bob2200

Independent mechanic, with owner and certified Lexus mechanic on vacation, tested my battery with handheld tester during oil change and gave me a printout by Interstate Batteries saying:

"battery rating 640 CCA, tested 12.55V, 473 CCA, highly recommend battery replacement".

Costco battery is a little over 3 years old and works fine. There was some corrosion on battery terminals, which I have since cleaned off.

Should I ignore the report and wait for my clock to start resetting; or get Costco to replace battery? Costco has no provisions for testing batteries. I called them and they said they take your word for it that the battery is bad.

sktn77a

iTrader: (2)

Depends if it is still under warranty. If not, and given that you're in the south and are unlikely to get caught in a blizzard with a frozen battery, I would agree to wait until you clock starts resetting itself.

Lexmex

Agreed, wait until the the clock goes 1 a.m.

My 5.5 year old Optima Red Top 34/78 will do the 1 a.m. every so often, but then it still runs fine and despite temptation to change it out, I've resisted given $$$ for the moment.

Alexus02

my original lexus battery lasted seven year before I changed it!