0
Can you charge a dead battery by getting a second car that is running take the good battery out of the running car and put the dead battery into the running car as a means of charging it?
Wiki User
∙ 14y ago
No, this will place a very heavy load on the alternator of the car and may result in burning out the diodes of the car charging the battery. You could easily ruin the alternator. Purchase a battery charger and charge the dead battery with that. Alternators are not made to charge dead batteries.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Does a car have to be moving to charge the battery?
No , for the battery to be charged the engine must be running . This means that your alternator , if it's functioning properly , is charging the car's battery as the engine is on/running .
Caravan battery wont keep its charge once inside caravan only had it 6 months?
what are you running of the battery? also do you have the double electrics for charging battery when driving.if not keeping charge you need a new battery
How do you know if you need a battery?
Age of battery Battery will not hold a charge (check with a volt meter) A fully charged battery should read approx. 12.8 volts (without engine running) If charging system is working properly reading should increase to approx. 13.8-14.2 with engine running. If voltage does not increase with engine running could be a problem with charging system of battery is defective and will not take or hold a charge
Can a car's alternator charge the battery while the car is not running?
No. The alternator has to be turning to produce the charging voltage. It only turns when the engine is running.
Why will sears lawn mower battery not charge?
Do you mean that you can not charge it with a battery charger or the mower will not charge it while it is running? If you can not charge it with a battery charger and you are sure that the charger works then the battery is bad. These type batteries are only good for a couple years. If the mower is not charging the battery it could be a number of things.
What causes the battery light to come on 2000 cavalier?
The Battery? No, not typically the battery. That means that the alternator is not charging the battery and IF the engine is running, it's getting all of it's electrical energy from the battery. It means that once the battery charge is depleted, the engine won't run again until you recharge the battery.
Can a loose positive battery cable prevent the alternator from charging the batter and can it cause a battery drain while the engine is not running?
Yes, a loose battery cable will prevent the alternator from charging the battery. The drain on the battery is not caused by the engine not running unless an accessory is left on. Most likely, the drain is caused by accessories (radio, lights, etc) while the engine is running due to the battery not receiving its charge from the alternator and then not having enough charge left to start the engine.
Can you use and charge and battery at the same time?
I kinda wonder that myself...I am running my 12v LED computer fan from a 12v battery pack from my Ryobi drill with the charging cable inserted into the battery...it says its charging, and my fan is running...So, I will see if it doesnt explode...fingers crossed...
Why doesn't a weed eater stay running when the battery is being recharged?
Because the weed eater gets its power from the battery, not the charging unit. The charging unit most likely does not have enough amps to run the unit, whereas the battery does after a full charge.
What most likely the problem if your 1995 Geo Metro battery dies really every time you replace it?
Alternator is not charging, or if it is the charge is not getting to the battery
What is boost charging?
Boost charging involves a high current for short period of time to charge the battery. It is generally if the battery has been discharged heavily. Boost charge enables the quick charging of depleted batteries.
How do you reset cadillac battery not charging light?
reset battery no charge light after battery replacement.
