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1. Ultra-long Cycle Life Delivers 6000 cycles at 25°C and 80% DOD (Depth of Discharge), effectively reducing the total cost of ownership throughout the product lifecycle.
2. Durable Service Life Adopts stable chemical composition with low maintenance requirements, ensuring long-term stable operation and high cost performance.
3. Built-in Multi-circuit Protection Integrated professional BMS (Battery Management System) prevents battery abuse such as overcharging, overdischarging, overcurrent and short circuit, securing battery safety.
4. Excellent Storage Performance Features an extremely low self-discharge rate with no sulfation risk, supporting up to 6 months of long-term static storage.
5. High-efficiency Fast Charging Superior charge and discharge conversion efficiency shortens charging time and reduces equipment standby downtime.
6. Outstanding High Temperature Resistance Adaptable to harsh high-temperature working environments, with a maximum ambient temperature resistance of up to +60°C for wider application scenarios.
7. Multiple Compatible Communication Protocols Supports mainstream protocols including RS485, RS232 and CAN for flexible system matching.
8. Strong Equipment Compatibility Fully compatible with most mainstream photovoltaic energy storage inverters on the market.
Item | GWB25.6-100 | GWB25.6-200 | GWB51.2-100 | GWB51.2-200 | GWB51.2-280 | GWB51.2-314 |
|---|---|---|---|---|---|---|
Rated Voltage | 25.6V | 25.6V | 51.2V | 51.2V | 51.2V | 51.2V |
Nominal Capacity | 100Ah | 200Ah | 100Ah | 200Ah | 280Ah | 314Ah |
Nominal Energy | 2.56kWh | 5.12kWh | 5.12kWh | 10.24kWh | 14.36kWh | 16.07kWh |
Cell Specification | 3.2V 100Ah | 3.2V 200Ah | 3.2V 100Ah | 3.2V 200Ah | 3.2V 280Ah | 3.2V 314Ah |
Configuration | 8S-1P | 8S-1P | 16S-1P | 16S-1P | 16S-1P | 16S-1P |
Charge Cut-off Voltage | 29.2V | 29.2V | 57.6V | 57.6V | 57.6V | 57.6V |
Discharge Cut-off Voltage | 22.4V | 22.4V | 43.2V | 43.2V | 43.2V | 43.2V |
Max Continuous Charging Current | 50A | 100A | 50A | 100A | 100A | 100A |
Max Continuous Discharging Current | 100A | 200A | 100A | 200A | 200A | 200A |
Dimension (L*W*H) mm | 390×370×160 | 600×370×160 | 600×370×160 | 850×500×160 | 800×512×260 | 800×523×260 |
Net Weight (kg) | 24 | 41.2 | 41.2 | 80 | 124.3 | 130 |
Parallel Connection | Max 16 units | Max 16 units | Max 16 units | Max 16 units | Max 16 units | Max 16 units |
BMS Communication | RS485, CAN | RS485, CAN | RS485, CAN | RS485, CAN | RS485, CAN | RS485, CAN |
Design Lifespan (25°C) | 15 years | 15 years | 15 years | 15 years | 15 years | 15 years |
Cycle Life (80% DOD, 25°C) | 6000 cycles | 6000 cycles | 6000 cycles | 6000 cycles | 6000 cycles | 6000 cycles |
Charging Efficiency | ≥98% | ≥98% | ≥98% | ≥98% | ≥98% | ≥98% |
Shipping State of Charge | 30%~50% SoC | 30%~50% SoC | 30%~50% SoC | 30%~50% SoC | 30%~50% SoC | 30%~50% SoC |
Operating Temperature | Charge: 0~55°CDischarge: -10~55°C | Charge: 0~55°CDischarge: -10~55°C | Charge: 0~55°CDischarge: -10~55°C | Charge: 0~55°CDischarge: -10~55°C | Charge: 0~55°CDischarge: -10~55°C | Charge: 0~55°CDischarge: -10~55°C |
Storage Temperature | -20~60°C | -20~60°C | -20~60°C | -20~60°C | -20~60°C | -20~60°C |
Q1: Is the installation complicated? What are the installation requirements?
A: The battery adopts a wall-mounted design with matched mounting brackets, which can be fixed directly on the wall without occupying floor space. The installation only requires the wall to meet load-bearing standards, the environment to be ventilated and dry, and keep away from humid conditions and heat sources.
Q2: Can it be matched with photovoltaic inverters?
A: It is suitable for 24V/25.6V low-voltage off-grid photovoltaic and energy storage inverters. Equipped with built-in RS485/CAN communication ports, it is compatible with most mainstream inverters on the market, supporting photovoltaic charging and automatic backup power switching during power outages.
Q3: Can multiple batteries be connected in parallel for capacity expansion? What is the maximum parallel quantity?
A: Batteries of the same model and batch support parallel expansion. A maximum of 4 to 8 units can be connected in parallel conventionally, realizing unified voltage stabilization and synchronous charge-discharge to meet large-capacity energy storage demands.
Q4: Is the battery low-temperature resistant and available for normal use in winter?
A: For the standard version, the charging temperature ranges from 0℃ to 45℃, and the discharging temperature ranges from -10℃ to 55℃. The capacity will slightly attenuate in low-temperature environments. A low-temperature heating version is optional, which supports normal charging and operation even in sub-zero environments in northern regions.
Q5: Does the battery require daily maintenance?
A: The battery is almost maintenance-free. Just keep the installation environment ventilated and dry in daily use. For long-term idle storage, it is recommended to maintain the SoC at 50%-70% andrecharge the battery every 3 to 6 months.
