Charging 60Ah Bosch Battery: Time Required for 11V to 12V & Safe Start for 60km Drive

Hello
I have a 60ah year old bosch battery. Today he did not want to start (loading ok - maybe it's because very short sections are going + these heat). I measured the voltage with the meter = something over 11V came out. How much do I have to charge the battery now to start the car and go somewhere? I need to jump somewhere with the car, and on the Internet I read that you need to recharge the battery to the end because charging with an alternator is not good for such a discharged battery.

Currently, it charges 6A for an hour and has something over 12V. Can I start now? - I have a 60km route and possibly connect the rectifier for a few hours after returning? Is it better to wait until the evening when it is fully charged?

You can recharge and an hour as soon as it fires. You should also check the charging on the car, it should be within 14 V, otherwise even a 100 km trip will not help.
This measurement; 6 A for an hour and a voltage of more than 12V on the charger plugged in? If so, the battery was junk or discharged to 10V.

The meter showed me that it was discharged to 11V. Hmm - junk - what I can somehow advertise - it definitely has a guarantee.

Buddy, and when you fired yesterday, did you recently wonder if the alternator top-up is good or bad? Rather, check the idling charge voltage of the engine. It should be around 14.4V.

Yes, yes - I know about this charging voltage - I will check it after firing now. Recently, I checked the battery assembly, i.e. a year ago - it was ~ 14.5

And yesterday I did not think about it, because he fired and from the assembly he always fired without a problem! - there was no problem, I did not think about it OMG!

Don't think too much or you will become a hunter.
Measure alternator charging. then you will learn a lot.

Also, measure the current leakage at a standstill by the way.

Well, there is probably a problem. The battery has so far been charged to 12.7V. I fired it now and charged at idle without load at 13.83, turned on the lights - then 13.83V - turned on the blower to the max - 13.28V

Next measurement - radio to max + lights = 13.78V
At the end, I turned off everything = 13.75V

Should it be 14.5V? - but is it not that these 14.5V are on a fully charged battery?

It will be when the battery is recharged!

The battery should be charged 10% of the 20-hour capacity, i.e. you have 60Ah, then 6A is appropriate, of course, you can set a higher A for faster start-up, but it will definitely not extend the life of the battery. long

Added after 10 [minutes]:

Finish what I started. Charge for desulphurization with a current of 0.5 Ampere for up to 36 hours if there is such a possibility, then it will definitely have a positive effect on the Battery, but hardly anyone uses it, especially as driving near the chimney causes the battery not to be recharged, which is manifested by slow sulphation (sulphate appears on the plates) lead). Maybe it will be useful to someone because the prices of a new battery are not low and it is not difficult to recharge it sometimes.