Entering FIDES Batteries
The following table describes the part parameters required for batteries when a FIDES 2009 model is selected for the calculation. The FIDES 2004 model does not support the FIDES category/subcategory combination of Miscellaneous Subassembly/Battery.
Parameter
Type
Description
[Standard FIDES Parameters]
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For more information, see FIDES Standard Part Parameters.
Type
Choice List [Parts Count and Families Count also]
The type of material for the device. Many choices are available.
Merit Factor (wh/kg)
Choice List [Parts Count and Families Count also]
Required only for the following types: Li-ion and NiMH Metal Hydride.
The energy density in watt hours per kilogram.
# of Cells
Integer [Parts Count and Families Count also]
The number of cells that convert stored chemical energy into electrical energy.
# of Charge Cycles per Year
Real [Parts Count and Families Count also]
The number of times that a battery goes through a charge/discharge cycle per year.
MTTP Preventive Maintenance
Real (Hours) [Parts Count and Families Count also]
The mean or average time between two periodic preventive maintenance operations. When the maintenance policy does not include any preventive maintenance, the average failure rate is calculated over the average period between two corrective maintenance operations due to wear-out failure using the parameter values provided below.
Shape Factor Ī²
Real [Parts Count and Families Count also]
The shape factor for the Weibull distribution, which is used to model the wear-out type.
[Derating Parameters]
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For more information, see Derating Parameters.