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Why do I need to disconnect the battery when using my new trickle charger? 5 Oct 2013 (Ask HJ)
The instructions that came with the 6/12v 740/4355 automatic battery charger I bought from Argos yesterday say “disconnect the battery from the vehicle... -
Battery goes flat if the key is left in 10 Sep 2012 (Ask HJ)
why does the battery go flat if the key is left in the ignition even though the switch is in the off position? -
Clio won't start - do I need a new battery? 17 Dec 2014 (Ask HJ)
My Renault Clio (2009) will not start. It will jump-start with cables, though, but does not retain its charge. It is absolutely dead, so much so that I... -
How can I keep my battery in good condition whilst my Renault Laguna is in storage? 24 Mar 2012 (Ask HJ)
We have a Renault Laguna Initial Estate that we have had from new. It’s now six years old. The last two winters in the Highlands have been very severe.... -
What's the best battery charger? 9 Jan 2020 (Ask HJ)
What is the best battery charger for a Honda Civic Tourer 1.8 petrol about four years old? My max budget is up to £100, however would prefer to source... -
What happens if I don't charge a plug-in hybrid? 12 Feb 2025 (Ask HJ)
I'm thinking of a 1.4 plug-in hybrid Skoda Superb. What happens if I don't keep the battery topped up? -
Battery drains very quickly 19 Feb 2013 (Ask HJ)
For 2 years now, the battery has drained over the weekend, garages have said need a new battery. Still doing it despite battery only a year old. RAC... -
Should I plug my Honda Accord's battery into a charger on a time switch to give it a two-hour daily charge? 21 May 2011 (Ask HJ)
I recently had to change the battery on my five-year-old Honda Accord because I only use the car for holidays and long journeys. We use a Jazz day-to-day.... -
Battery free of charge 12 Jun 2010 (Ask HJ)
I’d like your opinion on my complaint to FIAT Group Automobiles UK Ltd. I bought a £35,000 FIAT based motorhome last year and after 1,700 miles the battery... -
Low battery warning problem, what can I do? 7 Jul 2022 (Ask HJ)
When I collected my new lease car last October the salesman told me not to leave the doors or boot open as it would trigger the low battery warning. I... -
Do you know where I could have an independent diagnostic battery performance check done on my Renault Zoe? 27 Dec 2017 (Ask HJ)
I have owned an electric Renault Zoe for three years new from Dec 2014. Recently the car had a 3 years service and MOT at AC and I asked for the traction... -
Does a manufacturer's warranty include battery cover? 25 Oct 2016 (Ask HJ)
My Nissan Qashqai is now 18 months old. Will the manufacturer's warranty cover me if the battery needs replacing? -
How do we keep our hybrid in good condition during self isolation? 27 Mar 2020 (Ask HJ)
Looks like our Toyota Auris hybrid could be sitting on the drive for a few weeks now. Can I connect a normal trickle charger to the 12v battery? What about... -
Will a battery booster device really work? 3 Dec 2012 (Ask HJ)
I have seen advertised in a newspaper, a device you plug into a cars 12v point (ciggy Lighter) when charged you remove the device and if you have a flat... -
Will the battery on my Qashqai e-Power go flat if left for two weeks? 12 Mar 2025 (Ask HJ)
I have a Nissan Qashqai e-Power. Can I leave my car at the airport for 2 weeks without the the battery been drained? -
How long will the battery last on a used EV? 21 May 2019 (Ask HJ)
Buying a second-hand electric car seems to be tricky. How do you know how long the battery will last? What other things would need looking at? -
Why does the battery in my car go flat after a week if I don't drive it? 24 Oct 2017 (Ask HJ)
The battery in my Peugeot 308CC was draining frequently, especially in cold weather. I replaced the battery seven months ago but it still goes flat after... -
I won't be using my hybrid for two months - what should I do to avoid battery drain? 14 Aug 2017 (Ask HJ)
I'm the happy owner of a 2013 Toyota Prius. I'm leaving the UK for two months in winter and wonder what actions you recommend I take with leaving the car... -
Battery life 23 Jun 2015 (Ask HJ)
How long do you think the battery on a Mercedes C-Class should last? I've just had to have a second new one fitted (3 months outside warranty) Each one... -
Could a cheap second-hand EV ever exist given the limited battery pack life? 20 May 2019 (Ask HJ)
My most recent purchase was a three-year-old Skoda which cost just under £7000. I'd love to replace it at some point with an EV but I don't see how the...
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