Hi, i have a AEG UPS of 220KVA rating with TWO battery banks (2x 32 batteries of 12v, 100Ah) connected in parallel. Due to weakening of batteries in one battery bank, i removed one battery bank.
Then i connected only ONE NEW battery bank (32 batteries, 12 Volts, 115Ah) with UPS with changing any settings of charger, since it is a smart UPS.
However, 15 days of operation, one battery connected with Negative terminal of charger got ruptured.
What can be the causes?
1- Can it be over charging. As initially charger was charging TWO battery banks. Now same charger charged only ONE battery bank of 115 Ah.
2- Should i have changed Current OR Voltage values from charger.
In my opinion, it did not require change as voltage values will remain same for 12 Volts batteries & they will absorb only the amount of current till they are saturated.
3- Since batteries were new, so might be Voltage value had to be increased for first charge. Which did not happen. Can battery damage due to sulphation.
4- Why the battery connected with Negative terminal ruptured… Is it due to excess electrons during trickle charging?
I will request kind reply please for possible reason of battery rupturing.