One of the advantages of the Lifeline AGM is the fairly high charge rate. I once had a discussion with a Concord/Lifeline battery engineer concerning the daily boost cycle to 14. what ever volts the Progressive Dynamics converter and Morningstar solar controller go through and he indicated this make sure the battery reaches full 100% state of charge. You have an expensive very good quality battery that has very specific needs to live a long and happy life. I will also recommend a Victron or Trimetric battery monitor the only real way to accurately know what is happening.