SLA Battery LC-XD1217PG is the premium type of Panasonic in those 12V lead acid battery at 17Ah.
Panasonic product specifications talking about 10~12 Years life cycle, and according to that I did pay the price premium so to purchase two of them, my application is one APC SUA 1000XL uninterpretable power supply.
I purchased them from Germany bright New and truly fresh production batch too.
At Mar 21, 2009 the shop kessler-electronic received my payment and they send the goods really fast in Greece.
Today that is September 19 2015, these battery cells are both 6.5 years old, in all those years them never needed to engage in a long term power failure, and by rough calculation them engaged at about 20 times at instant mains power failure conditions that is 2~5 seconds duration.
Regarding this APC SUA 1000XL uninterpretable power supply, this working at just 22 ~25% of it rated load capacity, especially after the death of my CRT screen which this having significant consumption compared to the fresher TFT computer monitor that I am using in the past 4 years.
Technically speaking these two LC-XD1217PG working as a pair, they did started to fail at the diagnostic battery-self test.
This diagnostic battery-self test, it is using a fixed DC current load, I was never aware of how much this was until to measure it today, this is 10A.
According to specifications LC-XD1217PG this have Internal resistance of Approx. 12 mΩ (mOhm).
By measuring my batteries, battery A has 30mOhm & Battery B this has 50 mOhm.
A good friend of my gave me for free a pair of LPC12-38 (12V38AH), them was one year used at wheelchair application.
Either way now I do feel safe again in the regard that my uninterpretable power supply this will engage at a power failure.
But the question still remains, I paid to Panasonic a price premium so me to have 10 years of trouble free uninterpretable power supply operation.
Back then I have the choice to select among battery models with different life cycle expectancy, my options to choose from was 4Years or 7Years or 10 Years (product code).
Battery capacity among the years changes to the worst, but this is not important right now, even a 50% drop in capacity over the years is expected and I can not blame Panasonic for that.
Battery warranty plans in our times this is something that most vendor's are hiding from.
Even Bosch cars battery maker, this have a hilarious method by an electronic tester with on board printer, this must test and print the test results so you to gain a proof that the product is good or bad.
At 100% of situations of this Bosch battery diagnosis method, your car will be unable to start the engine, but even so the test will show that your battery is GOOD.
SLA Battery LC-XD1217PG is a product distributed by the industrial division of Panasonic.
Industrial division of Panasonic Europe this is in Belgium, and I have contact them and inform them about my incident.
They did shown interest about getting informed for the problem, and I am waiting for their second communication in few days, so them to inform me about what they can do as assistance in my case?
By this topic I am making this story know in public, from a consumer viewpoint I think that every one need to gain awareness of how this Industrial division of Panasonic Europe behaves to customers which them shown faith to their 10~12 Years life cycle specification?