QNAP BBU-A02-2900MAH - Backup Battery Unit, Black

The QNAP BBU-A02-2900MAH is a backup battery for the ES NAS series. It provides emergency power during unexpected outages, allowing storage controllers to complete critical write operations. This prevents the data corruption that can occur when a system is interrupted mid-process, ensuring the integrity of file systems and storage arrays.

This component connects directly to the NAS backplane as part of the native power architecture. This direct integration allows the battery to take over the load instantly. The unit is designed to withstand the thermal demands of high-density storage environments without the need for additional cooling. It acts as a hardware fail-safe for IT setups that require constant data availability, enabling storage controllers to flush data to non-volatile disks before shutting down.

• 2900 mAh capacity: provides the power required for storage controller backup tasks.
• Scheduled learning cycles: automates battery calibration to maintain accurate health and capacity reporting.
• Write-through mode support: manages controller behavior to protect data integrity during power loss.
• 218 g weight: adds minimal mass to the storage chassis, facilitating easier rack installation.
• Black finish: matches the standard appearance of professional enterprise networking equipment.
• Redundant power compatibility: increases system resilience in dual-controller QNAP setups.