Dell U8735 PERC 5i 6i RAID Controller Battery

Product Description

The Dell U8735 is a dedicated battery designed to serve as a backup power source for Dell's PERC 5i and 6i RAID controller cards. Its primary function is to supply power to the controller's onboard cache memory in the event of an unexpected loss of AC power to the server. This prevents data corruption and ensures the integrity of the RAID array configuration. When the server loses main power, the U8735 battery takes over, allowing the RAID controller to safely write any pending data from its cache to the disk drives. This process is crucial for preventing data loss and maintaining the consistency of the stored information. The battery is rechargeable and is typically maintained by the server's power supply when the system is running normally. Replacing a depleted or aging RAID controller battery is a vital maintenance task for any server utilizing PERC 5i or 6i controllers. A functional battery ensures that the RAID controller can perform its essential data protection functions, especially during critical write operations. The U8735 is a direct replacement part, ensuring compatibility and reliable performance for these specific Dell RAID controllers.