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#21200
legendre
Participant
    quote Mumbles:

    quote mgsolakis:

    Won’t it spark like crazy without a solenoid?

    A little bit. Jump it at the battery to avoid a chance of fire.

    Err.. the hydrogen gas produced in a lead-acid battery is definitely an explosion hazard.

    The drill when jump-starting a vehicle goes like: Bat Red #1 -> Bat Red #2 then Bat Blk #1 -> Engine block / alternator bracket #2, in that exact order. This ensures that any arcing occurs at the block / bracket, and away from either of the batteries.