After several weeks of occasional short journeys during which the stop/start function didn’t, today I took the car out for the best part of an hour up and down the local bypass, as well as visits to 2 local towns. The battery still isn’t sufficiently charged for the stop/start to operate. I’m not bothered by the lack of the feature, I usually turn it off, but I don’t want to be shelling out for a new battery, which is at least £250. How much does it take to get it back up and running?
AGM Battery charging
- Thread starter rafletcher
- Start date
Why don’t you spend some money on a trickle charger like a CTEK MXS-5.0. Deals with normal and AGM batteries
Or £24 on a maypole charger that does exactly the same as a CTEK.?
And keep your AGM battery in perfect condition.
And keep your AGM battery in perfect condition.
- Joined
- Jan 7, 2017
- Messages
- 362
- Reaction score
- 417
- Points
- 63
I'm not sure I'd worry about it over much provided you're not getting any low battery warnings and it fires up okay, especially as you don't use the start/stop feature anyway.
The start/stop in my car - a three and a half year-old 2.0 TFSI 190 - has hardly ever worked unless I've driven well over a hundred miles, yet in all that time I've only ever had one low battery warning, and it's never once failed to burst into life. There's nothing wrong with the start/stop; it's just that there isn't enough juice in the battery for it to work most of the time.
Am I bothered?
Nope.
Start/stop is a pain in the rectum anyway.
And this battery is one of those Moll EFB jobs which are spoken of so very highly on here, so it isn't even a decent AGM.
I do hook it up to a CTEK from time to time when I remember, but it never takes more than two or three hours to light up fully-charged.
It may well be that I'm constantly walking the tightrope of being stuck in the middle of nowhere with nothing but the dull click of a starter solenoid for company, but like all adrenaline junkies I live my life right on the ragged edge.
.
The start/stop in my car - a three and a half year-old 2.0 TFSI 190 - has hardly ever worked unless I've driven well over a hundred miles, yet in all that time I've only ever had one low battery warning, and it's never once failed to burst into life. There's nothing wrong with the start/stop; it's just that there isn't enough juice in the battery for it to work most of the time.
Am I bothered?
Nope.
Start/stop is a pain in the rectum anyway.
And this battery is one of those Moll EFB jobs which are spoken of so very highly on here, so it isn't even a decent AGM.
I do hook it up to a CTEK from time to time when I remember, but it never takes more than two or three hours to light up fully-charged.
It may well be that I'm constantly walking the tightrope of being stuck in the middle of nowhere with nothing but the dull click of a starter solenoid for company, but like all adrenaline junkies I live my life right on the ragged edge.
.
Last edited:
I'd like to know the best route forward for when the battery fails as I'm led to believe with stop-start technolgy they do not last so long.
Is it best to buy a good quality battery and take it to your local indi garage who you pay to install as the ecu needs to be told a new battery has been fitted. If so what are the typical costs.
Colin
Is it best to buy a good quality battery and take it to your local indi garage who you pay to install as the ecu needs to be told a new battery has been fitted. If so what are the typical costs.
Colin
I do have a “smart” charger as it happens, but it’s a pain to use it because of parking where I live.
A secondary question, as it’s been sooooo long since I charged a battery - where should I hook the charger up to?
A secondary question, as it’s been sooooo long since I charged a battery - where should I hook the charger up to?
Ah that old chestnut.
Earth it first to the chassis or strut top, then to positive terminal on battery.
Ta. I would have checked the handbook, except the dealer - who was most particular my trade-in had all its paperwork - appears to have lost mine, and being closed since a week after I got the car I’ve not had much luck in getting a set.
I've a digital copy of the owners manual. I cannot remember how I got it as Audi do not make available digitally. As it is over 2mb I cannot attach it to a post. If you PM me your e-mail I can send it to you.
Colin
Colin
- Joined
- Jan 7, 2017
- Messages
- 362
- Reaction score
- 417
- Points
- 63
Other way round.
Connect the positive terminal first. When you're done, disconnect the negative (the bulkhead/chassis tab in this case) first.
Same as when connecting the battery to (or disconnecting the battery from) the car.
It's not quite as important when you're hooking up a charger - assuming it's off at the mains when you do - but there's much less chance of a spark from an accidental short to ground this way.
.
Last edited:
But you cannot download/save it. You need internet access when you want to read it.
Colin
- Joined
- Oct 7, 2017
- Messages
- 386
- Reaction score
- 165
- Points
- 43
