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  1. #1
    Registered Member One Ring
    Join Date
    Aug 31 2009
    AZ Member #
    47137
    Location
    Austin

    S4 Battery Selection...Any suggestions

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    Im buying a new battery for my 2005.5 S4, anyone have a recommendation for which battery to buy?

  2. #2
    Senior Member Two Rings rxbike's Avatar
    Join Date
    Apr 01 2009
    AZ Member #
    40614
    My Garage
    04 b6 s4, 07 toy tundra dc
    Location
    CA

    Optima Red top
    2004 B6 S4 black on black. VMR RS4 reps wheels, APR down pipe and exhaust, JHM tune,JHM intake manifold and throttle body, JHM lightweight pulley, Snub Mount; Eclipse AVN 726E nav/dvd unit. AR slot/slot/dimple rotors
    2003 Porsche 996 TT EPL stage 1 tune, AR Design 3" xflo street exhaust, Clutch Master 3600lbs clamp force/LWFW
    2000 Porsche Carrera C2 Schnell Header/Exhaust , Schnell Cold Air, 19" SSR GT-3
    2007 Toyota Tundra 5.7L doublecab TRD intake
    2003 VW GTI 1.8T APR stage 1

  3. #3
    Senior Member Two Rings Naudi04's Avatar
    Join Date
    Dec 02 2009
    AZ Member #
    51568
    My Garage
    2004 S4 6MT
    Location
    Oregon

    Quote Originally Posted by rclewis1 View Post
    Im buying a new battery for my 2005.5 S4, anyone have a recommendation for which battery to buy?
    Depends on if your looking for a lightweight battery or extreme durability (cold weather) battery. Also consider CCA rating and make sure you don't downgrade.

    Lightweight options:
    Braille Light-Weight Battery 15-21lbs
    Odyssey 15lbs - PC680
    Deka 11.35lbs + It's spendy though.

    Personally if I was going to replace a factory battery I would go lightweight.

    Optima is always a good choice for reliability, but they are not lightweight.

    Decent write up on this replacement.

    http://www.audiworld.com/tech/elec129.shtml
    2004 Audi S4 6MT 40k miles, Light Silver (Metallic) w/Black-Silver Alcantara
    For Sale <- click link

  4. #4
    Established Member Two Rings RocC4S's Avatar
    Join Date
    Dec 03 2007
    AZ Member #
    23070
    My Garage
    '10 VW GTI, '10 Audi Q5, '03 Ferrari 575M, '87 Alfa Romeo Milano Verde
    Location
    Mercer Island, WA

    +1 on the Odyssey.

    I however would go with the slightly larger PC925 (24lbs.).

  5. #5
    Veteran Member Four Rings 2PUTT's Avatar
    Join Date
    Nov 09 2005
    AZ Member #
    8715
    Location
    UBIQUITOUS

    i went with the Optima Red Top. $127 @ Costco. 25 pounds weight savings.

    http://www.audizine.com/forum/showth...the-LW-battery
    ===================
    2009 Audi Q7 TDI
    2001 Audi S4 Avant
    CHALLENGE MW
    AWE | AWE | AWE

  6. #6
    Veteran Member Three Rings
    Join Date
    Nov 27 2007
    AZ Member #
    22927
    My Garage
    04 S4,Volvo P1800,03 Silverado
    Location
    Massachusetts

    just installed an optima redtop 3 days ago. the 34R model.... i am happy with it
    04' Nogaro S4 - 19" BBS RS-GTs - H&R Coilovers - Hotchkis RS4 Sways - 4500k HID fogs - JHM solid shifter trio -JHM intake manifold - JHM port matched intake spacers - JHM longtube headers - JHM tune - Fast Intentions resonated catback - Snub mount - Vag mods - hardwired V1 - Clutchmaster Stage 3 clutch & 13.5 lb flywheel - Euro B7 RS4 steering wheel - Cayenne Big Reds - stern engine mounts - Stern upper control arms - K&N panel -

  7. #7
    Veteran Member Four Rings drew's Avatar
    Join Date
    Jul 27 2004
    AZ Member #
    2917
    My Garage
    E60 M5 Gone: 996TT stage 3, E46 M3, B6 S4
    Location
    Orange County

    so the optima red top fits like oem?

  8. #8
    Senior Member Two Rings rxbike's Avatar
    Join Date
    Apr 01 2009
    AZ Member #
    40614
    My Garage
    04 b6 s4, 07 toy tundra dc
    Location
    CA

    No, it is 3/5 of the oem battery so you will need to stretch the batt cable a little to fit. Very easy install, less than 10 minutes and if you have a batt jumper pack, no need to reset the ECU issue
    2004 B6 S4 black on black. VMR RS4 reps wheels, APR down pipe and exhaust, JHM tune,JHM intake manifold and throttle body, JHM lightweight pulley, Snub Mount; Eclipse AVN 726E nav/dvd unit. AR slot/slot/dimple rotors
    2003 Porsche 996 TT EPL stage 1 tune, AR Design 3" xflo street exhaust, Clutch Master 3600lbs clamp force/LWFW
    2000 Porsche Carrera C2 Schnell Header/Exhaust , Schnell Cold Air, 19" SSR GT-3
    2007 Toyota Tundra 5.7L doublecab TRD intake
    2003 VW GTI 1.8T APR stage 1

  9. #9
    Veteran Member Four Rings WinterRunner's Avatar
    Join Date
    Oct 11 2007
    AZ Member #
    21717
    My Garage
    12' DG R8 5.2 6mt 22' CG Q3 S+ 07' DG RS4 01' A4 avant 5mt
    Location
    Suburbia

    I would go Deka if I had my choice but all said brands are more than adequite and all have some weight savings, obviously some more than others.....
    12' R8 Daytona/CF V10 6MT
    ~VF750 supercharged~Avior Ti non-res~GT coilovers~Girodiscs~Wingbacks~CF steering wheel~Maxton Aero bits~
    07' RS4 Daytona/Panda
    ~Jackal tune~Zinram 70mm DPs~JHM res catback~Custom CAI/SAI del~Bilstein PSS9s~Girodiscs~JHM shifter~

  10. #10
    Active Member Three Rings AndyGs4's Avatar
    Join Date
    Jan 26 2010
    AZ Member #
    53977
    Location
    Right here.

    For OEM replacement, I would personally just go to Sears or Autozone.

    For lightweights:
    Braille B3121 or Deka ETX30L (same size). Get a mounting bracket with it since it is smaller. Factory battery is pushing 60lbs, these are 21. Quick, easy way to drop almost 40lbs off the car.
    2004 S4
    JHM Headers - FI Catback - K&W Coilovers - JHM B7 LW Flywheel - JHM LW Pulley - Apikol Snub - 19" Neuspeed RS10s - Stern MM

    Audis - 86 5000CS Turbo sold at 150K - 95 A6 sold at 177K - 00 Jetta 2.0 got hit at 220K

    Resto - 55 Chev3100 Stepside - 68 Mustang Coupe - 73 Mach 1

    ...w.w.w...e.u.r.o.a.d.d.i.c.t.i.o.n...n.e.t...

  11. #11
    Veteran Member Four Rings 2PUTT's Avatar
    Join Date
    Nov 09 2005
    AZ Member #
    8715
    Location
    UBIQUITOUS

    Quote Originally Posted by drew View Post
    so the optima red top fits like oem?
    yes. it also comes with an adapter to make it nice and snug.
    ===================
    2009 Audi Q7 TDI
    2001 Audi S4 Avant
    CHALLENGE MW
    AWE | AWE | AWE

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