In a car battery you will only loose the presets on the radio and the time on the clock. Other than that you will loss nothing. The ECU memory will not be lost.
Remove the cables from the battery posts. Remove the battery retaining wedges. This can be accomplished by turning the screws to the left. The battery will come loose. Lift the battery out.
On a laptop computer? Not if the data has been saved and the computer has been properly switched off before the battery is removed.
Corroded or loose battery connections, loose alternator drive belt, defective alternator, or dead cell in the battery.
You lose all the Data and Applications on the PDA
1. Take the negative cable end loose first, then the positive (red ) side. 2. Remove the hold down. 3. Lift the cover off. 4. Remove the battery. When installing the new battery put the positive post on first.
I would suspect the battery has been discharged, is defective, or you have loose or corroded battery terminals. Remove and clean the terminals and if that does not solve the problem charge the battery with a battery charger. If it will not take a charge then replace the battery.
How to remove battery cover to replace battery
Remove - battery cable Remove + battery cable Remove hold-down bolt on front bottom of battery tray Remove battery
Remove the terminals, 10mm socket works best, Channel-lock pliers will do as well. At the base of the battery, there is a plastic retainer that secures the battery to the tray. Simply pry it loose with the head of the pliers, slide the battery toward the fender and lift it out.
No, the alternator will not charge the battery with the negative terminal loose.
Certainly, a loose wire on the car battery can cause the car not to start.
No. A loose battery connector will cause problems drawing power from the battery to start the vehicle, and it may present a bit of a problem charging it (but that is not likely because the charging current is low compared to the starting current). If you have a loose connector and the battery goes dead, clean and tighten your battery terminals and start making some checks. The loose connector will not cause your battery to go dead.