How long should a 12v Car Battey last?

[norseman]

That is what I always do. Not only does that give you extra capacity, but for normal starting, each start will tax a larger battery less than it would a smaller one. The less the battery is taxed, in normal use, the longer it will last.

Ditto, 95AH vs the standard 70AH
The car isn't used daily & a fair percentage of it's annual mileage is short journeys, so every couple of months it has 24hrs on a battery charger.

 

[norseman]

Check for prices on Tayna website.
When I bought mine for the A6 I found it half price compared to Halfords

Car Batteries - Motorcycle Batteries - Leisure Batteries - Cheap Prices!

Tayna Batteries offer batteries for all applications at cheap prices. We specialise in Car Batteries, Leisure Batteries, Motorcycle Batteries and Mobility Batteries. With the UK's widest range of famous brands and next day delivery we cannot be beaten.

www.tayna.co.uk

The only problem with buying on-line is in the event of battery failure within the warranty period the supplier may well want it back for testing before sending the buyer a replacement.

Given that the carriage costs are likely going to be down to you a large battery is going to be pricey due to it's weight.

 

[Benny5]

Checked a couple of local independent Garages today and both have the programming procedure to re-code the system. So I am using one of those, prefer to support local traders, and their costs are less than Halfords.

Thanks to everyone that has made a contribution.

 

[carmanmemoranda]

Is your car regularly serviced at a main dealer (or an independent specialist)? Ask them for a replacement battery price as the car needs 'coding' to a replacement battery.
My other suggestion is have the largest capacity battery fitted that will fit in the battery tray.

My best suggestion is to stick with the battery type specified. Altering things on a smart charge system is just asking for trouble

 

[securespark]

One of the best batteries I ever bought was from Tayna.
It was a Bosch S6 Stop/ Start battery (our car wasn't S/ S) but it lasted 12 or 13 years (can't remember exactly) and around 165,000 miles.

 

[Harry Bloomfield]

One of the best batteries I ever bought was from Tayna.

Tanya, is not what it was, I understand the company has been taken over - setting new rules. They used to supply disabled use batteries, VAT free, with a signed declaration - not now.

 

[norseman]

Tanya, is not what it was, I understand the company has been taken over - setting new rules. They used to supply disabled use batteries, VAT free, with a signed declaration - not now.

Disabled use ?
Just curious.

 

[Stivino]

Disabled use ?
Just curious.

These
I found this

 

[norseman]

These
I found this

'Ah yes of course, silly me I should have twigged it straight away having worked in adult care!

There was me thinking 'why would anyone sell a battery that's been disabled?'
No fun getting old.

 

[robinbanks]

I expect they will have the expertise

Snort

In older VWAG cars the "coding" procedure simply amounts to changing the battery serial number registered in the ECU/BMS so that it resets its adaptations to consider your battery as new

If your car has stop/start ensure that your new battery's compatible with it as they are engineered differently, to withstand the greater level of punishment. Cars with smart charging systems may also use batteries with altered chemistry and slightly different voltages.

 

[Jurassicspark]

If the OP regularly drives his/her car then the battery will last for a few days.

I’ve been told that the battery should be replaced every four years, or so.

The problem with these old, used-till-they-die batteries is that not by driving the car for a few days, will have a very high chance of the car not starting, followed by a yell from your manager.

Solution: buy a new batttery.

Batteries do not depreciate, nor appreciate, nor get sold at a buy-one get-one-free-type, so no point waiting and waiting.

You probably know what I mean by now…

 

[Benny5]

Just to finalise this thread, I’ve already had a replacement fitted.
Thanks to all contributors.