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51.2v 280Ah 14.3kWh Lithium battery pack

51.2v 280Ah 14.3kWh Lithium battery pack

Thickness: Max 72.5mm

Width: Max 174.5mm

Height: Max 208.5mm

Weight: 5.45kg

Overview
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Main specifications

1. Cell Battery specifications

Cell	No.	Item	General Parameter		Remark


	1	Rated Capacity	Typical	280Ah	Standard discharge（0.2C5A) after

			Capacity Range	280~310Ah
	2	Nominal Voltage	3.2V		Mean Operation Voltage

	3	Internal	≤0.20 mΩ		Internal resistance measured at AC 1KHZ after 50% charge The measure must uses the new batteries that within one week after shipment and cycles less than 5 times





	4	Dimension	Thickness:Max 72.5mm		Initial Dimension

			Width：Max 174.5mm
			Height：Max 208.5mm
	5	Weight	5.45kg		APPROX
	6	Standard charge	Constant Current 0.5C5A Constant Voltage 3.65V 0.02C5A cut-off		Charge time : Approx2.0h


	7	Rapid Charge	Constant Current 1C5A Constant Voltage 3.65V 0.01C5A cut-off		Charge time : Approx1.0h@≧10℃




	8	Standard discharge	Constant current 0.5C5A end voltage 2.5 V		140A


	9	Maximum discharge current	Constant current：1C5A end voltage：2.5 V		280A@≧0℃

2. Battery Pack specifications

Package	No.	Item	General Parameter		Remark
	1	Combination method	8S1P

	2	Rated Capacity	Typical	280Ah	Standard discharge after Standard charge
			Minimum	278Ah

	3	Factory Voltage	25.6V-27.2V(40-60%)		Mean Operation Voltage

	4	Voltage at end of Discharge	20.8V		Discharge Cut-off Voltage


	5	Charging Voltage	27.2-29.2V

	6	Internal Impedance	≤10mΩ		Internal resistance measured at DC
					after 50% charge

	7	Standard charge	Constant Current 56A(0.2C)		Charge time : Approx 5 h
			Constant Voltage see No.5
			0.02CA cut-off
	8	Standard discharge	Constant current：140A
			end voltage see NO.4
	9	Maximum Continuous	200A		≥10ºC
		Charge Current
	10	Maximum Continuous	200A		≥10ºC
		Discharge Current
	11	Operation Temperature	Charge: 0~45℃		60±25%R.H.
		Range			Bare Cell
			Discharge: -20~55℃
	12	Storage Temperature	Less than 12 months :		60±25%R.H.
		Range	-10~35℃		at the shipment state
			less than 3 months: -10~45℃
			Less than 7 day : -20~65℃
	13	Dimensions	455440240 mm		Include Bracket
	14	Weight	Approx：61.5kg

Appearance and structural dimensions

There shall be no such defect as scratch, bur and other mechanical scratch, and the connectorshould be no rust dirt. The structure and dimensions see attached drawing of the battery.

51.2v 280ah 14.3kwh lithium battery pack factory