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• Vauxhall Zafira 05 plate - Battery Light Flicks on and off 3 Feb 2012 (Forum)
    I have had a load test done and at idle the battery is showing 14.2 under load 13.9 to 14.0.    What i would like to know is why is the battery light flicking on.
• Ford Focus 1.8 sport - Battery losing power overnight 29 Dec 2010 (Forum)
  Hi. Would anyone what the problem might be here.... My car battery dies if not being used for around 10 hours. If I went out in it just now (8.30pm) for a few miles it will start in the morning. If I dont use it for the day, then the next morning the battery is flat.
• Battery - Diesel or petrol engine? 29 Apr 2005 (Forum)
  My question is: Will I be able to use this battery in my Mum's Fiat Motorhome - 2.0 litre petrol - as the battery in it is dead? The motorhome is due its MOT new week so need to get it sorted over the weekend. thanks in advance. Mart
• 
  What is the expected life span of current batteries used in hybrid cars? 27 Nov 2019 (Ask HJ)
  What is the expected life span of current batteries used in hybrid cars? And what is the cost of a replacement?
• Volvo S60 2.4 Diesel reg 2011 (low mileage) - Dashboard Message " LOW BATTERY ! " 6 Apr 2015 (Forum)
  here is my question If I change the battery will I need a battery saver device to prevent the car ECU/Radio/ALARM etc losing their settings ? note the original  Volvo owners handbook describes how to change the battery and makes NO mention of taking precautions to protect the ECU/ALARM/RADIO settings.
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  Micra battery drain 17 Sep 2014 (Ask HJ)
  I have a problem with battery drain on my Nissan Micra K12 2003 reg. If we use the car every day there are no problems, but if it is left for two or more...
• Ford Escort/MK2 1978 - Battery light glowing 26 Aug 2012 (Forum)
    When I start the engine the battery light glows bright red then just give it a little rev and it goes out and the battery then  tests 14V, so it is charging (battery reads just above 12V with engine off). I have checked, cleaned and tightened all earths to engine and body and  the same with all positive leads to battery, starter motor ect ect, basically everything while I was at it but still no improvement, also the  head lights are more of a reddish glow and not their white bright light  that they are ment to be  but do slightly get brighter when the revs rise but still very dim, wipers slow too.
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  Nissan Primastar engine management light 11 Jan 2011 (Ask HJ)
  My Nissan Primastar has just stopped. The red engine management light is flashing "stop". It will turn over, but won't start. No fault found on computer.
• Volkswagen Beetle (1998 - ) - do I need to disconnect battery whilst charging ? 30 Jan 2009 (Forum)
  Can't say I've ever disconnected the battery from the car before? Presumably this would result in the ECU resetting itself, needing to dig out the code for the radio etc. Is it really necessary to disconnect the battery from the car, or is this just the manufacturer trying to cover their backs?
• C3 Picasso - Battery Change 22 Dec 2022 (Forum)
  The battery is just about managing in this cold weather and is ready for a change. Does anyone know if there anything that's likely to be affected when I do the swap - key codes, radio, etc? I've not had a problem swapping a battery in years but it's always worth an ask!
• Battery Tester 8 Nov 2019 (Forum)
  I need to do a CCA on a battery  would a cheap tester like this  https://www.ebay.co.uk/itm/12V-20-1200-CCA-220AH-Automotive-Load-Battery-Tester-Digital-Analyzer-Bad-C-C4R6/223560922637?
• Mercedes e 320 07 Reg Estate - Changing the battery without losing codes etc 2 Dec 2016 (Forum)
  Can you help guide me to the battery location on my car. And will I need to bridge the battery when changing over? Many thanks
• Battery testing? 10 Feb 2015 (Forum)
  My battery is over 4 years old and I know that it could fail at any time. I don't want this to happen at an inconvenient time. Is it possible to test a battery to predict when it will fail? I know you can test it once it has failed, but can testers predict it before it happens?
• Ford Focus - Battery/advice - which make, where to fit? 10 Dec 2010 (Forum)
  Hi, Think I may be in need of a new battery in my 4-year old Focus 1.8TDCi - what is a good make of battery, and where should I get it fitted - dealer, KwikFit, Halfords, etc?!
• Ford Mondeo III - Silver Calcium Battery Charging 25 Mar 2010 (Forum)
  I need to charge the 12 Volt Silver Calcium Battery on my 2003 Ford Mondeo. Will any car battery charger do (mine is 20 years old) or is there a more appropriate type of charger I should use?
• Battery Change 18 Apr 2007 (Forum)
  Is it possible to change a car battery without the need to re-program radio/alarm etc. If you used say an Airflow Battery Conditioner on the disconnected live and earth cables before disconnection and during, would that be enough to hold the codes for the radio etc, reconnect the leads and then remove the Airflow cables, all codes intact???
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  Why can't I warranty the battery for my car if I only do 1500 miles a year? 24 Jan 2017 (Ask HJ)
  I own a Suzuki Wagon R+ automatic. I am disabled and only drive about 1500 miles a year. Last week I had to call out the RAC because my car wouldn't start....
• FIAT Punto II (1999 - 2006) - Buying a new battery off a big national company 22 Nov 2008 (Forum)
  I was told that it 'will only take fifteen minutes'. The old battery was removed and it became clear very quickly that the Calcium one that I had purchased was larger and would not fit (despite the fitter's efforts) into the battery holder. Clearly this battery is not suitable for the car as advertised on your website.
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  Will charging my PHEV to 100 per cent every day damage the battery? 5 Sep 2022 (Ask HJ)
  I have just taken delivery of my Kia Niro PHEV. I have a wallbox charger and intend to top up the battery each night so I have 100 per cent charge for...
• Civic diesel MK8. - New battery and voltage 7 Aug 2025 (Forum)
  Old battery had died,11.6 V and unable to charge ( 5 years plus old). New battery installed.  At terminals out of the box it read 12.9V and in car with leads attached ( but not switched on ) 12.85V.  Should I be doing a parasitic drain check ?