Member Since: 17 Jul 2013
Location: Somewhere in the UK
Posts: 63
Aux battery
I've got a split charge system fitted by the previous owner. The problem I have is the battery that came with the car is a standard car battery and it doesn't fit properly.
Can anyone advise the best battery for the job.
30th Jan 2023 7:50 pm
M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8100
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30th Jan 2023 8:10 pm
Moo D3 Decade
Member Since: 13 Aug 2010
Location: Wiltshire
Posts: 13906
Yellow Top or Odessy New Defender L663 110 SE (known as Noddy!)
Sold Volvo XC90 R-Design (known as Basil)
Sold - D4 HSE (Known as Gerty)
No longer the Old Buses original owner
231,000 miles and counting
05 S manual owned from March 2005
D4 Face lifted
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V8 Front brakes
BAS Remap, Allisport Intercooler and deCat
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30th Jan 2023 8:33 pm
SpiderBaby D3 Decade
Member Since: 21 Sep 2007
Location: Liverpool
Posts: 1399
I'm guessing you want a replacement auxiliary battery - fitted in the driver side (if RHD) box - the one with the brake fluid reservoir?
If so something around 242 x 175 x 190 millimeters will fit - at least that's what I use albeit I've removed the backup alarm sounder.
You'll want a leisure battery. Lots recommend Optima Yellowtop - I've had one before and wasn't impressed given the cost. My current one (2 years old) is the sort used on caravans etc and I've had no issues - especially at 1/3 the cost of a Yellowtop.I see no ships........
30th Jan 2023 8:34 pm
480GT
Member Since: 18 Apr 2022
Location: Oxford
Posts: 43
I suppose it comes down to whether or not you want the option to use it as a backup cranking battery (and whether or not your split charge system allows you to do that) - if so then a yellow top is a good compromise as it theoretically has the benefits of a deep cycle for leisure use, but can also deliver a lot of amps very quickly for cranking. If not then a deep cycle leisure battery would be ideal.D3 2005 HSE
GAP IID
30th Jan 2023 8:38 pm
matlandy
Member Since: 17 Jul 2013
Location: Somewhere in the UK
Posts: 63
Thanks for all your replies
1st Feb 2023 6:30 pm
loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 600
Stay clear of the yellow top, quality is crap since they started making them in Mexico, you can fit an 85ah AGM if you cut a hole in the aux. cover.
Heat isnt an issue and mine is still good after 5 years.
2nd Feb 2023 2:34 am
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15213
So, what is the issue with the yellow top? ……. as ‘crap’ doesn’t explain the reasons.
Says the man who’s just bought a 75ah YT in readiness to fit a split charge system. I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.
I agree with loanrangie, I have had two yellow tops and both failed just after 15 months of use, I fit have now fitted an Odessy as my aux battery and still going strong after 4 years with my 15 year oldTraxide kit.
Flack
2nd Feb 2023 12:03 pm
loanrangie
Member Since: 18 Jun 2017
Location: Melbourne
Posts: 600
ronp wrote:
So, what is the issue with the yellow top? ……. as ‘crap’ doesn’t explain the reasons.
Says the man who’s just bought a 75ah YT in readiness to fit a split charge system.
They swell and drop cells, had numerous reports from owners. Used to last 5-6 years but not anymore.
Most here fit a SSB dry cell AGM which is 80 or 85AH and fits in place of the YT albeit slightly taller i believe.
3rd Feb 2023 4:24 am
ronp
Member Since: 29 Nov 2006
Location: North Yorkshire
Posts: 15213
Thanks for that.
Unfortunately now too late for me to change.
But now I know what the potential issues are, I'll keep a look out.I was a normal heterosexual chap, but in these new woke awakenings I now identify as a Wardrobe.
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