What brand name do the Costco batteries fly under?
I just noticed on the OEM's in my 03, that the passenger side negative post has some corrosion(tells me the post seal is starting to leak). They still pass my hand held load bank test, and the little window is still green, but I will replace them, just not sure with what, was always thinking DieHards.
Having worked in DC power plants for the Telecommunications industry for many years, I have a fair understanding of battery construction and maintenance. I know Johnson Controls, Exide and C&D manufacture most wet cells, and also a lot of the VRLA's(valve regulated lead acid). However they may not use the same specs/standards for different suppliers.
Has anyone had much experience with the NAPA Exide batteries? It seems as far as warranty, there is a NAPA store in almost every small berg across the country, so getting an adjustment should one be needed, would be simple.
Whenever we replaced a string of batteries at work, we always had to float them @ 110% above nominal voltage, offline, for up to 100 hrs before putting them online. We maintained a daily voltage reading for each cell(during the initial 100 hrs, every quarter thereafter), and these records remained with the string for life. These were 20 yr batteries, so for warranty purposes the records were mandatory. So, my question is, does anyone believe it to be a good idea to float the new replacements with a trickle charger for 24hrs, maybe at 13. 5 volts, before installation?
Costco batt's are Johnson Control batt's same build as Interstate but not green and white case just black. Better warranty higher CCA. Installed Costco Batt's 2 years ago have never looked back. Cant really beat the price and warranty any costco any place.