Circuit me program ic ke pass R19 resistance ko open kar de UPS me PSM mode rehata hai ye R19 resistance ko open karne ke bad program ic sense nahi karegi ups low battery hone tak continue chalega
Bhai hum ne recently me ek UPS liya hu aur 2 ya3 day bahut aacha backup diya but 5 aur 6 din baad backup nahi de raha hai 3 minutes de raha hai tab hum ne New battery install kiya phir same problem 2 aur 3 din thik chala phir pahle jaisa ho gaya hai ab kay karu bhai please my answer bro