PC Peripherals APC service center (s) in North India
- Thread starter LaatSahab
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Dinesh6252
Discoverer
You can replace the batteries yourself with aftermarket (exide, luminous) ones yourself for cheap. What repair does the ups needs? Most probably APC would not repair it.
Abhishek Shukla
Forerunner
Call the APC service center toll free number, but to be frank they are going to charge you an exorbitant rate for out of warranty repairs/battery replacement.
rsaeon
Innovator
If the above information doesn't help you, post a sale thread here instead of sending it off for scrap. You're sure to get at least 1000 for it. For something this old, at very least all of the capacitors need to be changed.
These older models are not as efficient as newer ones but they are very good UPS's, they can switch from line to battery power within a quart of a hertz. The serial port in the back also lets you program in a new charging profile, this allows you to use longer lasting LiFePO4 batteries instead of lead acid.
These older models are not as efficient as newer ones but they are very good UPS's, they can switch from line to battery power within a quart of a hertz. The serial port in the back also lets you program in a new charging profile, this allows you to use longer lasting LiFePO4 batteries instead of lead acid.
Yup, it has all that but in my absence, my mother gave it to a local computer wallah who molested it in God knows how many ways. According to him, he changed its "Card" and Batteries but even after charging it for straight 24 hours, it discharged in just namesake 2 minutes when put under a load of a single 40-inch LED TV. As it weighs almost 20Kgs, cannot ship it even if I decide to sell it here. I just need a proper diagnosis of the UPS and then a prognosis and cost estimate for it.
Abhishek Shukla
Forerunner
rsaeon
Innovator
If you're putting in a new battery, you'll need to reset the battery constant. This is a two digit hex code unique for every apc model that you program in the UPS through the serial port, telling it that it has a new/fresh battery. This will give you the best possible runtime and accurate time calculations in software.
You can set it to the max value if you're using high capacity lithium batteries with a BMS, the UPS will practically run forever this way, and the BMS will cut off power instead.
With lithium batteries, you'll need to change the float voltage to what's required by the chemistry of your battery, it's basically applying a negative or postive offset. You'll need a voltmeter/multimeter with a 0.1v resolution attached to the UPS while you do this.
There's a truncated guide explaining all this and more here: https://diysolarforum.com/threads/upgrading-apc-ups-battery.1503/
For a more general guide that may suit other brands of inverters and ups's, see if your model has a fuse in the charging circuit. For a lithium conversion, you can simply remove that fuse and place a separate lithium-specific charging module inside the UPS that will charge the battery, while the inverter portion of the ups/inverter can be directly connected to the battery.
If anyone has read this far then you probably know that lifepo4 and llithium ion have different float/nominal voltages and need their own specific charging modules and they are not interchangeable.
Abhishek Shukla
Forerunner
I have an SUA 2200I which works fine as long as batteries are replaced every ~1.5 years. This might be something to look into when the UPS is about to die, though I probably won't be able to do this myself.
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