinking every 1000ms
PV fault ---------------------> Fault light blinking every 2000ms
Note: After a fault occurs, the system needs to be restarted to recover
Chapter 5 System Maintenance
To maintain optimal long-term performance, it is recommended to perform the following inspections twice a year:
Ensure that airflow around the equipment is not blocked, and remove any dirt or debris from the heat sink.
Check if all exposed wires have insulation damage due to sunlight, friction with other objects, dry rot, insect or rodent damage, and repair or replace wires if necessary.
Verify that the indicators match the equipment operation. Pay attention to any fault or error displays and take corrective actions if necessary.
Check all terminals for corrosion, insulation damage, high temperature or burning / discoloration, and tighten terminal screws.
Check for dirt, nesting insects and corrosion, and clean as required.
Warning: Risk of electric shock! When performing the above operations, ensure that all power supplies of the equipment are disconnected, and all capacitor power is discharged before conducting corresponding inspections or operations!
The company shall not be liable for damages caused by the following circumstances:
Damage caused by improper use or use in inappropriate places.
Photovoltaic module open circuit voltage exceeds the maximum allowable voltage.
Damage caused by working environment temperature exceeding the limited working temperature range.
Unauthorized disassembly and repair of the inverter.
Damage caused by force majeure: damage occurring during transportation or loading and unloading.
Chapter 6 Technical Parameters
| Item | Technical Parameters | QHL-BX-25/24 |
| Battery Pack | Available Capacity (KWH) | 2.56 |
| Cell Type | LFP (Lithium Iron Phosphate) | |
| Rated Voltage (VDC) | 51.2 | |
| Working Voltage Range (VDC) | 44.8-57.6 | |
| Maximum Charging Current (A) | 25 | |
| Maximum Discharging Current (A) | 50A | |
| Peak Charging Current (A) | 28~45A@2min 46~50A@30s | |
| Peak Discharging Current (A) | 55~60A@2min 61~80A@30s | |
| Charging Temperature Range (℃) | 0-55 | |
| Discharging Temperature Range (℃) | -20-60 | |
| Communication Method | RS485 (default)/CAN | |
| Photovoltaics | Input Voltage (VDC) | 12-75 |
| Maximum Input Current (A) | 25 | |
| Maximum Output Power (W) | 1200 | |
| Connector (Wire End) | XT60U-F | |
| Inverter | Rated Output Power (W) | 2400 |
| Rated Output Voltage (VAC) | 120/230 (±10%) | |
| Frequency (Hz) | 50 | |
| Working Temperature (℃) | -20 to 40 (Derate when temperature exceeds 40℃) | |
| Storage Temperature (℃) | -40 to 60 | |
| Maximum Mains Charging Power (W) | 1800 | |
| UPS Function | Supported | |
| UPS Switching Time (ms) | ≤10 | |
| Relative Humidity | 0%-95% | |
| Heat Dissipation Method | Forced Air Cooling | |
| Maximum Operating Altitude (m) | 2000 |
CASE SHOWCASE
Robotic Arm Disassembly Line
Automation
Solar storage and electric vehicle charging station
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Add : Ping'an North Road, Ping'an Street, Changqing District, Jinan City, Shandong Province
