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This can do it more harm than good,in five minutes it'll still be recovering from starting a VERY cold diesel engine andd won't even have started chraging properly.Leaving it ticking over on the driveway is also bad for it a cold engine shouldn't be left to idle,also a cold battery will never be able to take a full charge.
The only ways are either at least a half hour drive or as above take the battery into a nice warm house and hook it up to a smart charger such as Optimate.
Chris.
