04zjimc

Trying to find a battery for my 04z..what are you guys using? Just bought a red top less than a year old checked voltage and I had 7.5 so I assume it's toast? I drive the car on the weekend. I did have a battery maintainer.other battery can I get? Thanks

ApexerER

I just got a 78 series AGM from Advanced Auto....Its been fine....

04zjimc

I need to find a top post battery not sure if it's 78 is a side post

04silverZ06

I have an Intersate and its been great

04zjimc

I just got one thru the dealer $150 oem

zeevette

Optima yellow top 78-35.

04zjimc

I held off on the oem battery..don'tknow if it matters but I also have a sub amp in my car nothing crazy...

killeen88

Had a red top in mine for almost 3 years. The car ran terrible and always acted up (erratic idle and surging.) Eventually bought a cheap Duralast from Autozone and it solved everything.

FYRARMS

Autozone. Duralast. Done. No pain in the *** required.

danh52

You might be able to bring that red top back to life.

Hook the red top in parallel with another regular battery and then hook up to the charger. Most battery maintainer or any electronic controlled charger has a hard time with the AGM style batteries when they are too low. The second battery will get the charger started. Once it's partly charged you can just hook it up direct until filly charged.

Mine will drain if I don't drive it for 2 weeks so I hook up a maintainer if it will sit for longer.

04zjimc

I have it on charge I'm at 12.5 volts now. I think it will be ok.

04zjimc

if this battery fails I will be going for this. Just wondering how it will do with a amp sub nothing crazy basic setup.

TEXHAWK0

I use the AC Delco Professional grade Gold series with 42 month free replacement. May be the last battery you will ever have to buy.

I think it is a 72 month battery with 42 month free replacement.
I had one go out with just a couple of months left and they gave me a new one.

Once any battery goes dead, it is never the same..
If it does not have 12.75V across terminals after surface charge has dissapated, time to get a new one.
I think Optima batteries fail just as often as other batteries now that there are more in use, and people have more experience with them long term.

MY03C5Z

I'm going on 6 years with a Red top I bought at Autozone. It just sat the last 2.5 weeks without a tender and started right up. I leave in the car year round and just have a tender on it when it sits for the winter. If you want hands down the best AGM battery made get an Odyssey. The Diehard of recent years was just a relabeled Odyssey, they aren't anymore though. I have an Odyssey in my Avalanche.

.