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Seat quote £199 for new battery for cars with stop/start, wonder if that would be AGM?
Yes, if your car had EFB from factory it would be, but i'm sure the diesel models have AGM batteries as standard from factory.They couldn't tell me - but i assume it was EFB - which isn't a bad thing.
Thinking about it, maybe it does run better with the new battery as the alternator might not be working as hard as it did with the old battery.@Walone Not sure - but sound about right.
On the upside, since changing the car battery, the car actually runs better. probably sparking better. its wierd. i got so used to it running the other way!