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My battery won't stay charged Replaced the alternator but battery still won't hold a charge Im almost positive that the battery is still good what could it be?
Wiki User
∙ 10y ago
Why Batteries Won't Stay Charged or "Die"
There could be many causes, but the most common causes include:
- A charging system [loose drive belt (s), defective alternator or generator, defective voltage regulator, damaged wiring, disconnected, loose, or corroded connectors and/or grounds, etc.] which is out of adjustment or defective.
- Corrosion on the battery terminals and/or the battery cable terminal connector clamps which inhibits or totally blocks the flow of charging current.
- Battery is just plain "worn out"; has reached the end of it life span.
Wiki User
∙ 10y ago
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How does an alternator keep a cars battery charged?
An alternator has diodes which transform ac voltage to dc voltage so that the battery gets negative and positive current on its poles thus making the battery to be charged.
Why does your battery light stay on you put a new battery in it?
That light doesn't mean that your battery needs to be replaced. It means that your battery is not being charged while the car is running. Have your alternator tested.
1996 Taurus battery charging light came on replaced the alternator and the problem seemed to disappear day later light back on battery not getting charged bad alternator?
you may have a bad battery or a bad voltage regulator
Will battery recharge after bad alernator is replaced?
An alternator is designed to keep a fully charged battery at peak level. It is not designed to charge a dead battery. Installing a new alternator on a car with a dead battery can in some cases ruin the new alternator. Fully charge the dead battery before starting the engine.
How battery get charged in car?
As the alternator runs, it charges the battery.
Will a van start if you need a new alternator?
As long as the battery is fully charged it will start no matter the condition of the alternator. Eventually the battery will run down if the alternator is not keeping it charged.
You've just replaced the battery and alternator in a 1998 Ford Escort. Do you need to let it sit for the battery to charge or is there more to it?
If you replaced the battery with a brand new one, then no. The battery comes from the store with a fuul charge. If it didn't come charged up, then you have bought a defective battery.
Will a car start with a faulty alternator?
As long as the battery is charged
What is the duty of an alternator in a car?
It is there to keep the battery fully charged.
Can a car start with a bad alternator?
Yes it can as long as the battery is charged . The purpose of the alternator is to put the power used back into the battery.
Can you start your car with a bad alternator?
Yes it can as long as the battery is charged . The purpose of the alternator is to put the power used back into the battery
What might be the problem with a 1988 Civic Hatchback that is causing the battery to discharge Have already replaced alternator igniter coil main relay and the battery?
You have a short - it's hard to be more exact than that, but if you disconnect the battery and charge it outside of the car and it stays charged, you have a short. If it does not stay charged, you need a new battery.
