WWDiesel -
Do you have a heater installed in your EGR eliminating elbow? No!
Also, when I look up that super battery it says CCAs equal 930. I think you are accidently referencing the CA. Either way, two decent batteries would be cheaper and have a greater output (IF I can fit them).
CCA rating at -18°C (0°F) 930 A
CA/MCA rating at 0°C (32°F) 1070 A

https://www.northstarbattery.com/produc ... 65?p=51227

BillyBob -
Interesting concept I will keep that in mind if I abandon the under the hood approach. I want to preserve the precious interior cargo space as best I can until then.

WWDiesel -
Do you have a heater installed in your EGR eliminating elbow?
Also, when I look up that super battery it says CCAs equal 930. I think you are accidently referencing the CA. Either way, two decent batteries would be cheaper and have a greater output (IF I can fit them).

https://www.northstarbattery.com/produc ... 65?p=51227

Winter starting performance is greatly assisted by having the right glow plugs with the right software - it appears to be a mismatch, but the 5V metal plugs with the 7V programming has been quite successful this year from both personal experience as well as reports from the field.

I'm talking about two batteries smaller than stock but not each half stock size. That wouldn't gain anything. Battery capacity is a game of surface area and the sizes are generally reflective of their output (some squeeze move surface area in less space achieving higher capacities but at a higher cost). I am talking about two group 101 batteries for example. They are each smaller with less capacity but I would have a CHANCE of squeezing both in and netting 1300cca. Each of those batteries can be had for 100 bucks with a 4 year warranty.

I have the EcoTune and eTecno plugs. I replaced the ceramic plugs when the eTecnos went in. Does this help me know what the settings are? Are talking about deliberately overloading the steelies then?

I think this means I have the 7 volt plugs and the settings remain at 7 volts.

The Odyssey PC1750 is higher rated and cheaper on Amazon.

Mine test at over 1200cca's while only being rated at 950cca.

Your not going to get 2 smaller batteries to have more output for cheaper,your looking at some exotic batteries to fit in that space and have over 600cca's which cost about twice as a PC1750(each and can not be charged by the alternator),forget about side terminals in that size also.

The Duramax LLY grid heater is in also. Anyone installing this heater needs to cut their own gasket and not reuse the metal gasket. It acted like a reed and sound like my Jeep was powered by a Black Rider from Lord of the Rings (Nazgûl) as it leaked boosted air. I reused the stock elbow and attached the grid heater and its’ flanged hose barb to that. The Mishimoto hose was perfect length and placement. The Duramax hose barb is about 0.25 inches bigger so it took some effort and silicon lube to slip the hose in place. (skip the sex jokes)

The fuse box can be easily flipped to the other side of the batteries as show. I still need to mount that box permanently. I cut a flat aluminum tray and bent one side up on the engine side. I welded some brackets on to retain the batteries and used rubber where I could to promote vibration absorption. There is an ear welded to the wheel side the re uses one of the old trays mounts. Below the tray is a wood and rubber spacer/support that uses another of the old mounts. It is pretty solid and I can shake the Jeep by the batteries. I did this in a hurry for state inspections so it is not as pretty as I would have liked but darn, I got 1700 cca and it works so I am happy. The Jeep starts totally different now. I didn’t realize how bad the last single battery had gotten. I got the batteries returned at an auto parts store for 60 each.

I will use a starter solenoid for the grid heater. I am told it should draw about 90-110 amps. I am not sure if I will use a battery isolator or not.