Interstate AGM battery made in China

Vehicles battery requirements with start/ stop are speced for a given battery. It is not a " normal cold start". This has been covered over and over again on here. You cannot draw a correlation between short battery life and start/ stop.
They are spec’ed for start/stop, but those systems will inherently have a higher load on the 12V battery. Those batteries will see more charge cycles than a vehicle not equipped with start/stop.
 
Based upon the East Penn website, they currently offer 3 grades of DEKA flooded lead acid batteries: Standard, Gold & Ultimate (in ascending order). This correlates with the EverStart Value, Plus and Maxx grades sold at WalMart. I can't attest for all of the BCI Group sizes, but the common 24F size Everstart Value & Plus batteries are physically identical in construction & weight (38.7 lbs.), while the Maxx battery has more lead plates (44.4 lbs.) & 750 CCA. The Value battery has a 1 year warranty and is rated for 585 CCA, while the Plus battery has a 2 year warranty and is rated at 600 CCA. However; the 24F Value & Plus batteries both measure 650 CCA when new. Practically speaking, you are paying $40 more for the Plus battery to extend the warranty by a year. As such, I only buy the EverStart Value line batteries for my vehicles, but the wife gets the Maxx battery for peace of mind.
While it could be I am not sure weight is everything. Physical construction of the battery and exact composition of the lead plates. I believe the lead plates are always an alloy as pure lead is too soft and weak.
 
I noticed this when I was installing a new air filter in my son's Jeep Renegade and checking on things under the hood. Look in the lower right part of the picture. Round white sticker says Made in China. Since when are Interstate batteries made in China? Battery bought at Costco January 2024.View attachment 248446

My chinese car come with a chinese AGM from Varta. Pretty sure it's the same battery as this with a different label
 
They are spec’ed for start/stop, but those systems will inherently have a higher load on the 12V battery. Those batteries will see more charge cycles than a vehicle not equipped with start/stop.

I would argue that the battery management system (keeping batteries at 80% charge typically) is responsible for shorter battery life. S/S equipped cars will have a BMS, others may not.

The draw from starting a hot engine is so low, it doesn't really matter. 0.5 seconds of 100 ish amps works out to 0.16 Wh. Out of a 70 Ah battery with about 56 Ah charge in it. Takes 3 seconds of idling to replenish that start up draw, or less.
 
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