The importance of getting back to 100% SOC, as often as possible, can not be over emphasized. Here Lifeline Battery is referring to the "walk down" effect of PSOC use (partial state of charge cycling). By not recharging to 100%, as often as possible, your Ah capacity will gradually "walk down" as sulfation becomes permanent and ruins them.


For more information on the effects of PSOC cycling AGM batteries see the May 2015 and August 2015 issues of Practical Sailor Magazine.


SUMMARY: In this test, on this AGM battery, the difference between a .4C and a .2C charge rate, from 50% SOC to 100% SOC, netted a 12 minute total charge time difference.