How to re charge a completely dead battery?
How to re charge a completely dead battery. 1. Find a charger. If you don’t have one, see this list. 2. a. Remove the battery from the car. 2. b. Or if you want to leave the battery in the car, disconnect the negative terminal from the battery. 3. Connect the red (+)positive cable from the charger to the positive terminal on the battery. 4.
Why does my car charger not recognize a dead battery?
The good battery will likely treat the dead battery as a “direct short” and things will get hot very fast as it attempts to quickly dump its current into the bad one and you can risk an explosion of battery acid. In the case with the battery connected to the running vehicle, the alternator is what is charging both batteries.
What should I do if my smart charger wont charge my battery?
Take your battery to your smart charger and hook it up again. The battery should have enough of a superficial surface charge to trigger the battery charger to start the charging process! If it doesn’t work, you can try the process a few more times before you give up.
Can a car charger charge both batteries at once?
In the case with the battery connected to the running vehicle, the alternator is what is charging both batteries. Still, you shouldn’t allow this to go very long without disconnecting as it is a crude way to charge a battery. Remember, we’re not looking to charge the battery.
Can You charge a car battery that is dead?
It all depends on the health of the battery if it is in a good condition you can recharge it with a starting voltage of 14V and reducing it to 12V once charging begins. So, yes you can charge a battery that is dead. How to charge a completely dead car battery Car battery completely dead won’t charge – Guide to Fix
Why does a smart charger not recognize a dead battery?
If the overcharging is too high or goes on for too long you will not be able to replace the water levels that are lost as the battery vents out the pressure to avoid structural damage. Let Me Know How it Goes! Let me know if this trick worked for you or if you have a different way of getting a smart charger to recognize a dead battery!
In the case with the battery connected to the running vehicle, the alternator is what is charging both batteries. Still, you shouldn’t allow this to go very long without disconnecting as it is a crude way to charge a battery. Remember, we’re not looking to charge the battery.
What to do if your car charger wont work?
If it doesn’t work, you can try the process a few more times before you give up. If you do this without a running vehicle and just opt to use a good battery to give the dead battery a boost, be very careful and do not allow them to be connected very long.
Where can I get a new battery for my Mercedes Benz?
If your battery is old or you don’t want to even deal with charging a battery, you can easily get a new battery on Amazon that will fit your Mercedes Benz. They are brand names and you can get the battery at your front door.
When to disconnect battery cable to test alternator?
Never disconnect a battery cable while engine is running to test alternator, you may cause damage to alternator or other electrical components from the surge in amperage. If your battery appears to be leaking, then your voltage regulator has probably failed.