Gel250-12 Flat Plate Gel VRLA 12VDC Battery

Prod Model:	GEL250-12
Product Name:	Gel250ah-12 Flat Plate Gel VRLA 12VDC Battery
Type:	Lead-Acid Batteries
Nominal Voltage:	12V
Discharge Rate:	Low Discharge Rate
Shape:	Square Battery
Rechargeable:	Chargeable
Electrolyte:	Gel

Product Description

GEL250AH-12 FLAT PLATE GEL VRLA 12VDC BATTERY 

The battery is constructed by plates,separators,safety valves and container.
Since the electrolyte is held by a glassmat separator and plates,the battery can use in any direction and position without leakage.

Performance Characteristics
Nominal Voltage .......................... 12V
Number of cell .................…........…... 6
Design Life ..................…..…........ 10 years
Nominal Capacity 77°F(25°C)
20 hour rate(12.5A,10.5V) .................... 262Ah
10 hour rate(25A,10.5V) .............….…...… …250Ah
5 hour rate (42.5A,10.5V) .........….....…...........213Ah
1 hour rate(150A,9.6V) ....................…........150Ah
Internal Resistance
Fully Charged battery 77°F(25°C) .......…...........4mΩ
Self-Discharge
3% of capacity declined per month at 20°C(average)
Operation Temperature Range
Discharge .............................. -20~60°C
Charge .....................….......... -10~60°C
Storage .............................. -20~60°C
Max.Discharge Current 77°F(25°C) ...…...…....... 2700A(5s)
Short Circuit Current .....................….. 3375A

Dimensions and Weight
Length ( mm / inch )............…....…520 / 20.47
Width ( mm / inch ) ............…..…...….269 /10.59
Height ( mm / inch ) .........…......….…..220 / 8.66
Total Height ( mm / inch ).........…...….…..225 /8.86
Approx.Weight( Kg / lbs )...….........…. …..73 / 160.94

Battery Constructionn

COMPONENT	Positive plate	Negative plate	Container	Cover	Safety valve	Terminal	Separator	Electrolyte
RAW MATERIAL	Lead dioxide	Lead	ABS	ABS	Rubber	Copper	Fiberglass	Sulfuric acid

 
Charging Methods

Application	Charging method	Charging Voltage  at 25°C	Temperature compensation coefficient of charging voltage	Max.charging current	Charging time  25°C(h)		Temp (°C)
					100% discharge	50% discharge
For standby power source	Constant voltage & Constant Current  Charging  (with current restriction)	13.5~13.8V	-20 mV/°C	No limit on Initial Charging Current	24	20	0~40 (32~104°F)
For cycle service		14.1~14.4V	-30 mV/°C	62.5A	16	10

*Temperature compensation of charging voltage is not needed.when using the batteries within 15°C to 35°C range.

Discharge Constant Current (Amperes at 77°F25°C)

F.V/Time	5min	10min	15min	30min	45min	1h	2h	3h	5h	8h	10h	20h
1.60V	788	630	450	260	185	135	78.8	56.8	38.7	25.3	21.2	11.5
1.65V	765	608	428	253	181	133	78.2	56.7	38.4	25.3	21.2	11.5
1.70V	720	563	405	248	180	131	77.7	56.3	38.3	25.2	20.8	11.3
1.75V	630	473	383	234	179	128	76.5	55.7	38.3	24.9	20.8	11.3
1.80V	563	405	360	203	176	124	74.3	54.0	37.8	24.9	20.4	11.0

Discharge Constant Power (Watts/cell at 77°F25°C)

F.V/Time	5min	10min	15min	30min	45min	1h	2h	3h	5h	8h	10h	20h
1.60V	1434	1149	829	501	351	282	152	110	74.7	49.4	41.1	23.0
1.65V	1374	1103	783	485	347	276	150	109	74.3	49.1	41.0	23.0
1.70V	1310	1036	746	462	342	276	149	109	73.8	49.1	41.0	23.0
1.75V	1148	876	705	433	338	271	147	107	73.8	48.5	40.5	21.9
1.80V	1025	788	665	377	333	269	143	104	73.2	48.5	39.9	21.5