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Replacing your battery? Here is some info.

13K views 1 reply 2 participants last post by  CtCarl 
#1 · (Edited)
Here are a couple thoughts I want to pass along.

Note 1:
I just replaced the original battery in my 2009 SRT last month. When these batteries go, they don't give you any warning. They just go. Mine started like normal. I drove to a store, came out within 10 minutes, and it didn't even have enough power to budge the motor. Just a click. It was great, and then it was done.

Make sure you get a battery with the correct amount of Cold Cranking Amps (ccas). I don't know about other models, but I know the SRT batteries have a lot more ccas than the typical auto store might try to sell you (because the less ccas, the cheaper they are). Also, be careful on what some stores tell you. Some may quote you the Cranking Amps (cas). You don't care about the cas. You need to know the ccas. My original battery had 730 ccas. I bought a new one from Dodge and I believe it has 740 ccas. More is always better. You don't want one with less.

Note 2:
The batteries are mounted in the trunk. The trunk is considered part of the passenger compartment because air in the trunk can circulate into the front of the car.

Your original battery has two top covers. One cover has a hole that a vent tube plugs into. That vent tube goes down through the floor so any time the battery vents, it vents the gases outside the passenger compartment. The other top cover does not have a vent hole. It is sealed.

I have no idea if new aftermarket batteries have a provision to plug-in your vent tube. I can tell you this about the new Dodge battery: It also has two top covers. However, both of the top covers have open vent ports. So, I had two open vent ports and only one vent tube.

The new Dodge battery came with flat plugs covering the battery terminals. One of them had a decal that said, "Installation instructions." I initially disregarded them because I know how to install a battery. However, I later found out that those instructions tell you to cut off the vent plug that is molded into that flat plastic piece and put it into the "other" open vent port on the other top cover - sealing it off. So, don't throw anything away until you see and use the vent hole plug.

My original SRT battery:
 
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