I recently got an old APC BK300 UPS (Input:120VAC & Output:120VAC 300W) along with many other vintage electronics stuffs. So I tried opening the the UPS completely.I noticed that the battery a 12V 7Ah BB battery SLA was completely dead. Well I kinda added som edistilled water and revived it and it seems to be working fine now after a day of charging with a high power automotive charger and put it back on the UPS after resealing the SLA. I removed the UPS buzzer since it was kinda annoying. Connected the SLA and powered up the UPS and connected a 130V 100W bulb and it was glowing bright.I usually do some power electronics stuffs from mains and having been looking to replace the mains as source with an inverter or UPS(always feared getting electrocuted). So does a UPS has enough juice to kill me like power from mains 110V outlet? Also there are two transformers inside the UPS a really big one and a small one on the circuit board.Which one is the inverter transformer? I've posted some pics below.
Thanks in advance.
Thanks in advance.
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