Trojan is Trojan, but my interpretation of this wording is that, beyond the initial first use set-up, balancing should occur at least once weekly (excluding a long term storage scenario)...This is to ensure that the cells receive a periodic maintenance re-balancing...
Proper cell balancing requires the proper charge voltage* which generally ranges from about 14.2v to as high as 14.6v (depending on manufacture’s spec’s), though with most Li brands, BMS voltage cut-off occurs at 14.6v... For certain chargers (like PowerMax @ 14.6v), voltage loss via battery wiring will most likely negate this sole issue.
*Conventional (non-Li specific) PD 92xx bulk operating voltage
3 tons