Microprocessor Rectifiers: Automatic Current Selection in Yato 8301 (8A) for 60Ah Battery?

You read very old books.
Modern batteries are no longer subject to these rules, right after start-up the clamp meters show a charge of 50A and nothing bad happens because of it.
It is thanks to the voltage control on the battery, if the charger is limited to 14.8V, the battery will not gase at all and you can charge it with as much current as your charger can give.
So much for practice, observation and measurements, and that it does not coincide with "book knowledge" is another fairy tale.

The battery is a simple, even trivial construction.
The high charging current immediately after the start-up results from its momentary discharge and sometimes it drops from 50A to 5A in just a few minutes, because by charging it with constant voltage, the current will inevitably decrease as the voltage on the battery increases.
So this 8A is supposed to be the current that the battery will be charged for several hours?
it will drop to 1A after an hour, if the charger does not raise the voltage, and if it does, the battery will start gassing after exceeding the above-mentioned 14.8V.
Charging the battery with a good charger will take a minimum of 10 hours and it is true that the old chargers did it much faster, but the old batteries had cells closed with plugs and there were vents in the plugs and in the event of evaporation, you could add distilled water (after the fall of the Polish People's Republic it was only demineralized because distilled turned out to be too small). road in production). In maintenance-free times, sometimes it is not even possible to replenish the electrolyte losses after charging with too high voltage, so it is probably more important that the rectifier has an efficient voltage limitation and the charging current will result from the temperature and condition of the battery and only at the beginning of charging it will be necessary to limit the current to 6A ( for example for your battery) because then the current will drop to a value below 1A by itself.
To everyone who asks what rectifier to buy, I recommend stabilized power supplies with adjustable voltage and adjustable current limit, then it is enough to set a voltage of 14.8V and, if necessary, limit the current with the second knob, because such power supplies usually have maximum output currents of 3-5A.

Because it is "matching the product to the market"
From the table it should be clear to a potential customer that with this product you will charge EVERY battery, not only of any capacity found in the trade, but also products such as GEL and AGM batteries. See that, in fact, the choice of "charging current" is really a choice of only "the diode that is to shine". The rectifier has a choice of several currents and it was necessary to create a whole "theory" how to charge the battery by this miracle from 4Ah GEL to 200Ah WET. Usually, from the set 12A, the device will heat up after 10 minutes and if it does not turn off completely, it will limit the charging current to 1-2A. This is our reality
Do it yourself if you want to have something decent, but get ready to spend PLN 400-500 because for PLN 70 you have what I am writing about.

Buy one that is suitable for continuous operation,
it cannot be such an invention that after 10 minutes of operation you have to turn it off for an hour
that is, a patent duplicated from an electric shaver, for the price of miniaturization you have 5 minutes to shave because the second attempt takes only an hour.
Rather, aim at one from Lidl on a switching power supply, there is nothing to save on too much, not what in a transformer charger, where 10A-ampere rectifiers are built on a 10W transformer and, surprisingly, they find such buyers.