An excellent article here: https://www.servethehome.com/raid-controller-batteries-time-bombs-you-need-to-replace/
Are RAID controller lithium-ion batteries ticking time bombs within your server? Over this past weekend, we saw an IBM ServeRAID battery pack that looked ominous. Everyone knows that RAID controller batteries need to be replaced at regular intervals. That is one of the key drivers towards supercapacitors on RAID cards. Before this weekend, our assumption that it was a matter of keeping data safe in the event of a power failure. After this weekend, we now think it may be a safety issue.
My question is, which modern RAID controllers have done away with batteries and now use strictly supercapacitors (and maintenance free)?
Google points me to this @ https://www.ibm.com/support/knowledgecenter/POWER9/p9ed5/ared5pcie3comp.htm but I am after a non-OEM'd units if possible to avoid me having to buy vendor locked HDD.