Intel RMS25PB080 Hardware User's Guide - Page 29

5 Battery Backup Unit Specifications Table 2. BBU Specifications Battery Technology Battery Operating Environment Battery Storage Temperature Fast Charge Rate Battery Voltage Mechanical Battery Capacity Battery Charge Time Battery Shelf Life Battery Operational Life Memory Smart Battery Monitoring Auxiliary Power Lithium-Ion (Li-Ion) 10-55°C dry bulb temperature (The maximum dry bulb temperature shall be derated by 3.3°C per 1000 m above 500 m) 5% to 90% relative humidity noncondensing Storage Temperature Range (dry bulb) 10°C to 55°C (maximum period of 3) months (The maximum dry bulb temperature shall be de-rated by 3.3°C per 1000 m above 500 m) 500 mAH Nominal Battery Voltage: 3.7 V 76.1 mm x 53.5 mm (battery extends over PCB) 1500 mAH Typical: Approximate 4 hours 1 year Intel® provides a one year warranty on the Intel® RAID Smart Battery AXXRSBBU9 DDR3 SDRAM 667 MHz, maximum 72-bit bus width Temperature is monitored using the I2C interface; Supports v1.1 "Smart Battery System Manager" Ability to detect the presence of an external auxiliary power source. Circuitry automatically chooses auxillary power and defers discharge until auxillary power is removed or exhausted. Auxillary power increases the DRT ratings. Battery Life and Data Retention Time The Intel utilities display a counter showing the number of times a BBU has been recharged. When you replace a BBU, you should run the utility program and reset this counter to zero for the new BBU. Intel® recommends that you replace the battery pack on the BBU once a year or after 500 recharging cycles, whichever comes first. The battery pack has one year warranty. Intel® RAID Smart Battery AXXRSBBU9 User's Guide 17