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What trickle charger do I need to prevent a flat battery?

What type of battery charger do I need for my BMW 218 Tourer? It's not being used much and the flat battery light keeps appearing.

Asked on 7 January 2021 by Ed Mildwater

Answered by Georgia Petrie
A trickle charger would be a good choice if you have mains power you can connect to. Inside a garage is ideal. I'd look at C-TEK's website and see what would work for your vehicle. We reviewed the C-TEK MXS 5.0 here: kit.honestjohn.co.uk/reviews/review-ctek-battery-c.../
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