Do you do a lot of short trips? Back in the 80's my dad had an issue with the battery not getting fully charged. We lived less than a mile from where he worked, so he would start the car, drive a short few minutes to work, then shut it down, then start it up again, drive it another few short minutes to work and shut down again. The grocery store and the library were also very close. After he started having problems, he used to take the car out for a longer drive once a week or so and all was good.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 401,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 26,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.
99 Mazda Miata 183,xxx miles.