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Is it safe to connect a battery to a 'smart' mains charger all winter?

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Is it safe for a battery to be permanently connected to a mains charger?

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Putting my SLK in storage for winter

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How can I prep my car for winter storage?

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Advice on long-term storage of automatic car.

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How often should I service my BMW 320i?

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Changing a battery on a 3 Series - Do I have to use an approved battery?

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Fuel gauge fault on Polo

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