The batteries are not charged symmetrically (different charge levels).
While the UPS was running it happened by chance that one of the batteries was charged and the other was not
each battery is 12 V, 100 Ah, 30 kg)))
the UPS works on a much smaller rated load,
I want to understand - is there not enough power from the batteries? or is the UPS faulty,
By the way the UPS is powered from 24 volts - 2 batteries connected in series
I don't know about two batteries - I know that in a single battery some cells can have different charge levels - some undercharged, others overcharged - as a result there is heavy wear on the whole battery and its low power
and imagine discharged it, charged it - nothing helped - I connect office equipment directly - it works for a couple of hours, but when connected through the system after artificially disconnecting the input wire - it can't handle the office equipment - it turned out the electrician had run one wire out to the plug so we wouldn't mix up phase and neutral, and the second contact is theoretically connected through the input circuit, and it only works if both the incoming and outgoing circuits are connected
Comments