The negative battery cable on my 1999 Deville seems worn. The black plastic cover around the battery screw isnt there and I see green corrosion around the crimped copper. The connector to the negative terminal also seems corroded.
As for battery voltage, I bought a new Everstart MAXX from walmart in June. My previous battery was a Diehard Gold which I bought on July 2007. It always started the car good but I decided to replace it because of age. When I measured the voltage of the new battery, it was 12.49 with a multimeter. This means it was ~80% charged? The manufacturing sticker also said June 2014. I put it in my car and it started fine. But the running voltage seems low. Before starting, the battery voltage reads somewhere between 12.3 and 12.5. After starting the voltage goes to 14 -14.1V. However after driving, the battery voltage can stays in the 13.2 -13.7 range which seems low. These voltages were the same with the previous battery. Reading around the voltage should always be around 14.3 - 14.7V. It could be a worn alternator but the car never had trouble with charging.
The new battery always starts the car but sometimes the negative cable gets a little warm so I want to replace it.
RockAuto has 2 options:
This one is around ~$20 and has somewhat thick ends
http://www.rockauto.com/catalog/moreinfo.php?pk=1597092&cc=1352865
This one is ~$35 and has thin ends, This looks like the one closest I have in my car
http://www.rockauto.com/catalog/moreinfo.php?pk=81897&cc=1352865
Which one do I choose? This is a Base Deville and has the standard Alternator (140Amps?).
As for battery voltage, I bought a new Everstart MAXX from walmart in June. My previous battery was a Diehard Gold which I bought on July 2007. It always started the car good but I decided to replace it because of age. When I measured the voltage of the new battery, it was 12.49 with a multimeter. This means it was ~80% charged? The manufacturing sticker also said June 2014. I put it in my car and it started fine. But the running voltage seems low. Before starting, the battery voltage reads somewhere between 12.3 and 12.5. After starting the voltage goes to 14 -14.1V. However after driving, the battery voltage can stays in the 13.2 -13.7 range which seems low. These voltages were the same with the previous battery. Reading around the voltage should always be around 14.3 - 14.7V. It could be a worn alternator but the car never had trouble with charging.
The new battery always starts the car but sometimes the negative cable gets a little warm so I want to replace it.
RockAuto has 2 options:
This one is around ~$20 and has somewhat thick ends
http://www.rockauto.com/catalog/moreinfo.php?pk=1597092&cc=1352865
This one is ~$35 and has thin ends, This looks like the one closest I have in my car
http://www.rockauto.com/catalog/moreinfo.php?pk=81897&cc=1352865
Which one do I choose? This is a Base Deville and has the standard Alternator (140Amps?).