Hi I have a 2018 4runner with an OEM battery, I believe the battery part number is: Panasonic 80D26L-MF.

Can I get to the cells by turning the the star shaped things across the top of the battery? I can't tell if they have threads and don't want to break one to find out they don't. I'd like to use my hydrometer tester and see if any cells need water. The battery is working fine for starting, but it is not holding a charge like it used to.

Any advice would be appreciated.

Thanks