12V Battery 38ah Deep Cycle Free Maintenance AGM Battery

• Type: Lead-Acid Batteries
• Usage: Car, UPS, Electric Power, Lighting, Electric Bicycle
• Nominal Voltage: 12V
• Discharge Rate: Low Discharge Rate
• Shape: Square Battery
• Electrolyte: Acid
• Model NO.: SH38AH-12
• Installation: Packaged
• Rechargeable: Chargeable
• Product Name: Sh38ah-12 AGM VRLA 12VDC Battery
• Size: See in The Web
• Transport Package: Seaworthy Packing
• Specification: 38AH-12VDC
• Trademark: kempower
• Origin: Guangzhou, China
• HS Code: 8507200000
• Production Capacity: 50, 000 PCS/Year

Product Description

SH38AH-12 AGM 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 ..................…........…. 8 years
Nominal Capacity 77°F(25°C)
20 hour rate(1.90A,10.5V) ................... 38Ah
10 hour rate(3.54A,10.5V) ..........….....…..….35.4Ah
5 hour rate (6.48A,10.5V) ..............….........32.4Ah
1 hour rate(24.7A,9.6V) ..............….....….... 24.7Ah
Internal Resistance
Fully Charged battery 77°F(25°C) .......…......….10mΩ
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) ...…...…....... 380A(5s)
Short Circuit Current .....................….. 1140A
Charge Methods:Constant Voltage Charge 77°F(25°C)
Cycle use .............................…14.5-15.0V
Maximum charging current ................…..…..11.4A
Temperature compensation .................…. -30mV/°C
Standby use .....................….....…13.4-13.8V
Temperature compensation .........….....…..…-20mV/°C

Dimensions and Weight
Length ( mm / inch )............…......…197/ 7.56
Width ( mm / inch ) ............…...…...….165 / 6.50
Height ( mm / inch ) .........….....…....170 / 6.69
Total Height ( mm / inch ).........…...…..….182 / 7.17
Approx.Weight( Kg / lbs )...…...............…12 / 26.46

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)	13.4-13.8V	-20 mV/°C	11.4A	24	20	0~40 (32~104°F)
For cycle service		14.5-15.0V	-30 mV/°C	11.4A	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	133.0	106.4	76.0	43.7	31.2	24.7	13.3	9.62	6.54	4.30	3.57	1.94
1.65V	129.2	102.6	72.2	42.9	30.8	24.5	13.2	9.58	6.50	4.30	3.57	1.94
1.70V	121.6	95.0	68.4	41.8	30.4	24.3	13.1	9.50	6.46	4.26	3.54	1.90
1.75V	106.4	79.8	64.6	39.5	30.0	23.9	12.9	9.39	6.46	4.22	3.54	1.90
1.80V	95.0	68.4	60.8	34.2	29.6	23.6	12.5	9.12	6.38	4.22	3.46	1.86

 
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	242.1	194.2	140.0	84.7	59.3	47.5	25.5	18.5	12.6	8.32	6.96	3.80
1.65V	232.2	186.2	132.2	81.7	58.5	46.7	25.4	18.4	12.5	8.28	6.92	3.80
1.70V	221.2	175.2	126.0	77.9	57.8	46.7	25.2	18.4	12.5	8.28	6.92	3.76
1.75V	193.8	147.8	119.1	73.3	57.0	46.0	24.8	18.1	12.5	8.17	6.84	3.69
1.80V	172.9	133.0	112.1	63.5	56.2	45.2	24.1	17.6	12.4	8.17	6.73	3.61

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