Noting will happen when you turn on the flashlight without battery.
If you are careful and do not let the positive cable to the alternator come in contact with the motor or frame, nothing will happen. It is just a lot easier and safer to disconnect the positive cable from the battery. It saves possibly shorting out the cable and possible ruining the battery.
replace the alternator
Either your battery is dead or starter is shot.
The engine will stop running. This is not an interference engine so there will be no engine damage. Just replace the belt.
Apart from a chance that the battery may get knocked out of place and make the PSP switch off, nothing special will happen. The cover is there to keep the battery in place - if it's not there, the battery may get dislodged.
If you do not dissconnect the battery, you will blow the main fuse usaly located in the engine compartmet.
Providing the voltages are the same and the amperage is sufficient they are interchangeable.
Nothing will happen. Unless the battery runs down it should be fine.
Engine Failure to Run if Battery is "Dead"Yes, a dead battery can not provide adequate electrical power to the ignition system and thus the engine cannot continue to run. Depending on the vehicle and electrical system, this can happen, even if the battery is not dead, but only to "low."
Check the battery and connections
No. If you have enough power for the engine to crank then it has enough power to run the other systems. ALSO..i've started a car with a good battery and replaced it with "unknown battery" and it has stalled the motor. Starter and everything was good. Technically, even if the battery is dead and all other systems are normal this shouldn't happen. Go figure.