Refine by channel:  Forum (5074)    Ask HJ (1529)    News (283)    productReview (121)    Article (113)    FAQs (7)    Good Garages (4)  

Sort by: Relevance | Newest first | Oldest first

• 
  Why is the RAC charging so much for replacement batteries? 11 Oct 2012 (Ask HJ)
  I phoned the RAC for a quote this morning for a battery for my 2008 BMW 520D Sports Touring. A very pleasant and helpful young lady called Tracy quoted...
• battery life 18 Jan 2024 (Forum)
  Is it best to keep a battery on smart charge when the car is not in use to prolong the life, or is it better to just use the vehicle  and cycle the normal charge/run down process? In other words, do lead-acid batteries benefit from being worked?
• how to open 306 bonnet from outside. Battery dead 27 Jun 2013 (Forum)
  Battery dead, cant access car with keys (dont fit locks) is it possible to access the bonnet from outside the car in order to charge battery ?!
• Batteries....another discussion. 1 Oct 2007 (Forum)
  Why is it batteries have never advanced from the lead acid principle when smaller batteries used in the electronic gadgetry have advanced leaps and bounds. They seem to stuck in time!!. And there is bound to a knowledgeable backroomer to shed light on this one.
• 
  Does my car battery need replacing? 12 Feb 2025 (Ask HJ)
  I have a 2016 Mercedes E220 Bluetec. The battery seems to be depleting quickly during cold weather. I have already charged it twice with portable charger...
• 
  What is the battery life like on a mild hybrid? 13 Dec 2023 (Ask HJ)
  I am thinking of purchasing a 3 year old Suzuki with mild hybrid but am concerned on the life / replacement cost of the hybrid battery etc. I believe Suzuki...
• 
  Do I need to disconnect a car battery before charging it? 4 Jun 2021 (Ask HJ)
  You've previously advised readers to disconnect batteries before charging them, in order to avoid damage to the electrics. However, I have, on a number...
• 
  What is the long term life of EV batteries? 1 Oct 2019 (Ask HJ)
  I am selling my Audi A4 Allroad 3.0 TDI and am trying to decide upon either a hybrid or EV. Is there any data available on the rate of decline in performance...
• 
  Does an the alternator only keeps a battery to its existing charge level? 5 Jun 2017 (Ask HJ)
  I read a recent reply of yours to a Honda CR-V owner whose stop/start isn't working, where you advised a new battery. We recently bought a 2013 CR-V with...
• 
  I was misled about the mpg and battery range on my BMW hybrid - how should I proceed? 16 May 2017 (Ask HJ)
  BMW quote up to 148mpg, battery mileage up to 25 miles for my BMW 330e. I can only attain 58 mpg and battery range between 6.8 and 12 miles. I feel I have...
• 
  Why won't my BMW 320i start? 7 Nov 2016 (Ask HJ)
  I have had a BMW 320i for about three months and during this time it has developed an intermittent starting fault. Basically, about every fourth time I...
• Dacia Duster - Battery charger 20 Dec 2024 (Forum)
  Hi all, I have a small compact charger that I connect to the car battery during wintery conditions to keep the fairly new battery "topped up" the unit is not designed to charge a flat battery & I've used it a lot in Winter. What I'm going to do this winter is connect the charger to the battery as normal, the unit would then be plugged into a waterproof socket outside the garage.
• Battery dies as soon as ignition is turned off 16 Mar 2024 (Forum)
    I parked out side the house went in for about 10 mins went back into car and it was as if there was no battery in the car there was nothing  no dashboard lights , no clicking ,the remote locking didn't work the battery was totally flat.  I put a charger on the battery the car started and I drove off.
• Honda CRZ - Is it easy to change a battery 20 Feb 2019 (Forum)
  It’s 7 years old. I use the car once a werk. Is there much difference between batteries available online? Soem crz owners have mentioned Yasusa brand? Is it easy to swap in a new battery without messing up things like radio codes, alarms? Or is it best left to the dealer? Does the car remember it’s mileage when you change the battery?
• CHRYSLER VOYAGER - FLAT BATTERY 15 Jan 2019 (Forum)
  I'm on my second Voyager a 2008 model with low mileage. And now this one is getting the same fault -- A FLAT BATTERY. On the previous one I installed a "Battery Isolater" this is a device that you fit to end of your POSITIVE lead and then connect to the battery. It has a curled screw which you remove when parking up for the night and replace the next time you want to use the car.
• Toyota Prius & Hybrids - Replacing batteries on electric / hybrid vehicles 1 Aug 2014 (Forum)
  In 2012 I attended a presentation at Imperial College about Electric vehicles including the Tesla. The presenters told us that the batteries were likely to degrade after c.3years and buying or selling a second hand electric vehicle was therefore a bit problematic because the battery replacement costs were very significant.   They also told us that there is currently no technology for stripping down these used vehicle batteries to recover the valuable components or metals inside for re-use and that the only thing they could do with these used batteries was to offer them to hospitals or other organisations as stand-by power supplies for emergency use.
• Ford Transit - remote battery going flat, help replacing battery 18 May 2011 (Forum)
  i have a 3 button remote for my '04 transit like ebay Item number: 170629993557 but my images on the buttons are quite worn i have to get closer and closer to the van to use the remote central locking. i guess i need a new battery. does anyone know what battery i need and are there any specific fitting instructions? do i have to be able to do it in less than 0.0005 of a second not to loose the code.
• Ford Galaxy (1995 - 2006) - 02 1.9TDi - What battery to buy ? 31 Dec 2009 (Forum)
  Hi I have 2002 Galaxy 1.9 TDi 115hp turbo diesel. The original battery has been changed to again Ford battery, but from Focus 1.8 petrol. I haven't driven the Galaxy since August 08 and the battery was totally flat. I'm charging it now, but not sure it will recover.
• Vauxhall Cavalier (1988 - 1995) - 95 2.0 Jump starting car -why -VE connections this 6 Aug 2008 (Forum)
  When jump starting a car from a booster battery why do they say you should connect the -VE of booster battery to car engine block/bolt (away from battery) & NOT to the -VE of the car battery ?? Yesterday my battery was flat, tried connecting -VE of booster to engine block, would not start, probably not good enough connection.
• Unable to charge flat battery 30 Jul 2007 (Forum)
  Home Breakdown called out - attended with boost battery pack and got vehicle started. So, you knowledgeable lot - why couldn't I get juice into battery? dvd {slight amendment to header - DD}