DaveG1975 Posted June 30, 2020 Share Posted June 30, 2020 Just had a new battery fitter at the weekend and I’ve noticed that the alternator charge has dropped from 14.6 volts to 13.3 volts is that normal with having a new battery with plenty of charge in Quote Link to comment Share on other sites More sharing options...
Wino Posted June 30, 2020 Share Posted June 30, 2020 I hope so mine read the same 14.6 when it was replaced. I'm finding it generally has a high of 12.9 after a run and a low of 11.6 if its been stood for 5 days. New battery been on approx 2 months now. 1 Quote Link to comment Share on other sites More sharing options...
DaveG1975 Posted June 30, 2020 Author Share Posted June 30, 2020 What’s your alternator changing at when it’s running mine was at 12.3v when the engine was running tonight and it was 14.6 when it was first replaced on Saturday Quote Link to comment Share on other sites More sharing options...
Midgeman Posted June 30, 2020 Share Posted June 30, 2020 2 hours ago, DaveG1975 said: Just had a new battery fitter at the weekend and I’ve noticed that the alternator charge has dropped from 14.6 volts to 13.3 volts is that normal with having a new battery with plenty of charge in NEW battery ON A YEAR OLD CAR WHY 1 Quote Link to comment Share on other sites More sharing options...
DaveG1975 Posted June 30, 2020 Author Share Posted June 30, 2020 It was knackered had AA out to it wast holding charge Quote Link to comment Share on other sites More sharing options...
Tizer Posted June 30, 2020 Share Posted June 30, 2020 4 hours ago, DaveG1975 said: Just had a new battery fitter at the weekend and I’ve noticed that the alternator charge has dropped from 14.6 volts to 13.3 volts is that normal with having a new battery with plenty of charge in I haven't changed my battery but it mostly charges at 14.6 to 14.8 Volts although it sometimes charges at low voltage/high current (13.5 Volts) or high voltage/low current (14.9 Volts). I have never seen it as low as 12.3. The smart charging system on these cars has different charging modes as per this screenshot. It usually starts on conventional but sometimes it can change to one of the other modes during any journey. It is when it is charging on one of the non conventional modes that the voltage can be different Quote Link to comment Share on other sites More sharing options...
Wino Posted July 1, 2020 Share Posted July 1, 2020 22 hours ago, DaveG1975 said: What’s your alternator changing at when it’s running mine was at 12.3v when the engine was running tonight and it was 14.6 when it was first replaced on Saturday When the car is running its at 14.6. Today it was at 11.9 ( its been stood since last Friday/ 5 days) Been for a trip to BnQ 35 mile round trip and throughout the journey it was registering 14.6. Back home and its was registering 12.9 once it was switched off. Hope this helps. Quote Link to comment Share on other sites More sharing options...
DaveG1975 Posted July 1, 2020 Author Share Posted July 1, 2020 Yeah it does started mine this morning it was at 14.6 then after 20 minutes drive it went down to 13.3 do you leave yours plugged into cigarette lighter all the time? Quote Link to comment Share on other sites More sharing options...
Wino Posted July 1, 2020 Share Posted July 1, 2020 42 minutes ago, DaveG1975 said: Yeah it does started mine this morning it was at 14.6 then after 20 minutes drive it went down to 13.3 do you leave yours plugged into cigarette lighter all the time? Thats exactly what mine read at the start. 14.6 when new battery was swapped. I then took it around the block after 10 mins of idling so the electric system had time to reset and it showed 13.3 when switched off. No. I unplug it after ive switched the car off. It fits into to top of the arm rest when car is not in use. Ive got into a routine of taking a mental note of what it was when switched off. Quote Link to comment Share on other sites More sharing options...
DaveG1975 Posted July 1, 2020 Author Share Posted July 1, 2020 Ok cheers for the help hopefully that’s mine sorted for a few years now I’ve nothing but problems with battery not holding charge since I bought the car and the dealership said there was nothing wrong with I still turn the stop start of when I’m doing short journeys Quote Link to comment Share on other sites More sharing options...
Wino Posted July 1, 2020 Share Posted July 1, 2020 15 minutes ago, DaveG1975 said: Ok cheers for the help hopefully that’s mine sorted for a few years now I’ve nothing but problems with battery not holding charge since I bought the car and the dealership said there was nothing wrong with I still turn the stop start of when I’m doing short journeys No probs. Yeah I turn mine off too. Never has any issues with the Mk3 stop start or battery. Sometimes I wish I hadnt changed. Quote Link to comment Share on other sites More sharing options...
Phil3747 Posted July 2, 2020 Share Posted July 2, 2020 Yep, same here, I hate stop/start and also turn it off straight away. My niece has a Renault Megane with stop/start and the battery failed on it 3 weeks out of it's warranty and Renault wouldn't pay for a new one, so it cost her £128 for a replacement whereas standard batteries are usually around the £40-£50 mark. Granted I don't travel in heavy traffic a lot so reckon it doesn't cost me an extra tenner a year in fuel by not using the stop/start, and this pales into insignificance compared to the cost of a new battery and/or starter motor...no brainer !! Quote Link to comment Share on other sites More sharing options...
Lenny Posted July 2, 2020 Share Posted July 2, 2020 On 6/30/2020 at 8:43 PM, Midgeman said: NEW BATTERY ON A YEAR OLD CAR WHY On 6/30/2020 at 9:27 PM, DaveG1975 said: It was knackered had AA out to it wast holding charge +1 Ford batteries are hit and miss some dont last long atall, Personally I prefer the Bosch S5 range; my 1.6TDCi has a Bosch S5 007 I run alot of accessories which the Bosch is well capable for too. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Ford UK Shop
Sponsored Ad
Name: eBay
Ford Model: FordUK Shop
Ford Year: 2024
Latest Deals
Ford UK Shop for genuine Ford parts & accessoriesDisclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.