Anyone running an AGM battery? If so, what voltage do you have the alterntor charging at?
I'm highly considering an AC Delco AGM battery since my battery is getting weak and needs replaced anyway.
Anyone running an AGM battery? If so, what voltage do you have the alterntor charging at?
I'm highly considering an AC Delco AGM battery since my battery is getting weak and needs replaced anyway.
'03 Marauder 300A / Forged 11:1 Eaton @ 17 lbs - 87 Octane
decipha @ EFIDynoTuning
Why put a General Motors battery in a Mercury/Ford?
Motorcraft or Deka
2004 SB Ported Trilogy 48
Has supporting mods and stuff
Thanks to Marty O for his help in updating this car.
R.I.P.
Rex "SC Cheesehead"
I use Optima only cause I get them free from work.
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Motorcraft 850 is the best for Marauder I'd say. Upgrade alternator to 200Amp and You should be fine.
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While one of the links below says Grand Marquis, it fits the Marauder. They have several brands to choose from, but I like the Xpower ones, have them in my Expedition and Frontier P/U and they have been very reliable. Plus with the 5 year warranty is a plus. (They are not pro-rated, so if it dies on the day before the end of the 5 year warranty you get a brand new one at no charge)
When it comes time to replace the Marauder battery, it will be the Xpower brand.
https://www.batteriesplus.com/
https://www.batteriesplus.com/battery/car-and-truck/mercury/grand-marquis/2003/v8-4.6l-650cca-us
300A
Build Date 8/2002
Procharger #23 upgraded to 16 lbs O'Boost
Zack Motors E-85/93 engine build
4149 of 7839
34,500 miles
4:10 Gears
Detroit Tru-Trac
P.I. Torque Converter
Tuned by Tim Barth at Mr. Norms
Over the years I've found that unless you are drawing much more power than the car was designed for(big stereos etc.) the stock size battery is generally more than enough. Motorcraft 650cca was stock and held up for years more than the 1000cca Interstates I ran after. I went back to Motorcraft, bought a 750 because Ford sells them for the same price as the 650. I think the 850cca was 10-5 bucks more.
2016 Ford Mustang GT PP - Lund nGauge, BMR vertical links, MGW Shifter, BMR CB005
2004 Mercury Marauder - Eaton M112, Billetflow 3.4, Accufab SBTB + Plenum, T-56 Magnum, 4.10s, Stainless Works LTs, 2.5" Exhaust, Borla Stingers, Ridetech Coilovers + Adj rear shocks, FX-R projectors, Wilwood 13" BNSL6 + FNSL4 BBKs, S55 Gauge Cluster
440rwhp & 406rwtq Tuned by Adam @ Revolution Automotive
2063/3214
(Sold) 2003 Mercury Marauder - Stainless Works LT's, Stainless Works 2.5" Catback, JLT Intake, Mo's Xcal4 Tune
5377/7838
2000 BMW M5 - Evolve Intake, Evolve Alpha-N tune, Stoptech ST-40 BBK, UUC SSK, Dinan front STB, Dinan RSB
1996 Ford Bronco - 4" lift, 35" BFG A/T's, Punisher Valve Body, MH1 Projectors
I have no objection to using gm parts on a ford if its a better or equivalent product. After all the 10 speed is a ford/ gm transmission so newer fords come stock with gm parts regardless.
I've had bad luck with optimas back in the day. All circumstantial but I'd just rather not.
The motorcraft is rated at a little less juice and is $65 more than the delco.
The xpower is twice as expensive.
Seems like If I could get the same oem quality at a fraction of the cost why not?
I am preparing to eventually put an electrical hungry sub amp in the car.
Yes I'll also be swapping in an oem replacement 200 amp alternator from the coyote mustangs in the process.
For those with the AGMs what do you have your cold charging and warm charging voltages set to?
'03 Marauder 300A / Forged 11:1 Eaton @ 17 lbs - 87 Octane
decipha @ EFIDynoTuning
Hey Decipha,
I have done few high powered stereo systems in my vehicles, including this one. I never knew it was possible to switch up the charging parameters for the alternator/regulator...is that within the tune software? Wow...never considered it. I am running a PA Performance 220 amp alternator, and a Northstar Battery I jammed (literally) in the smaller space I've got because of my supercharger mods...
if I were to buy a factory sized battery and wanted the best AGM, I'd use Northstar (four year warranty non-pro rate battery) or maybe XS Power (three year non-pro rate warranty).
https://www.northstarbattery.com/product/nsb-agm65
https://www.summitracing.com/parts/x...odel/excursion
This is interesting! I wanna mess with my tune a bit more now...
2003 300A
Widened Rear Wheels with 295 45 Nitto G2's
Eaton Swapped by Curless
Brake Upgrade
Mo's Tune
JLT Intake
Addco Sway Bars
ADTR Coil Over Suspension
Metco Control Arms & Watts Link
SW Headers and Exhaust
Accessories By FastBlackMerc
4.10 Gears
Aeroforce Gauges
Pantherlights Headlamps
2003 300A
Widened Rear Wheels with 295 45 Nitto G2's
Eaton Swapped by Curless
Brake Upgrade
Mo's Tune
JLT Intake
Addco Sway Bars
ADTR Coil Over Suspension
Metco Control Arms & Watts Link
SW Headers and Exhaust
Accessories By FastBlackMerc
4.10 Gears
Aeroforce Gauges
Pantherlights Headlamps
I purchased my 2003 300A new and I just installed the third battery in it, a Motorcraft 850CCA that my local O’Reilly’s had in stock. (Evidently the Ford and Ram pickups use the same battery.) I’ve had such good service out of Motorcraft batteries that I’ll probably put some in my Ram when the time comes.
2003 Black 300A #3545 DOB 8/14/2002
Steeda Underdrives
BBK 65MM Throttle Body
Transmission optimized to the nines by yours truly
Marty Ochs Tunes
Auburn LSD, FPP 3.73's
Stainless Works Exhaust
ADTR Henious Billet Arms
ADTR Ridetech "Coilovers"
Addco Sway Bar
PS Z32 Brakes
N a Whole lot more
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