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Appendix A. RAID battery card assembly
Specications
The following table provides specications of the RAID battery card assembly.
Battery technology
LiON
Battery operating temperature (ambient) 10 to 40°C (50 to 104°F) (ThinkServer 8708ELP SAS RAID
Controller Battery and ThinkServer 8708EM2 SAS RAID
Controller Batter)
10 to 55°C (50 to 131°F) (ThinkServer RAID 700 Adapter Battery)
Humidity (storage and operating) 20%-80% (non-condensing) (ThinkServer 8708ELP SAS
RAID Controller Battery and ThinkServer 8708EM2 SAS RAID
Controller Battery)
5%-90% (non-condensing) (ThinkServer RAID 700 Adapter
Battery)
Battery storage temperature
For the ThinkServer 8708ELP SAS RAID Controller Battery and
ThinkServer 8708EM2 SAS RAID Controller Battery:
• < 30 days: 0 to 50°C (32 to 122°F)
• 30-90 days: 0 to 40°C (32 to 104°F)
• > 90 days: 0 to 30°C (32 to 86°F)
For the ThinkServer RAID 700 Adapter Battery:
• 0-90 days: -10 to 45°C (-50 to 113°F)
Battery voltage conditioning <3.7 V
Fast charge rate 500 mAh
Battery pack 1 cell
Mechanical
3.595 inches x 2.055 inches (ThinkServer 8708ELP SAS RAID
Controller Battery)
2.61 inches x 2.122 inches (ThinkServer 8708EM2 SAS RAID
Controller Battery)
6.6 inches x 2.536 inches (ThinkServer RAID 700 Adapter Battery)
Battery capacity
1350 mAh (ThinkServer 8708ELP SAS RAID Controller Battery)
700 mAh (ThinkServer 8708EM2 SAS RAID Controller Battery)
1590 mAh (ThinkServer RAID 700 Adapter Battery)
Charge circuitry card
Yes
Battery charge time 4 hours
Auxiliary power Yes
Battery life and data retention time
This sections includes information about the battery life and data retention time.
It is recommended that you replace the battery pack on the battery card assembly once a year or after 500
recharging cycles, whichever comes rst.
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