I agree with the last answer - but take off the BLACK (GROUND) wire first. That way there's no chance of causing a short with the spanner while removing the other connection.
Phil Saunders
May 2008
Remove the positive (red) terminal first, followed by the negative (black) one, and tie the wires out of the way. Lift the battery clear and replace it with the same type of new one. Then connect the wires again - red first. No, you won't get a shock!
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