Avago Technologies Cache Protection for RAID Controller Cards - Manual (Page 137)

Avago Technologies
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Cache Backup Products for MegaRAID SAS+SATA RAID Controllers User Guide
May 2015 Battery Glossary
Full charge capacity
Amount of charge that can be placed in the battery. This value represents the last measured full discharge of the battery. This value
is updated on each learn cycle when the battery undergoes a qualified discharge from nearly full to a low battery level.
Gas gauge status
Hexadecimal value that represents the status flag bits in the gas gauge status register.
Learn cycle
Battery calibration operation performed by the controller periodically to determine the condition of the battery. You can start
battery learn cycles manually or automatically.
Learn delay interval
Length of time between automatic learn cycles. You can delay the start of the learn cycles for up to 168 hours (seven days).
Learn mode
Mode for the battery auto learn cycle. Possible values are Auto, Disabled, and Warning.
Learn state
Indicates that a learn cycle is in progress.
Low-power storage mode
Storage mode that causes the battery pack to use less power, which save battery power consumption.
Manufacturing date
Date on which the battery pack assembly was manufactured.
Manufacturing name
Device code that indicates the manufacturer of the components used to make the battery assembly.
Max error
Expected margin of error (percentage) in the state of charge calculation.
For example, when Max Error returns 10 percent and Relative State of Charge returns 50 percent, the Relative State of charge is
more likely between 50 percent and 60 percent. The gas gauge sets Max Error to 100 percent on a full reset. The gas gauge sets Max
Error to 2 percent on completion of a learn cycle, unless the gas gauge limits the learn cycle to the +512/–256-mAh maximum
adjustment values. If the learn cycle is limited, the gas gauge sets Max Error to 8 percent unless Max Error was already below 8
percent. In this case Max Error does not change. The gas gauge increments Max Error by 1 percent after four increments of Cycle
Count without a learn cycle.
Maximum learn delay from current start time
Maximum length of time between automatic learn cycles. You can delay the start of a learn cycle for a maximum of 168 hours
(7 days).
Next learn time
Time at which the next learn cycle starts.
Predicted battery capacity status (hold 24hr charge)
Indicates whether the battery capacity is capable of supporting a 24-hour time.
Relative state of charge
Predicted remaining battery capacity expressed as a percentage of Full Charge Capacity.
Remaining capacity
Amount of remaining charge capacity of the battery as stated in milliamp hours. This value represents the available capacity or
energy in the battery at any given time. The gas gauge adjusts this value for charge, self-discharge, and leakage
compensation factors.
Run time to empty
Predicted remaining battery life at the present rate of discharge in minutes.
Temperature
Temperature of the battery pack, measured in Celsius.