Originally Posted By: Sayjac
So the alternator is good? But no resolution to the issue?
According to tests done at O'Reilly and Pep Boys the alternator, battery(Optima Yellow Top Size 51 from S2000) and starter are all good.
Installed larger battery from Volvo V70, I think the size is 78/H6. This battery had been tested good last year, once in a while I had battery maintainer on for few days.
Originally Posted By: Vikas
Please correct me if I am wrong. You have 2014 vehicle. This might have a build date of 2013. Your battery could be around three years old. So far you have been treating the problem as if your battery is good even though you already had prior incident putting that in doubt. Without 100% making sure that you have known good battery, you started to concentrate on the alternator. You understand that battery costs $100. New alternator with labor and parts is around $500. Need I keep on hammering at you?
A battery can die in four years. It is somewhat unusual but if it had been discharged too much in the past, that is certainly possible.
I am like a broken record but as far as I am concerned, at first sign of electrical problem, replace your old battery before even grabbing multi-meter. While replacing it, clean up the contacts and give a visual inspection.
Sure you could add water, check electrolyte and get another year out of the battery but if you can't afford to replace battery every four years ($2 per month), you have no business of owning a vehicle.
I think you misunderstood.
I didn't concentrate on the alternator from day 1.
Series of event:
Car didn't start at a strip mall.
Jump start didn't work, probably because of a lousy home made jump cable.
Swap OE battery with Optima Yellow Top from S2000, car started at first click. Suspect dead battery.
Charged dead batter for 2 nights with battery maintainer. Disconnect maintainer for few hours then had battery tested at Pep Boys and it was good.
Day after took the car to have alternator test at AZ. First it was good, then the tester punched some buttons and said it was bad, I saw something like voltage regulator flashing.
This test at AZ made me think the alternator is bad. Also, the OE battery retained voltage level of 12.7-12.8V a day after tested without maintainer.
As you see, PB said battery was good and AZ said alternator was bad. Without knowing how to test alternator with MM until yesterday, I assumed that those testers know what they were doing.
Further tests by different stores/clerks showed that all related starting components are good.
One good thing came out of this mess is the Accord can accommodate larger battery than size 51R. The only problem is the heat shield can't be used with larger battery, so I need to fabricate a custom heat shield for it.