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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... -
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... -
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... -
Are you aware of a new Mercedes-Benz / BMW electric car battery exchange project? 30 Jun 2010 (Ask HJ)
I recently passed a new factory which was not working yet. I asked what it was for and was told it is a new joint venture between Mercedes-Benz and BMW... -
Well soaked 17 Oct 2009 (Ask HJ)
Yesterday I noticed water in the rear passenger foot well of my VW Passat saloon. Year is 1999. I am not sure how it got there and I no nothing about cars... -
Will a PHEV recharge itself when driving? 11 Aug 2021 (Ask HJ)
Do plug-in hybrids recharge the battery whilst moving like standard hybrids? -
Why is the engine in the Nissan Qashqai ePower so big? 20 Oct 2022 (Ask HJ)
Why is the ICE in the Nissan ePower so big, if it is only required to charge the battery? Couldn’t it be much smaller and lighter? -
Why isn't my stop-start working? 19 May 2020 (Ask HJ)
My stop-start engine stopped, as per normal, at a set of traffic lights - but then wouldn't automatically start again. Why's that? -
Should I use a float charger? 16 Apr 2020 (Ask HJ)
I've just heard about battery float chargers, is this another way of saying trickle chargers? I'm looking to buy one for my dad, who owns a BMW 1 Series... -
I'm leaving my car sat on my driveway for nine weeks in winter - should I disconnect the battery? 23 Nov 2017 (Ask HJ)
I'm leaving my 2015 Volkswagen Jetta and Volkswagen Golf on my driveway for nine weeks in winter. Should I disconnect the batteries? -
Battery drain on Fiat 500- what's the cause? 9 Dec 2013 (Ask HJ)
The battery keeps draining on my daughter's FIAT 500 1.2 sport and the local dealership seems unable to pinpoint the problem . We have paid for a full... -
Aircon fan has a mind of its own on my 3 Series 3 Feb 2013 (Ask HJ)
The fan goes on and off for no apparent reason on my BMW 3 Series. The final stage resistor has been changed and when working the fan goes at different... -
Is it common for the tailgate lock on the Volkswagen Touran to malfunction? 5 Feb 2011 (Ask HJ)
I am having trouble with the tailgate on my Volkswagen Touran. Once closed it unlocks and it won't completely lock home again, and you can hear the lock... -
Interested in Toyota Prius but not sure about longevity of battery 9 Jan 2011 (Ask HJ)
With the likehood that increasing worlwide demand for fuel will continue to hike up prices, I am seriously thinking of buying a Toyota Prius. I do, however,... -
Rover 214 1995 engine not starting 4 Jan 2011 (Ask HJ)
The battery went flat on my Rover so i removed it and charged it up. When putting the battery back in and connecting this up the engine would not start.... -
Is there a fault with my Ford Fiesta's starter motor? 23 Jun 2010 (Ask HJ)
I am having trouble with my diesel Ford Fiesta 1.7 TD's starter motor. If I stop and start a lot, the motor takes a lot of time turning over and on a couple...
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