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BATTERY SELECTION GUIDE

Steps for selecting batteries are described below.

Study of required specifications (draft) Study the required specifications (draft)

by

checking the requirements for the battery with the battery selection criteria. Technical requirements for selecting the battery are presented below.

Technical requirements for battery selection

Electrical requirement

Voltage range Vmax. Continuous load

Vmin.

Intermittent load (Pulse load)

mA(max.) mA(av.) mA(min.)

mA(max.) mA(av.) mA(min.)

ON/OFF condition ON time

Charge condition

Cycle charge

Trickle/Float charge

Charging time

Charging temperature Atmosphere

˚C max. ˚C min.

˚C max.

˚C min.

Length (mm)

max.

% max.

% min.

Width (mm)

max.

Storage temperature

Mass (g)

av.

Temperature and humidity

Ambient temperature and humidity

Dimensions, mass and shape

Height (mm)

max.

Terminal shape

and humidity

˚C max. % max.

˚C min. % min.

Life Cycle life

Trickle life

cycles

Others

Atmosphere pressure Mechanical condition Safety

OFF time

years Storage period

Inter-changeability Marketability Price

Battery selection

  • Battery selection

First, select several candidate batteries by referring to the technical brochures and data sheets of the batteries presently available. Then from the candidates select a battery which can meet as many of the ideal requirements as possible. In fact, however, battery selection can be seldom made so smoothly. Practically, possible removal or easing of the requirements should be considered first; then depending on the result, a proper battery should be selected from those presently available. This way of proceeding enables economic selection of the battery. Any questions at this stage should be asked to battery engineers in depth. Sometimes, new or improved batteries which are not carried in the brochures have become available, and an appropriate battery may be found among them. Usually, required specifications are finalized at this stage.

  • Request for improving or developing batteries

If no battery which will satisfy special requirements can be found by the above-described approach, requests for improving or developing new batteries should be made to our technical department, and these requests should be coordinated as quickly as possible to allow enough time for studying: the study takes usually 6 to 12 months or even longer depending on the request. In this section, guidelines for selecting appropriate batteries for specific equipment were mentioned. If further information regarding the battery selection is required, please contact us.

Sealed Lead-Acid Handbook, Page 31

January 2000

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