I have a Skylla IP44 12/60(3) running two banks of AGM Super Cycle batteries. The battery banks are not holding a charge (voltage drops prematurely under load) and I've been advised by my Victron distributor to try equalizing the banks. The equalization voltage is set to 15.9V, but when I put the charger in manual equalization mode it won't put out any more than 14.6V. Charger state is showing as "Equalize" on my CCGX.
What am I doing wrong?