WE HAVE A UPS SYSTEM OF 130 KVA IN 1+1 PARALLEL OPERATION. EACH UNIT HAVE ITS OWN BATTERY BANK OF 192 CELLS OF 2 VOLTS 825 AH (VRLA MAINTENANCE FREE BATTERY) THE INSTALLATION DATE IS OCT.99 AND BATTERY MANUFACTURING DATE IS JUNE 98.
IN THE LAST TWO MONTHS WE FACE THREE NOS. OF BATTERY BANK...