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Discussion Starter · #1 · (Edited)
I had this discussion with bartonmd on the FB group earlier today and he provided a few options for battery replacement upgrades over what we have from GM. As you guys may know, the 1.8/1.4T battery tray is adjustable and has plenty of room left for a bigger battery.

Here are the specs for the OEM H5/47 group size, from an AutoCraft Gold battery:

H5/47:
520 Cold cranking amps
7.5" Height
9.57" Length
6.938" Width
Weight: 45 lbs
Price: $161.99

The following two group sizes fit in our battery trays. Here are the specs I found for the Advance Auto AutoCraft Platinum AGM battery. I strongly recommend any AGM battery. I've posted the differences over the OEM battery (assuming the AutoCraft Gold is equivalent or similar) in bolded green. The CCA specs and prices will vary slightly but not by a whole lot.

H6/48:
760 Cold cranking amps (+240 CCA = +46%)
7.5" Height
11" Length
6.938" Width
Weight: 45.66lbs (+0.66lbs = +1.5%)
Price: $174.99 (+$13 = +8%)

H7/94R:
850 CCA (+330 CCA = +63%)
7.5" Height
12.44" Length
6.938" Width
Weight: 51.83lbs (+6.83lbs = +15%)
Price: $187.99 (+$26 = +16%)


Here is what the OEM H5 battery looks like in the battery tray:


Here is what the H6/48 battery looks like in the battery tray:


Here's a picture of the H7/94R battery in the Cruze:



Remember, if you have an Advance Auto Parts store near by, there is almost always a 30% coupon available that will knock $50 off the price of a battery. Order online to pick up in store.
 

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Discussion Starter · #3 ·
What impact will a larger battery have on our variable output alternators?
None. The system will still charge based on the voltage of the battery.

bartonmd did note however that his car started faster with the H6 AGM battery than it ever did with the OEM battery.
 

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Discussion Starter · #11 ·
The Cruze diesel battery fits all Cruze's.
I believe it is a 850cca........fills the entire battery tray.

Rob
I believe that is the H7/94R that I posted. Please correct me if I'm wrong.
 

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Discussion Starter · #19 ·
This may be a dumb question, considering it's obviously a larger battery. So, the larger battery will give you more cold cranking amps, but does that also mean that you get more amp hours. For example, can I listen to the radio longer with the engine off without worrying about killing the battery as quickly?
That is correct, and AGM batteries are typically much better for deep cycling as well, so if you do drain your battery a fair amount, it won't reduce its life like it will a regular battery.
 

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Discussion Starter · #47 · (Edited)
I notice allot of you are going with the larger battery, what's the weight difference vs stock? If GM thought every pound counted with the ECO enough to shave off 3 gallons of gas(a gallon of gas is 6 pounds), would think adding any additional weight could start bringing down your MPG.
I posted the weight differences between the OEM replacement and the larger AGM batteries in post 1.

The H7 is less than 7 pounds heavier than the lead acid OEM size battery.
 

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Discussion Starter · #84 ·
What I would do, is buy a Lithium battery, and put a 3Farad cap in parallel with the battery.
The CAP is just there to smooth out the charging current.
1 or 0.5 Farad cap will be just as good, but since it's only a few bucks more for a 3 Farad, I'd just get a 3 farad.
Besides, they also help in case you have a power-hungry radio with subs.
The failure rate of cheap caps is high enough that I wouldn't recommend this to everyone as a replacement for an OEM battery. The combination may not have enough cold cranking capacity for everyone else to start their cars with on exceptionally cold days here in the northern midwest. Good caps cost as much as a battery, so at that point, you may as well just pick up an H7 AGM and be done with it. A cap is really just a bandaid for a weak electrical system when it comes to sound systems, and has a tendency to mask real electrical issues that should be addressed.
 

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Discussion Starter · #87 ·
For anything under 500W rms, I see no reason TO use a capacitor. In fact, given that all they really do is bandaid weak electrical systems, I don't see as reason to use one, ever.

Sent from my STV100-1 using Tapatalk
 
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