Battery maintenance on used cars?

I am going away for 3 months. My CR-Z will be indoors and my BMW outdoors. I am receiving conflicting advice - never use a trickle charger on the CR-Z. Should I disconnect the negative lead or use a trickle charger? Nobody has any information on the battery and its capacity etc.

I can just disconnect the negative lead on the BMW. If I want to use both cars on my return how do I make certain the charge is maintained on both cars, bearing in mind that one is to kept outdoors?

Asked on 17 January 2013 by toadalex

Answered by Honest John

I would not leave a CR-Z hybrid on trickle. So put the BMW in the garage and leave that on trickle.

Tags: technical issues owning storing cars

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