Car jumpstart powerpacks

They were all Ford batteries. Maybe that is also relevant?

Maybe. My old Focus is almost 12 years old, and battery failed a few weeks back. A friends is 11 years old and still on original battery.

My CMAX is 7 years old and fine on original (tempting fate there... bet it won't start tonight...)

Darren

In message , D.M.Chapman writes

The Mondeos was about 8 yo I guess

My last car, kept for 9 years, occasionally after a couple of years, wouldn't start on first turn of the key, the starter would stall. Next turn it was ok.

The garage (a small reliable (but not main agent)) said the battery was marginal, but not worth replacing yet.

The starting got slowly worse, and at about 6 years a new battery was got (the old one was described by quickfit as just in spec).

For the previous 2 or 3 years, I'd got through headlamp bulbs with monotonous regularity.

All was fine with the new battery. I'm not sure what the problem was (intermittent high internal resistance??) with the original battery (it wasn't the connections) but I would now replace sooner rathr than later. YMMV.

Very unlucky, I made an out of warranty claim and got my car repaired free when it broke a couple of months out of warranty. Manufacturers rarely use the warranty date as an absolute cut off IME.

You've obviously no experience of my local BMW dealer. Not a coincidence - they went out of business. Which must be a first, given how numerous the cars are.

I have no experience of a BMW dealer and I have no intention of doing so. I think BMW make cr@p cars. BMW do have out of warranty claims procedures though.

Good for you. I'll take as much notice of that as all your other opinions.

So you have had a battery replaced for free outside a 3 year warranty?

I have had several things replaced after the warranty has expired. I have never had a battery fail (yet).