would be better if you charged it a higher bulk charge amps, but the real question is what voltage does the BT charge at in bulk charge? in float charge? if it holds 13.6V in float charge mode then you're fine it will bring it back to 100% SOC in a few days.
Bulk stage is not a voltage, it is a maximum amperage stage that will take a certain amount of time, to get the battery to absorption voltage, well hopefully absorption.
The higher the amperage potential of charging source, the sooner absorption voltage is achieved.
The charger is basically maxxed out, in bulk. Constant current stage.
Once absorption voltage is achieved then the amperage required to maintain absorption v, tapers. Constant voltage stage
When amperage ,with battery still bei ng held at absorption voltage, tapers to about 1% of the flooded battery capacity rating, at 20 hour rate, rated in amp hours, hopefully a temperature compensating hydrometer dipped into each cell reads 1.270, or higher.
This is unlikely, and less likely the older and more abused the battery is.
If people actually used a hydrometer, they will likely find that specific gravity is well below 1.275 and the battery, especially a group 24 or 27 or 29 or 31 flooded marine battery, being cycled below 80% state of charge, is not fully charged, despite that green light glowing from their well marketed charging source.
Ideal, is truly fully charged.
Charging any undercharged battery toward full, is better than no charging, but initial amperage rate becomes important in deep cycle duty, in terms of maximizing potential battery performance, and longevity .
Trojan, one of the most respected deep cycle flooded battery manufacterers, says apply 10 to 13% of capacity in bulk mode, until 14.82v i absorotion voltage is reached.
So a 100 amp hour group 27 should be fed 10 to 13 amps initially, until 14.82v is reaches at battery terminals, then holding absorption voltage for 1 to 4 hours more will be requires before battery is in 95% charged range.
Premature dropping to float voltage, is the deep cycled lead acid battery killer. A Week+ more on a maintenance charger before.next discharge cycle, hopefully should get the healthy battery full. The less than healthy battery has much lesser chance.
Starting the next discharge before a true fill charge has been attained, is cumulatively damaging rthe battery capacity, and its ability to maimtain respectable voltahe powering lightnor heavy DC loads.
The deeper the discharge, the more important the recharge becomes.
Almost every 'garage' charger wll drop to float prematurely, onna deeply cyxledarine/ trolling battery, and the deeply cycled battery subjected to partial state of charge cycling, loses capacity significantly faster, than if it were truly fully charged, first respecting that 10 to 13% initial charge current in bulk stage, then held at absorption for long enough, and only then maintained at the proper temperature compensated manufacturer recommended float voltage, by a maintenance charger.
This is ideal treatment.
Good enough, is opinion, and there is no shortage of those these days.
Achieving ideal can be expensive in equipment, and/or time.
It Could be very well easier, to just replace more often, and worry about more consequential topics.
But one should know what ideal is, then draw their OWN line in the sand as to how far they wish to take it.
Those wanting ideal, should be watching a voltmeter, AND an ammeter, as their charging source does its thing.
A hydrometer, like the the OTC 4619, is the flooded lead acid battery polygraph, as to state of charge, but ignorance is indeed blissful.
Most deeply cycled flooded, maintenance free, or AGM marine batteries, will be far from fully charged, when the smart charging source, glows that soothing lying green light, in deep cycle duty.
More tham charged enough to start an engine, but far from charged enough, to prevent premature capacity loss.
Could be good enough though.
Decide what is 'good enough', for yourself.
Ideal, is not opinion.