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In almost all cases the answers NO. All chargers have a safety cut off, where the battery is fully charged, or the amps are the same in the battery as the charger, the charger wil shut off to prevent over-charging and damage to your battery.
touching the 2 ends ( + & - terminals) together will simply give you a pretty spark, and reset the charger. depending on wot kind of charger u have, it may take time to reset automatically, or u may have to push a "reset" button, worst case is u may have to open the charger and replace the fuse inside.....
What else can I help you with?
How can i charge my car battery from home using a laptop charger?
Sorry, but that is not likely to work. Both the voltage and amperage provided by a charger for a laptop battery will not be correct for a car battery. It is likely that you will damage the charger.
Can you use any car battery charger to charge a battery from an automatic car?
As long as both batteries are the same voltage, you can jump start with the battery. If you want to charge the battery then use a battery charger.
What do you charge a lawn mower battery?
Not sure if the question is what to charge the battery with or how to charge the battery. So, I will address both: A regular battery charger can be used. IF you are going to purchase one, you really don't need a top-of-the-line, expensive charger. A simple 2 to 6 amp slow-trickle charger will do the job. To charge the battery, connect the red charger cable to the positive battery post and the black charger cable to the negative battery post, then turn on the charger until the battery is charged. If necessary, clean the battery posts and cables before charging. The battery charger will have more complete details for charging the battery.
Can a motorcycle battery charger be used to charge a lawn tractor battery?
If both batteries are of the same voltage (12 or 6) yes, you can use the charger. make sure that they are of the same voltage.
Types of Olympus Battery Chargers?
There are two basic types of Olympus battery chargers. The first type of battery charger plugs into both the wall socket and the camera itself. There is no need to remove the battery. The other type of charger requires the square battery be removed from the Olympus camera. The charger is plugged into the wall and the contacts of the battery are connected with the contacts on the base. Once charged, replace battery in camera.
Can the same battery charger be used for lawn tractors and autos?
Yes as long as they are both 12 volt.
Why do you have to connect a battery charger cable to the vehicle chassis when charging the vehicles battery while connected on the vehicle...why not connect to both posts instead?
If you disconnect without turning off the charger, the sparks caused may ignite the hydrogen discharged from the battery while charging.
Can a 12 volt battery charger use to power a 12 volts amplifier?
The battery charger can be used but it is not recommended. The battery charger does not have filtering on the its output like a power supply does. You will probably hear an AC ripple on the amplifier which will become very annoying when listening to the amplifier.
Can you charge a battery while still fitted to a car?
yes..... Simply disconnect the positive and negative cables from the battery,then clean the posts on the battery and the inside of each terminal with a post cleaner (inexpensive tool found at parts stores)or a wire brush until both posts and both terminals shine like new. Then just connect the battery charger directly to the battery posts red goes to positve(+) black goes to negative(-). Once the charger is finished charging the battery then turn off the charger and remove the connectors..then put the battery cables back on the battery and try starting the car...
Can you charge both batteries on a diesel by putting the charger on one battery?
This depends on how the batteries are connected and what the voltage of the charger is.Open a discussion question page with this information for a complete answer.
Can the same battery charger be used on both 17.5 ah and 35 ah batterys?
As long as the charger is outputting the correct voltage for the batteries in question it will work just fine.
Charging a dead car battery?
To charge a dead car battery, you'll need a compatible battery charger or jumper cables and another vehicle with a working battery. If using a battery charger, connect the positive terminal of the charger to the dead battery’s positive terminal and the negative terminal to a grounded metal point on the car. If jump-starting, connect the positive terminals of both batteries first, followed by the negative terminal of the working battery to the dead battery's negative terminal. Allow the dead battery to charge for a sufficient time before attempting to start the vehicle.
