Home > Technical (L322) > Battery drain - 2011 5.0SC - new AGM battery |
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Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8239 |
You don't "have" to code the battery in but it will take a while for the car to learn it has a new one, you could try charging the new battery overnight... Pete
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28th May 2023 9:39pm |
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AJT FF Member Since: 27 May 2023 Location: Bicester Posts: 8 |
Thanks. I’ve had it on a trickle charger and it’s now showing full.
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29th May 2023 7:03am |
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JayGee Member Since: 27 Jul 2021 Location: London Posts: 3241 |
Could also be a failing alternator. 2012 TDV8 Vogue (L322) |
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29th May 2023 7:20am |
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garyRR Member Since: 13 Mar 2021 Location: Hampshire Posts: 1468 |
Usual culprits if not are a failing alternator as JayGee suggests, or the final stage resistor "hedgehog". 2015 Range Rover Autobiography 4.4 SDV8 |
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29th May 2023 8:43am |
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AJT FF Member Since: 27 May 2023 Location: Bicester Posts: 8 |
Hi. just to follow up, I used my icarsoft diag box to run a voltage check with the engine on. I only saw between 11.8 and 12.2v rather than the 14.5ish I’ve been led to believe to expect. Would this point to a failing alternator? Thanks. |
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1st Jun 2023 4:44pm |
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JayGee Member Since: 27 Jul 2021 Location: London Posts: 3241 |
With a smart charging system the alternator doesn’t put out full voltage all the time. Try switching on every electrical load and see if it goes up. 2012 TDV8 Vogue (L322) |
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1st Jun 2023 5:39pm |
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