How long is a consumer UPS good for?

[True]

was going over my hardware and realized I hav't changed out my UPS in a LONG time..   The app for it says everything fine and I have had 10 sec power outage recently so i know its still working.  But i swear i normally only got 3-4 years out of my previous ones and i am pretty sure this ones at 10+ years old.     Note  that where i used to live i lost power due to some dumb ass hitting a power pole at least 7-10+ times a year.  Not an issue where i live now but i am pretty sure i got this UPS maybe a year or 2 after I moved here.

[Heliian]

Most power supplies are life limited by the battery.  Once the capacity drops it won't be good to maintain power on its own.

 

The batteries can be replaced but it's a good idea to test the system capacity as per the manufacturers instructions or DIY a load test.

 

If properly maintained, they will last. 

[True]

ya i did the test again last night came back clean..  

[Donut417]

5 hours ago, True said:

was going over my hardware and realized I hav't changed out my UPS in a LONG time..   The app for it says everything fine and I have had 10 sec power outage recently so i know its still working.  But i swear i normally only got 3-4 years out of my previous ones and i am pretty sure this ones at 10+ years old.     Note  that where i used to live i lost power due to some dumb ass hitting a power pole at least 7-10+ times a year.  Not an issue where i live now but i am pretty sure i got this UPS maybe a year or 2 after I moved here.

For me, if it works, it works. Have you had to replace the batteries doing that time? 

[X-System]

My APC Smart-UPS Pro says to replace the battery every 3 years.

[LogicalDrm]

-> Moved to Power Supplies

[artuc]

On 3/2/2021 at 2:00 AM, True said:

ya i did the test again last night came back clean..  

 

If it is a 10 year old SLA battery it will be stuffed. Typically they have a useable life of 3-5 years. Some will go longer but it's a case of pre-emptive replacement for battery backup applications. Don't want to find out it's stuffed when you need it most.

 

A lot of that age are either vented/bulging or dried out when I find them.

 

Testing, charging and protection circuits can vary widely in how effective they are. Some will actually periodically load test the battery and have sophisticated charging circuits.  Others may basically just check for voltage and more or less trickle charge it. Have seen shorted or batteries with a dropped cell overheat charging circuits and other issues...

 

 

A lot can depend on how hard a life the battery has had, constant deep discharges aren't great for long life, neither is high temperatures and also the charging method and float/trickle charging used.