The voltages you included in your post did not look correct so I downloaded the TrueCharge2 Owner's Manual. My copy shows the following on page 2.5:
Flooded Lead Acid (FLA)
Float: 13.5VDC Equalization: 16.0VDC
Absorption: 14.3VDC Float: 13.4VDC Equalization: Not Applicable
Look to the Optima website for their specs to be sure, but that 0.1VDC difference should not matter. However, your charger has the capability to utilize temperature compensation to reduce the charging
voltage as the temperature at the bank increases. This is a worthwhile accessory, especially when AGM batteries are being charged. Temperature compensation also works during cold weather
voltage, thus ensuring a complete charge.
Equalization is the deliberate and controlled raising of the the charging voltage with a relatively low charging current
to break up sulfate deposits that form on the plates of a FLA battery
. Sulfation is caused by any number of reasons included, but not limited to:
1. Insufficient recharge.
2. Long term storage
in float mode.
Most AGM manufacturers do not "allow" equalization as high voltage is one of the quickest ways to kill an AGM battery. Again, check the Optima website for authoritative advice.
Hope this helps.