2.5V 6.6AH 400MA RAID CONTROLLER BATTERY BACKUP MANUFACTURER : DELL PART NUMBER : C291H PRODUCT:BATTERY BACKUP UNIT BATTERY DETAILS:2.5V 6.6AH 400MA 24.4WH COMPATIBILITY: POWERVAULT MD3000/MD3000I CONDITION : BRAND NEW. AVAILABILITY : IN STOCK. WARRANTY : 30 DAYS.