I had a lifeline 125AH gpl 31XT new in my possession for a project for a friend and tested it.
But when a group 31XT can be recharged from 50% DOD to 100% SOC in an hour and forty minutes the whole tally of pluses and minuses comes into play.
50% to 100%......., well 80% to 100% could not be done in 1 hour and 40 minutes, not at 14.46v at 70f.
That was using 0.5% of 125Ah capacity at 14.46v as a determinant when full and 40 amps available current
Great battery, but they ain't gonna fully charge 50% to 100% in under 2 hours. Neither will the TPPL thin plate pure lead AGMs of Northstar or Odyssey, that do have the higher CCA figures and are in the same price league as Lifeline.
http://www.pbase.com/mainecruising/effect_of_charge_rate_on_agm_batteryStill an Awesome deep cycle AGM battery, but they ain't magic.
