Hypothetically, what would happen if one were to cross the battery cables when installing a new battery on their jeep (install the postive on the negative and vice versa)? If they saw one or two sparks at the posts when attaching it, and then tried to crank the engine and nothing happened - and then they realized what they did, after the fact.
Ok, I confess, I did this to my motorcycle today, not my Jeep, but since this could happen to a fellow jeeper and since this board has offered up such a wealth of knowledge in helping me fix and diagnose my jeep, maybe yall could help a man out with this general electrical question.
The battery was tested after, full charge still. The bike - DEAD - no lights or anything. The master 30A fuse was still fine, which is strange.
Sorry if this is OT, but it could happen to a jeeper too so maybe it will serve as a lesson to those who stupidly decide to engage in conversations while installing a battery with paying too much attention...