I have read, and followed the advice, that when you hook up a charger to the engine battery, you should connect the negative cable to something connected to the chassis. However, with this motor home I have a very small access door to the engine compartment that my head won't fit through to let me see some possible connection points. Will it truly hurt anything to connect to the negative post on the battery?2018 Coachmen Mirada.

People have been charging batterie's for yr's by hooking the charger to positive and negative post's since they made batterie's, at least I have with no problem's, too many people worried about causing a spark, Just my thought's.

Connect charger leads first then plug in. No problem

garry1p wrote:Connect charger leads first then plug in. No problemThat's the way I always do it.Thanks

The reason for connecting the negative lead on a frame component etc is in case of a spark it is not near the battery which can cause an explosion.

x2 I,ve seen batteries explode in a test room ,ain,t pretty ,all that stuff blows up in your face ,

Battery charger - connect negative to chassis | Good Sam Community

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