Refine by channel:  Forum (5074)    Ask HJ (1530)    News (283)    productReview (121)    Article (113)    FAQs (7)    Good Garages (4)  

Sort by: Relevance | Newest first | Oldest first

• 
  What could be causing the battery in my Mercedes-Benz V220 to discharge completely? 6 Jul 2013 (Ask HJ)
  I have a 2003 Mercedes-Benz V220 CDi. It has developed some kind of electrical fault that two Mercedes garages have failed to solve. Basically the battery...
• 
  Why does my Alfa Romeo 159's battery keep going flat? 13 Aug 2010 (Ask HJ)
  I have an almost new Alfa Romeo 159 TI. I have no complaints with the car other than a battery problem. There are occasions when I have to attend conferences...
• Volvo S80 battery problem 1 May 2006 (Forum)
  So should i assume that the battery has ran out again in which case i should judt buy a new battery and replace the old one. Or is there likely to be another cause for the car to behave in this way that warants me to have it checked.
• 
  Can you buy battery powered dash cams? 14 Jul 2025 (Ask HJ)
  Are there any dash cams which operate only on battery? Either rechargeable or replaceable? I do not like wires from car power point/cigarette lighter trailing...
• 
  Are PHEVs expensive to run and maintain? 18 Nov 2022 (Ask HJ)
  I haven't seen any discussion on maintenance costs for PHEV. Presumably, it must be quite expensive since you are maintaining an EV plus an ICE?
• KIA Ceed 2011 - The mystery of the resurrected battery... 21 Oct 2019 (Forum)
  I order my new battery online. Change the battery - starts - Great! Let’s take it for a decent run, 40 minutes. On the off chance I try the stereo. It switches on, no bother. So strange... did that initial jump knacker the battery?
• Ford Focus Estate 1.6 petrol 55 reg - battery drain /isolator 15 Feb 2016 (Forum)
  Hi I have had and still have an intermiitent drain on car battery, new battery {bossch s3} fitted only a year ago,daily mileage 28/30 - annual 6-8k  car will be fine for a period of 3 /6 weeks with no problem or 12/48 hours then battery totally flat,but starts first time when jump started. after a 4 or 5 times of this happening and becoming increasingly frustrated i booked the car into a reputable auto electrican who had the car on test for 12 hours but could not detect a drain but then would he ??
• 
  Will fitting a dashcam to an EV reduce the range? 7 May 2025 (Ask HJ)
  We've recently bought a Toyota Bz4x electric car and I'm wondering how much effect on the range running a dash cam will have?
• 
  Why does the stop/start not work on our car? 20 Apr 2025 (Ask HJ)
  This stop/start function on our Honda Jazz 2016 does not operate when when stationary, possibly due to age of battery. Is there any significant difference...
• 
  What's the fuel efficiency of a plug-in hybrid when the battery has run out? 19 Jul 2021 (Ask HJ)
  Is there a rule of thumb about how much less efficient a plug-in hybrid is when the battery runs out compared to a combustion engine equivalent? For example,...
• 
  Why is my car's battery losing charge? 20 Apr 2020 (Ask HJ)
  I have a 2015 Golf 2.0 TDI that has done 35,000 miles and been serviced by Volkswagen since new. I've owned the car for 13 months. I've noticed the battery...
• 
  How much charge will a PHEV battery lose over five years? 10 Jun 2019 (Ask HJ)
  I am thinking of buying a PHEV. I intend to keep the vehicle for five years and I do 15000 miles per year. I am a little concerned at battery deterioration...
• 
  What jump starter should we buy for our minibus? 30 May 2019 (Ask HJ)
  My village charity group operates a Citroen Relay minibus. As a starting backup we would like to purchase a Battery Power Pack for emergency use should...
• 
  My car's start-stop won't work because of a partly discharged battery - would a trickle charger solve the issue? 29 Mar 2018 (Ask HJ)
  My 18 month old Mercedes-Benz E-Class won't automatically stop-start anymore due to a partly discharged battery. It's left in my garage for weeks at a...
• Hyundai ix35 - Battery problems, 3 years old 30 May 2017 (Forum)
  Perhaps the climate control draw was high? 10 minutes at the most, car won't start.   Hyundai dealer have checked the battery and stated that it tests ok, but needs a 'full trickle charge'. The car charging system apparently will only charge it up 'so far'. The battery isn't faulty (and only has a two year warranty anyway - depsite the Hyundai 5 year warrranty)....
• 
  Kia stop/start system? 23 Nov 2015 (Ask HJ)
  I have a 2014 Kia Cee'd 3 1.6 CRDI Eco which I am pleased with on the whole but puzzled by the Stop and Go system which refuses to work when the conditions...
• Mazda 6 - 2l petrol Mazda 6 stalling at junctions 11 Mar 2013 (Forum)
  The car will always start fine whenever this happens and I'm able to pull away without a problem. It started doing this following a flat battery over the Christmas holidays, which I'd recharged. As I've had flat battery issues before, I decided to use this opportunity to replace the battery and a new battery has not solved the stalling problem.
• 
  Breakdown services and battery sales 29 Dec 2011 (Ask HJ)
  Please publish this warning to your readers. Two week's ago, my wife's car failed to start. Being a member of one the largest car breakdown service...
• 
  Lies, damn lies and static tests 23 Jun 2011 (Ask HJ)
  Regarding battery leakdowns, I have a friend who is a modern auto electrician, by which I mean he has all the latest kit code readers, etc., but for a...
• 
  How long are the batteries in my 2006 Toyota Prius likely to last? 10 Oct 2010 (Ask HJ)
  I have a 2006 Toyota Prius with which I have been very pleased. It is approaching four years old, half the guaranteed battery life, and I wondered if you...