Indeed, the proper settings of battery charge rate in amperes, correct battery type selector switch position and battery bank size are all important to battery life. A battery charge rate for lead acid deep cycle batteries is typically 1/10th to 1/8th of the bank size or capacity. For example charge one 225 AH bank of 4 batteries between 23 and 28 amps. Two banks of 225 AH batteries add up to a 450 AH bank that can be charged between 45 and 56 amps. Three banks of 225 AH batteries will have a bank size of 675 AH that can be charged at 67 to 84 amps.
That said, if your electricity is almost always on, you can charge at lower than those rates and help to prolong battery life. On the opposite end, if you have a poor supply of electricity which is only on for short periods each day, you will have to push up the charge rate or fear losing power when the batteries run out.
I know of one person completely off the grid that charges a large bank of batteries from a generator at the maximum rate his inverter/charges can supply every day in just 2 hours and then they drain down to 30% of capacity. Going from 30% charge to full in 2 hours should be a battery killer, but he gets 2 to 3 years from his batteries doing this very harsh method.
I just purchased Trojan Red T105 225 AH batteries from LH Internacional. They were 5,000 pesos RD each and LH will give you 800 pesos each for the old batteries you trade in. I go to LH because they are a major importer of batteries and supply many other shops. They give you batteries that are all from the same batch from the factory and they have not been sitting on the shelf of months. Both of which are important when buying new batteries.
Trojan Red batteries are the best normally available in the DR and are probably the most economical in the long run despite being the most expensive. Note that Trojan black batteries are only 208 AH so beware of that. US Battery brand is also a good choice. US Battery also has a 225 AH and and 208 AH version for sale here.
We have not established that the OP has an inverter with all of the settings I described in this thread.