Name: Lead acid battery 4v4.5ah
Availability: InStock

VRLA sealed description:

Model : 4v4.5 ah

Demension: 47(L)*47(W)*101(H)*106(TH)mm;

Weight :0.46kg,

Normal voltage :4v

Rated Capacity : 4.5ah

Package : 20pcs/box

Applications:

LED lighting ,
Medical equipments,

Fire and security systems,

Electric toys
Power tools,
Portable Light

Certificate:ISO9001:2008, ROHS,CE, UL...

Characteristics

Nominal Voltage			4V
Nominal Capacity (20 hour rate)			4.5Ah
Capacity 25°C(77°F)		20 hour rate (0.225A)	4.5Ah
		10 hour rate (0.428A)	4.28Ah
		5 hour rate (0.72A)	3.6Ah
		1 hour rate (2.93A)	2.93Ah
Internal Resistance		Full Charged Battery 25°C(77°F)	≤40mΩ
Cyclic Life		50%(C₂₀) Depth of discharge	600Times
Float Life		25°C(77°F) Float charge at 6.9V	About 3 Years
Capacity affected by Temperature (20 hour )		40°C (104°F)	102%
		25°C (77°F)	100%
		0°C (32°F)	85%
		-15°C (5°F)	65%
Self-Discharge 25°C(77°F)		Capacity after 3 month storage	90%
		Capacity after 6 month storage	80%
		Capacity after 12 month storage	62%
Charge (Constant Voltage) 25°C(77°F)	Cycle	Initial Charging Current Less than1.35A Voltage 7.30-7.50V
Charge (Constant Voltage) 25°C(77°F)	Float	Voltage 6.75-6.90V

Battery Construction

Component	Positive plate	Negative plate	Container	Safety valve	Terminal	Separator	Electrolyte
Raw Material	Lead dioxide	Lead	ABS	Rubber	Copper	Fiberglass	Sulfuric acid