Well, My Battery Is Shot... Recommendations?

Discussion in 'E46 M3 (2001-2006)' started by CDS, Aug 1, 2020 at 5:09 PM.

  1. 1 Aug 2020 at 5:09 PM #1
    CDS

    CDS A mere Chipper

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    Had it tested today after needing to charge it twice over the last few months and the report said it was pretty much dead. So, I'm looking for an OEM or better than OEM replacement, as well as where to buy.

    Any help appreciated as always.

    Cheers!
     
  2. 1 Aug 2020 at 5:32 PM #2
    IanB

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    Look at the oem ones, not much more than Bosch etc. I believe Exide make/made the oem batteries. I went Bosch last time but it hasnt lasted long, so will look.at oem or exide as my first factory fit battery lasted 13ish years.
     
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  3. 1 Aug 2020 at 5:36 PM #3
    AgSurfer

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    Price from site sponsor Cotswold?

    You might be surprised...

    They won’t post it out to you, but you can get your local dealership to price match.
     
  4. 1 Aug 2020 at 5:43 PM #4
    Dek

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    Tayna Batteries. Good choice. Good prices and excellent delivery service.
     
  5. 1 Aug 2020 at 5:49 PM #5
    Matt330ci

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    I recently got a Yuasa battery for about 90 quid.
    Can't really say if it's good or not as it's only been in a few weeks
     
  6. 1 Aug 2020 at 5:52 PM #6
    CDS

    CDS A mere Chipper

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    Thanks guys, I'll give Cotswold and Tayna a go.

    Mine's a Bosch, which I thought was OEM for some reason, but I'll have a look at Exide.
     
  7. 1 Aug 2020 at 6:23 PM #7
    CDS

    CDS A mere Chipper

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    I entered my reg into the Exide website and the EK700 got me about as excited as I can get about a battery. What a beauty!
     
  8. 1 Aug 2020 at 6:55 PM #8
    klan8456

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    S4 008 Bosch Car Battery 12V 74Ah Type 096 S4008

    From Tayna batteries
     
  9. 1 Aug 2020 at 7:24 PM #9
    N7typhoonX

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    +1 to Tanya batteries, excellent service from them bought the F19 Varta Silver Dynamic Car Battery 85Ah to replace my dead bosch S and is a oem fitting and seems really good battery.
    Paid less than £95 and free shipping.

    Ivo
     
  10. 1 Aug 2020 at 9:21 PM #10
    jimyu

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    If you have access to Costco they give lifetime guarantee on Bosch batteries
     
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  11. 1 Aug 2020 at 10:15 PM #11
    zulfario94

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    Exide premium 0017 is the battery I put in my m3. Fills the battery tray, better cold cranking and rated higher than standard. Cost me £83 off Tanya batteries on ebay with 4yr warranty
     
  12. 1 Aug 2020 at 11:03 PM #12
    SINGH72

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    Get from the dealers,not much diffrence in price... just for the bmw badge hey..
     
  13. 2 Aug 2020 at 8:43 PM #13
    CDS

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    Cheers for all the info guys. The more research I do into AGM batteries, the more I think they might be better suited to how my M3 gets used, ie. infrequently. Realoem gives newer part numbers now that point to AGM batteries, too.

    £83 seems pretty good!

    Yeah, I'll give them a ring tomorrow to see what they come up with.
     
  14. 2 Aug 2020 at 9:15 PM #14
    SINGH72

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    Mate truth is .... get an oem battery .. not that theres any diffrence,jus for the badge, but if ur car is hardly used u need a ctek charger... to keep it up to full charge..
     
  15. 2 Aug 2020 at 10:26 PM #15
    IanB

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    Like the Exide ek700 mentioned above it seems to be designed for stop/start and is AGM, anyone know how either stop/start or agm differ from what I call a normal battery?
     
  16. 2 Aug 2020 at 10:54 PM #16
    AgSurfer

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    Seriously Dude... not sure if you missed my post above or just paid it no attention.

    You’ll get a spanked by your local dealer when you ask them for a price. Just give Cotswold a call and get a price from them first.

    And you only need an AGM if you’ve got a car equipped with stop/start tech. They’re designed to crank a lot more often than regular batteries.

    You can’t beat OEM and if yours getting it with the BMW stamp and paperwork for a fiver extra, in my head it’s a no-brainer.

    :suicide:
     
  17. 2 Aug 2020 at 11:40 PM #17
    whipstock

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    BMW Southampton wanted £250! when I called them last week, I went for a F19 Varta Silver dynamic 85Ah from a local supplier, the engine spins up so much quicker now.
     
  18. 3 Aug 2020 at 10:05 AM #18
    CDS

    CDS A mere Chipper

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    They were designed for stop/start, which tells me that they are equipped to handle heavier workloads. I wouldn't have considered (or even known about them), but realoem.com actually mentions three different compatible models:

    [​IMG]

    After doing a bit of research, it seems like this type of battery would suit the kind of use my car gets:

    Is an AGM battery worthwhile without automatic start-stop technology?


    No, didn't miss it, I do plan on contacting Cotswold first so cheers for that; I used them recently for a set of brakes :thumbsup:

    Re. AGM batteries - see above. If I can get a BMW-stamped one from one of the three part numbers listed for the E46, unless it's horrendously more expensive, I don't see why I wouldn't get one over a regular battery. Designed for higher workload, can handle extreme temperatures better, longer service life etc.
     
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  19. 3 Aug 2020 at 10:12 AM #19
    CDS

    CDS A mere Chipper

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    Yeah, with you on OEM equipment. CTEK charger is a pain in the arse in my case though, the car isn't parked next to the house so I can't just hook it straight up to the car to maintain, and to keep digging the battery out of the boot and bringing it in periodically is a pain too.
     
  20. 3 Aug 2020 at 10:43 AM #20
    monkeyboy

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    I replaced mine about 2 years ago with a oem one, they had on the shelf £116 all in no hassle no drama or ........you can waste A few hrs searching the internet and forums and asking 500 people getting 500 different answers to save yourself £20.....just get one you know will work & fit properly with zero effort and zero hassle
     

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