12V4.5AH Maintenance free sealed lead acid battery

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                            Description of 12v4.5ah battery

Application

Maintenance free storage battery 12v4.5ah is used for building interphone, fire alarm system ,automatic door and so on.

 

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battery characteristic

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Nominal voltage

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12V

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Nominal capacity(20h rate)

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4.5Ah

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Size

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Total height

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101mm

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length

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90mm

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width

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70mm

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height

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101mm

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Weight

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1.39kg

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Rated capacity                       25°C(77°F)

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20 hour rate(0.20A)

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4.5Ah

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10 hour rate(0.4A)

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3.4Ah

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5 hour rate(0.70A)

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3.2Ah

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1 hour rate(2.5A)

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2.9Ah

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Internal resistance

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in full charge status 25°C(77°F)

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35mΩ

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Capacity at different temperature(10h)

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40°C(104°F)

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102%

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25°C(77°F)

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100%

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0°C(32°F)

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85%

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-15°C(5°F)

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65%

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Self discharge     25°C(77°F)

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capacity after 3 months

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91%

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capacity after 6 months

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82%

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capacity after 12 months

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64%

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Mode of charge (constant voltage)       25°C(77°F)

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cycle-use

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initial charging current less than1.80A ,                    voltage14.10-14.40V

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float-use

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Initial charging current less than 0.68A voltage13.5-13.80V

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GUARDIAN TECHNOLOGY DEVELOPMENT CO.,LIMITED located in Shenzhen city, Guangdong province, China. Our main products include Valve-regulated lead-acid battery, GEL battery,Polymer lithium ion battery, Lithium ion battery, Battery charger and so on.
The application of products cover fire alarm system, UPS emergency lighting system,solar energy, Children's toy car, LED lights, sprayer, Micro water pump.
Our main oversea market is in Europe, Southeast Asia, Africa and South America more than 30 countries and regions.
Our prducts have CE,UL,ROHS certificate and we are in strict accordance in ISO9001:2000 international standard quality assurance system. With the first-class service and high quality products we are willing to establish a good business relationship with you.

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