Rosen Solar GEL series are valve regulated lead-acid cells which use a combination of tubular positive plate woven gauntlets, pasted negative plate design and GEL electrolyte using advanced filling techniques in production which assure superior service life and excellent battery reliability. The battery has excellent cyclic performance and charge acceptance ability. It can be used in high-low temperature environment and poor grid condition. 

Narada Quality Gel Battery 2V 500ah for Power Storage, GEL2-500
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Key Features:
♦Long service life according to EUROBAT Classification
♦Up to 2200 deep discharge cycles 
♦High gas recombination efficiency 
♦Wide suitability of ambient temperature range 
♦Low self discharge

Applications:
♦Solar and wind energy storage system 
♦EPS and UPS battery backup 
♦Signal system , emergency lighting system , security system
♦Telecommunication Equipment 
♦Power plant and transmission system

Complied standards
♦ IEC 60896-21/22
♦ DIN40742
♦ IEC61427
♦ YD/T1360
♦ EUROBAT guide, long life BS6290 part 4

2V Series Technical Data

1, Function Parameter		5, Environment Temperature
Norminal Voltage	2V	Discharge Temperature	-20-50ºC
Norminal Capacity(10 hours rate)	500Ah	Charge Temperature	-10-50ºC
Numbers of Cells	1cell	Storage Temperature	-20-60ºC
2, Rated Capacity at 25ºC(77ºF)		6, Inner Resistance & Max. Discharge Current
10 hour rate(0.1C, 1.80V/cell)	500Ah	Fully Charge Battery at 25ºC(77ºF)	0.42mΩ
3 hour rate(0.25C, 1.75V/cell)	369Ah	Max. Discharge Current	800A(5s)
1 hour rate(0.55C, 1.60V/cell)	254Ah	Short Circuit Current	4200A
3, Capacity affected by Temperature(10 hour rate)		7, Self-discharge@25ºC(77ºF)
40ºC(104ºF)	102%	Capacity after 3 Month Storage	92%
25ºC(77ºF)	100%	Capacity after 6 Month Storage	84%
0ºC(32ºF)	90%	Capacity after 9 Month Storage	74%
-15ºC(5ºF)	70%	Capacity after 12 Month Storage	65%
4, Constant Voltage Charging at 25ºC(77ºF)		8, Dimension & Weight
Cycle Charge	2.35-2.4V	Length	242mm
Maximum Charging Current	125A	Width	172mm
Temperature Compensation	-5mV/ºC	Height	331mm
Float Charge	2.23-2.27V	Total Height	356mm
Temperature Compensation	-3.3mV/ºC	Reference Weight	30kgs

♦ Our battery factory Founded in 2008 , 2million batteries annual production capacity 
♦ Products including valve regulated lead acid battery, Gel battery, deep cycle battery, OPzV and OPzS battery 
♦ Products are exported to more than 100countries 
♦ Products are certified by CE, UL,Rohs 
♦ Mature and very well respected AGM and GEL technologies for valve-regulated lead-acid batteries ranging from 2Ah to 3000Ah

GEL Battery Contruction

A. Electrolyte: Be immobilized in the cell through the use of a gelling agent or absorbed in the separators and plates.The cells shall have no residual free or bulk liquid electrolyte.
B. Separators: Made of fiberglass. Be porous to electrolyte but electrically insulating. 
C. Container & Cover: Cell containers and covers shall be made of a high impact, flame-retardant plastic
D. Terminal: Terminal posts shall be cast in lead or lead alloy and have a copper core insert.
E. Valve: The valve operate at the pressure limits specified. The valve will not allow ingress of outside air into the unit.

Element	Electrolyte	Positive Plate	Negative Plate	Container
Material	Colloidal silicon	Lead dioxide	Lead	ABS

Element	Cover	Safety valve	Terminal/Wire	Separator
Material	ABS	Rubber	Copper	Fiberglass

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Anna Yu Sales Manager Tel: 0086 159 55104975