I have lawn mower. But the battery is low on my snapper lawn mower. I am planning to charge my lawn mower battery through car alternator. I want to connect cables to my car battery and the other end of lawn mower to charge it. Can I charge my lawn mower in this way? What all I need to check before doing so? How can I charge 12 volt lawn mower battery with car alternator? I would really appreciate if someone can help at the earliest. Thanks.