I am having a problem with the BMS 12/200 and a Balmar MC618 regulator controlling a 150A alternator. The 600 AH lithium battery bank is at 50% discharge. The alternator outputs high current for 15 minutes and then starts cutting back it's output, this is because after 15 minutes (the default setting) the Balmar regulator senses the voltage of the start battery and determines that it is fully charged. The sensing period of the regulator can be extended in increments up to 2 hours, meaning it would demand high output for that period, but I am concerned that the start battery may be damaged by seeing a high voltage for an extended period while it is fully charged. The start battery is a Victron AGM. Any suggestions regarding this problem would be appreciated.