SB900 Life Cycles

FAQ #4030 Updated February 09, 2012

Question:

What is Shure's estimate on how many times a SB900 battery pack can be recharged?

Answer:

An accurate estimate is elusive as it depends upon multiple variables, such as storage temperature, storage capacity, actual usage, etc.  Shure estimates that a single SB900 may have a maximum of up to 500 pro-rated cycles.  

One full cycle is the complete discharge of the SB900, followed by complete charge to "full."  As an example: the SB900 has a "expected battery life cycle" of about 12 hours.  If the SB900 is used for 4 hours, then charged charged to "full" after each 4 hour use, it would take 3 usages to equal a 1 full cycle.  "4 hours" times "3 uses" = 12.

A Shure customer reports using the SB900 for 170 hours of operation and the battery indicates a health rating of 97%.

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