Showing results in  Ask HJ [Show all channels]

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  What stop/start battery do you recommend? 11 Aug 2023 (Ask HJ)
  What stop start battery would you recommend for my Skoda Octavis vRS? Prices seem hugely variable, as do warranties. How do I choose?
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  Battery operators 9 Oct 2011 (Ask HJ)
  I recently called a well-known breakdown assistance service for help. My car had been left with lights on which had flattened the battery. The patrolman...
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  Should I buy a lead acid or calcium battery? 25 Sep 2018 (Ask HJ)
  I have a 1999 Morgan +4. Should I buy a lead acid or a calcium battery? My last battery was a Halfords lead acid and lasted seven years.
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  What is the lifespan of hybrid batteries? 19 Jun 2023 (Ask HJ)
  While there has been considerable research on the life of full EV batteries, I wondered if you have any advice on battery life in hybrid cars. I am looking...
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  Will my Jeep Cherokee's alarm sound if I disconnect the battery and reconnect it later? 30 Jul 2010 (Ask HJ)
  I have a 2002 4.0L Grand Cherokee. I work offshore and each time I come home my battery is flat. Until now there has been some life in the battery but...
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  How do I reactivate my car key after changing the battery? 30 Jul 2018 (Ask HJ)
  I changed the battery in my car key fob. How do I reactivate it now?
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  Can I use a trickle charger without disconnecting the battery 18 Oct 2012 (Ask HJ)
  My Porsche 944 S2 Driver's Manual states: "Prior to charging the battery with a 'Quick Charger', disconnect the battery to prevent destruction of the alternator"....
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  What battery charger should I buy? 29 Apr 2020 (Ask HJ)
  What is the correct type of battery charger to use for a Ford B-Max petrol engine with stop-start system?
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  Do I need to charge my stop-start car's battery in AGM mode? 2 May 2020 (Ask HJ)
  I have a stop-start car and a CTEK trickle charger. The charger seems, when it is switched on, to auto select battery mode. But, being stop-start, does...
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  Garaging a car for winter - should I disconnect the battery? 8 Oct 2014 (Ask HJ)
  I own a 1995 Honda Civic, which doesn’t get used all that much. To keep the battery charged, I it out every other week, but I am now thinking of disconnecting...
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  Does charging an iPhone or playing music on it drain a car battery? 29 Jul 2019 (Ask HJ)
  Does charging an iPhone or playing music on it drain a car battery?
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  What battery should I use in my Triumph Spitfire? 21 Apr 2017 (Ask HJ)
  I have a classic but every (fairish) day use Triumph Spitfire. The battery deteriorates in reliability if left unused for a while. Should I get a standard...
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  Battery charging advice 12 Apr 2012 (Ask HJ)
  Please can you advise me if it will be okay to charge my engine battery on my Ford Transit 2.2 autoroller 200 motorhome using a 12 volt trickle battery...
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  What is the battery degradation in PHEVs? 11 Aug 2023 (Ask HJ)
  I am considering purchasing a new Lexus NX 450+ which I expect to keep for several years. If I maximise the use of the PHEV battery, it occurs to me...
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  What is the long term battery life on a BMW i3? 31 Oct 2018 (Ask HJ)
  Is there any information available yet regarding the degradation or actual battery life of the BMW i3? I drive the 94Ah range extender on a (66) plate....
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  What is the battery life for cars with a stop/start function? 19 Jul 2023 (Ask HJ)
  I have a SEAT Leon, the engine stops at traffic lights etc and restarts automatically when you are free to go. Recently the car does not restart and a...
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  Electric vehicle battery warranty 30 Sep 2016 (Ask HJ)
  I recently bought a Peugot Ion electric vehicle, 3 years old but with very low mileage. I am generally delighted with the car but disappointed with the...
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  How much does it cost to replace a hybrid battery? 1 Feb 2024 (Ask HJ)
  What is the cost to replace a hybrid battery?
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  S-Type battery warning light stuck on 11 Feb 2015 (Ask HJ)
  My 2004 Jaguar S-Type diesel has a battery warning light on all the time on the dash. I've fitted a new battery, but the light hasn't gone off. Any ideas?
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  Do I need to worry about this new battery? 8 Feb 2014 (Ask HJ)
  Recently I've not been using my car very much. I last used it on Sunday and all was fine, but on Tuesday I went to move it and the battery seemed flat...