Cnntny 12V 250ah LiFePO4 Battery Pack for Solar Power System

• Type: Lithium-Ion Battery Pack
• Connection Mode: Series and Parallel
• Rechargeable: Chargeable
• Discharge Rate: Medium Discharge Rate
• Size: Large
• Accessories Type: Battery
• Model NO.: NY-12250
• Rated Capacity: 250ah
• Standard Voltage: 12V
• Usage: Solar Energy Storage
• Electrolyte: Li-ion
• Cycle Life: 3000times
• Battery Cell: Grade a
• Standard Charge Current: 50A
• Standard Discharge Current: 50A
• Pack Method: 4s5p
• BMS: 4s 100A Normal BMS
• Dimension: L430*W300*H175mm
• Transport Package: Safe Standard Export Cartons
• Specification: Customized
• Trademark: CNNTNY
• Origin: Jiangsu, China
• HS Code: 8507600090
• Production Capacity: 50000 Piece/Per Month

Product Description

 

Product Description

 

Item		Specification	Remarks
Typical Capacity		250Ah	0.5C discharge
Minimum Capacity		249Ah	0.5C discharge
Nominal Voltage		12.8V
Discharging Voltage (Min)		10V
Charging Voltage (Max)		14.4±0.05V
Charging Current(Std)		50A	0.2C(0 ~ +45°C)
Discharging Current(Std)		50A	0.2C(-20 ~ +60°C)
Max Charging Current		100A	1.0C(0 ~ +45°C)
Discharging Current(Max/Peak 3s)		200A	2.0C(-20 ~ +60°C)
Max continuous Discharging Current		100A	1.0C(5 ~ +45°C)
Internal Impedance		≤170mW	AC Impedance 1kHz
Cell Weight		30kg	About
Storage temperature range	< 1 Month	-20 ~ +60°C
	< 3 Month	-20 ~ +45°C
	<12 Month	-20 ~ +25°C
Charging temperature range		0 ~ +45°C

 

Full Charge	The charger supplies 0.2C constant current until battery voltage reaches 14.4V,then be changed at constant voltage of 10V while tapering the charge current to less than or equal to 0.01C.Charging time is 5.0 hours in all.
Capacity	Within 1 hour after fully charged, discharged at 0.5C continuously down to 10.0V.	100% capacity
	Within 1 hour after fully charged, discharge at 1.0C continuously down to 10.0V.	95% capacity
Cycle life	A battery unit shall be repeated 3000 charge/discharge cycles, charged at CC-CV(0.2C-28.8V) for 5 hours, discharged at 0.5C continuously down to 10.0V Cut-off Voltage, Measure discharge capacity.	80% capacity
Capacity retention	After fully charged, stored for 28 days at 20°C, then for 1 hour at normal temperature and continuously discharge at 0.2C to 10.0V.	Capacity retention rate ³ 95%

 

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