Problem with Dell PS4100

Hi Everyone,

I'm currently working at a dell partner firm and we have this one client that purchased a equallogic ps4100 from us 10 years ago.

The storage was working great but it showed that one of the controllers had a problem with the battery. So we ordered a new C2F battery module from dell and replaced the old one with the new one (the old one had visible damage on it). After turning on the storage the battery error disappeared and the err light on the controller was not red but the array indicator on the front side is now amber which means critical error.

Does anyone have any idea what could have caused this and if anyone had the same problem please share how did u fixed it?

Thank you in advance.