I've been using the CTek MXS 5.0 charger to maintain the battery on my Porsche 996/911 as like many such cars it gets little use over the winter and with the Coronavirus situation it's not getting used this Spring either. Up to now I've used the standard crocodile clips to connect the charger to the battery but decided that the supplied wires to setup a permanent connection to the battery terminals would be a neater solution long term. The Boxster is exactly the same layout so the same process will work.
You'll need a 10mm spanner to do this job.
