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| Place of Origin: | Guangdong, China (Mainland) |
| Brand Name: | OEM/PAC |
| Certification: | ISO9001, ISO14001, UL, CE, ROHS, etc |
| Model Number: | 48v 250Ah |
| Minimum Order Quantity: | 1set |
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| Price: | Negotiable |
| Packaging Details: | Standard export carton, wooden case, pallet. |
| Delivery Time: | 4weeks for samples; 6~8weeks for mass production |
| Payment Terms: | T/T, Western Union, Paypal |
| Supply Ability: | 3Gwh per year |
| Features: | Long Cycle Life Lithium Battery For Backup | Typical Capacity: | 250Ah |
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| Weight: | About 180kgs | Protocol: | RS232, RS485, CANbus, Modbus Etc |
| Battery Application: | UPS Backup, 4G/5G Base Station | Battery Cycle: | Up To 6000 Times |
| Warranty: | Up To 10 Years | Battery Energy: | 12kwh |
| High Light: | 250Ah UPS Rechargeable Battery Modules,12kwh UPS Rechargeable Battery Modules,RS232 Ups Battery Pack |
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Cabinet type 48v 250Ah UPS rechargeable battery modules in parallel
1. Instruction of 48v 250Ah UPS battery
The 12kwh ESS Lithium iron Phosphate battery pack, is using prismatic high safety LiFePO4 battery cell, with 250Ah capacity, to provide 12kW emergency backup power. The battery pack is widely used in UPS and solar energy storage system, to ensure nomal supply of electric power in case the AC fail. The battery modules are installed in standard 19”cabinets and work with on grid/off grid hybrid inverter. There are 5pcs of 48v 50Ah battery modules connected in parallel.
2. Product circuit principle of 12kWh UPS battery pack
12KW Product management system is made up of 5 independent unit BMS.
Unit BMS refers to the built-in within 48v battery module, used for acquisition of monomer battery parameters, such as monomer voltage, total voltage, charge/discharge current, capacity, battery temperature etc, used for battery charging and discharging process management, and effective protection and alarm function of the circuit system (protection and alarm functions), by collecting and protection circuit, electrical and communication interface and thermal management devices and so on.
3. Application of 12kwh ESS LiFePO4 battery
1. Energy Storage
--Solar-Wind Power System / City Grid (On/Off) / Community and Family
2.Back-up System and UPS
--Telecom Base / CATV system / Computer Server Center / Medical Instrument / Military Equipment
4. Specification of 12kwh UPS cabinet type LiFePO4 battery(@Battery initial Temp25±5℃)
| No. | Item | General Parameter | Remark |
| 1.1 | Description |
Cabinet type 48v 250Ah UPS rechargeable battery modules in parallel |
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| 1.2 | Cell Type | 50Ah LiFePO4 battery cell | |
| 1.3 | Typical Capacity | 250Ah | |
| 1.4 | Typical Voltage | 48V | |
| 1.5 | Typical power | 12kWh | |
| 1.6 | Communication | It has CANbus and RS485 standard communication interface, it can real-time monitoring the capacity of battery bank, the voltage, current, environment temperature, and charging/discharging current. |
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| 1.7 | Battery combination | 15S5P | |
| 1.8 | Charging voltage | 54.75V | |
| 1.9 | End voltage | 30~37.5V | |
| 2.0 | Standard charge current | 50A | |
| 2.1 | Internal Impedance | ≤100mΩ | |
| 2.2 | Max. continuous charge current | 125A | |
| 2.3 | Standard discharge current | 50A | |
| 2.4 | Max. continuous discharge current | 250A | |
| 2.5 | Cycle life | ＞2000 times | |
| 2.6 | Weight | 180kgs | |
| 2.7 | Dimension | customized | |
| 2.8 | Operation Temperature Range | Charge 0~45℃, Discharge -20~55℃ | |
| 2.9 | Storage Temperature & Humidity Range | Less than 1 month:-20℃～45℃,45%RH～75％RH | |
| Less than 3 months:-10℃～35℃,45%RH～75％RH | |||
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Recommended storage environment: 15℃～35℃,45%RH～75％RH |
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| 3.0 |
Long time storage: If the battery need be stored for a long time, the voltage should be at 50%SOC, and stored in the condition as storage proposal. It needs at least one charge & discharge cycle every six months. |
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We warmly welcome OEM design inquiry! We can make customized battery pack specially for you!
5. BMS Protect parameter of 48V 250Ah UPS battery
| Items | Details | Standard |
| Cell overcharge protection | Overcharge detection voltage | 3.65±0.025V |
| Overcharge detection delay time | Typical:1.0s | |
| Overcharge release voltage | 3.34±0.02V | |
| Cell over-discharge protection | Over-discharge detection voltage | 2.7±0.02V |
| Over-discharge detection delay time | Typical:1.0s | |
| Over-discharge release voltage | 2.9±0.02V or charge release | |
| Over-current protection | discharge Over-current protection current1 | 300±10A |
| discharge Over-current detection delay time 1 | 5S | |
| discharge Over-current protection current 2 | 350±10A | |
| discharge Over-current detection delay time 2 | 500ms | |
| Charge OC protection current | 150±10A | |
| Short protection | Short protection current | 500±10A |
| Protection condition | Load short | |
| Detection delay time | ≤300us | |
| Protection release condition | Charging release | |
| Temperature(T) protection | Charge high T protection | 55±3℃ |
| Charge high T recover | 50±5℃ | |
| Discharge high T protection | 65±5℃ | |
| Discharge high T recover | 60±5℃ | |
| Charge low T protection | ‘-5±2℃ | |
| Charge low T recover | 0±5℃ | |
| Discharge low T protection | -20±5℃ | |
| Discharge low T recover | ’-20±5℃ | |
| Balance | Balance threshold voltage | 3.45V |
| Communication | It has CANBus and RS485 standard communication interface, it can real-time monitoring the capacity of battery bank, the voltage, current, environment temperature, and charging/discharging current. |
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| Alarm | It has over-temperature, over charge, under-voltage, over-current, short circuit alarm function. | |
6. Delivery of 12kwh cabinet type 48v battery pack
• By Air with Door to Door Service
• By Sea with Door to Door Service
• By Express with Door to Door Service: DHL, TNT, UPS, FedEx etc.
7. Why Choose PAC Technology Co., Ltd?
Reliable quality -- We have more than 10 years of rechargeable lithium battery industry experience. Automated battery production line and precise equipment. In strict accordance with international standards for production inspection, to ensure battery quality and safety.
Positive service -- We give response for all inquiries/questions in 12 hours. We have a professional battery R&D team. We can provide professional customized and one-stop services.
Taking responsibility -- PAC Battery members to proactively take responsibility, we always offer the best Battery Solution to our customers.
PAC Battery provides 24 hours customer service. Waiting for your inquiry!
Contact Person: Ada Wang
Tel: 0086 13652343280
