I have Dell R610. I upgrade Perc 6/i firmware than front panel shows me an error which is "W1228 RAID Controller battery capacity < 24hr"

I downloaded from here

"https://dl.dell.com/FOLDER01002138M/1/SAS-RAID_Firmware_F96NR_WN32_6.3.3-0002_X00.EXE"

I know it is an old server but I think it is not about Raid battery. I want to try downgrade Perc 6/i but I didn't find and information. Can you help me to downgrade?

I am using Windows 12 RE.