This topic it is now, an ongoing investigation about the discovery of the source (manufacturer) of this battery labeled as:
IRIS 12V 45AH 400CCA
MF454514
Intro: I am owner since the year of 2004, of one APC UPS 1000XL and this is a special version which accepts external battery packs. Several pairs of 2x12V in a chain, for the purpose of 24Hours run time as max.
In the past 10 years I am using a pair of regular car batteries (45AH~65AH) that I get as used but working, from the pile of batteries that they are rejected, as reliable ones for use in a car.
Most of these batteries they come from vehicles or boats, which they are not used frequently, and battery voltage this sag due long time of this battery staying unused.
My APC UPS 1000XL, this is able to deliver 10A Max of charging current along of constant pulse charge, and this type of charging, this has been proven as a great way, about the recovery of car batteries which stayed unused for a long time.
At 2019 I did find as used a battery labeled as NORD 12V 65AH along another one used battery for our family car, a 12V 45AH which this was at very bad shape.
Now at 2021, the NORD 12V 65AH still holds well (55AH approximate capacity) but the second battery (that is seven years old) this stopped to qualify even as battery for the UPS.
October 2021 – New find = IRIS 12V 45AH I have never seen in my life such sighs of damage in to a car battery.
IRIS 12V 45AH, this is a battery production of 11/2019 and were installed in a vehicle in Greece as new at 4/2020, and were removed/exchanged at 10/2021.
Battery evaluation shown:Battery capacity 50AH = Undamaged
Internal resistance = 6 milliohm at 1kHZ
Battery idle voltage 13.300V as Max
Battery charge current at
14.5V this is not less than
450mA ~ 500mA (even after 48H of charging).
This is to me an indication, that something with the manufacturing process of this battery internal plate when wrong.
The good news is that this battery has exceptional performance at the new electrical application that this is now serving at, the UPS average load in DC Ampere this is 9A ~ 12A, and this is a very minimal stress compared to car starter motor.
IRIS Brand Web search I found nothing, other than one accidental find of similar product this branded as Helios 12V 45AH in the Greek market.
I did a telephone call at the cars electrician and installer of Helios brand of batteries.
He told me that IRIS and Helios both are production of VARTA in Germany.
But this is half of the story, because IRIS and Helios they seem to have much more in common with SEBANG GLOBAL BATTERY CO.,LTD
KOREA.
SEBANG KOREA this deliver several products branded as GLOBAL in the Greek market.
My own now IRIS labeled battery this has identical top plastic cover with the SEBAND KOREA, but identical product specs they are not found at SEBAND product line.
Electrical Specification’s alone of IRIS 45AH these matching with VARTA Black Dynamic 545 412 040.
But the relevant VARTA PDF this is poor, not even mentioning max charging current.
While SEBAND KOREA informs that the 45AH can be charged at 5.5A as max.
Now speaking of pricing, this type of battery when labeled as Helios or IRIS or GLOBAL or ROCKET or VARTA, this is 50~60EUR price range.
If you find this labeling issue as extremely confusing, and the market collaboration games of VARTA as hilarious, then you do understand too, the level of my own confusion.
Now the 1.000.000 Euros question, this is who skipped entirely QC testing at the factory.
This IRIS 12V 45AH this is fresh regarding age battery, the low internal resistance this is a proof that there is
no plates sulfasion issue.
Idle voltage at 13.3V this does not indicate sort circuit of a plate.
Even so, battery circuit resistance at charging this is not normal, and I am still suspecting that it’s one of all plate elements they were miscalculated at the assembly.
We would expect per plate (cell) voltage of 2 Volts, but this is less, and even when battery gets warm, its one plate (cell) this heat up by a uniform way.
If you have become an eye witness of similar car battery behavior, then do not hesitate to share and your own experience at this topic.
Links: https://www.varta-automotive.com/en-gb/products/varta-black-dynamic/545-412-040https://www.gbattery.com/product/carIRIS 12V 45AH plastic case this is used at SEBANG (AGM Series) but only at larger in dimension batteries ( For AUTO STOP (ISG System) vehicles).