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Posted: 2024-10-10 09:24 AM
Maximum Life of an SYBT5 Lead-Acid battery module
I am tasked with planning a budget for life-cycle replacement of my facilities UPS batteries. I have several UPS that use the SYBT5 battery module. I have only been able to find the minimum life (3yr) the warrantee duration (2yr) but not reference to a maximum or recommended replacement time? In my past experience with APC battery modules there was such a date. Is it now based on the voltage/load test results?
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Posted: 2024-10-11 05:43 AM
The average service life is stated as 2-5 years based on usage, temperature, and environmental conditions.
Generally speaking the battery replacement interval depends upon the level of conformance and standards you follow.
If this is a ISO / cUL certified site than the maintenance and change out interval is well defined for you and the site.
Especially if you conform and publish a uptime of service to your customers / public. ☝️
Regardless of all the above testing and validation of the system and batteries are the most basic requirements and tasks.
There is no other test in the industry that supersedes a (Lights Out / Grid Down) event!
This is either a pass / fail event . . .
The only portion of the lights out test that is placed on a curve is the operational runtime when compared to the published APC Runtime Calculator for a specific load.
Meaning if the APC Runtime Calculator indicates a new cartridge can provide 60 minutes but you see 35-45 minutes.
Depending upon how stringent you follow your conformance you may let that slide vs ordering a hot spare immediately / a few months down.
If the operational runtime was 5-10 minutes vs the 60. The battery cartridge needs to be replaced as it’s near end of life.
The internal resistance and load test are the primary factors that determine a battery pass / fail.
Measuring spot voltage offers very little information.
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Posted: 2024-10-11 05:43 AM
The average service life is stated as 2-5 years based on usage, temperature, and environmental conditions.
Generally speaking the battery replacement interval depends upon the level of conformance and standards you follow.
If this is a ISO / cUL certified site than the maintenance and change out interval is well defined for you and the site.
Especially if you conform and publish a uptime of service to your customers / public. ☝️
Regardless of all the above testing and validation of the system and batteries are the most basic requirements and tasks.
There is no other test in the industry that supersedes a (Lights Out / Grid Down) event!
This is either a pass / fail event . . .
The only portion of the lights out test that is placed on a curve is the operational runtime when compared to the published APC Runtime Calculator for a specific load.
Meaning if the APC Runtime Calculator indicates a new cartridge can provide 60 minutes but you see 35-45 minutes.
Depending upon how stringent you follow your conformance you may let that slide vs ordering a hot spare immediately / a few months down.
If the operational runtime was 5-10 minutes vs the 60. The battery cartridge needs to be replaced as it’s near end of life.
The internal resistance and load test are the primary factors that determine a battery pass / fail.
Measuring spot voltage offers very little information.
Link copied. Please paste this link to share this article on your social media post.