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YES. it will ruin your battery as the battery needs the alternator too recharge a full battery will last you 30-40 min maybe more or less depends.. it will drain your battery and make you stall (you mite be able too recharge later)maybe) if your alternator is bad YOU must get a new or used one ,its recommended if you get a new alt. get a new bat. as this will supply you years of trouble free from your car electrical issues.

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โˆ™ 2009-06-21 21:47:29
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Q: When an alternator goes bad does it ruin the battery?
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When a battery goes bad does it ruin the alternator?

Not likely but as alterantor keeps trying to charge a weak battery it may wear out, however as you are not likely to keep a bad battery in the car for so long there should be no damage to alternator if battery is replaced.

Why won't the battery stay charged on a1971 vw beetle?

Your battery might be bad, or so might the alternator, or both. A bad alternator will ruin a good battery over time, and vice versa.

Will a bad ground wire ruin an alternator?

a bad ground wire can ruin an alternator by not completing the circuit

Can a bad starter keep your alternator and battery from charging?

YesFirst if the starter is bad the car will not start, if it will not start it can not charge the battery.If the starter will not work it can mean there is an electrical problem that will also prevent the alternator from charging the batteryThe starter itself CAN NOT CAUSE CHARGING PROBLEMS!The extra load on the battery can ruin the battery and that can ruin the alternator. But before that NO.

What would cause your battery to drain of all power in 96 Nissan Sentra?

When the alternator goes bad or goes out completely, the car's battery will be drained. I suggest you pull the alternator and have it tested. If the alternator is bad, you will most likely need a new battery as well. The cost is around $200.00.

What does it mean when the battery light in my Hyundai Sonata goes on?

Usually it means your alternator is bad or going bad.

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.

What does the battery light on mean in your town and country minivan?

The battery light coming on in your Town and Country minivan means that the alternator needs to be replaced. The alternator charges the battery and if it goes bad it will not charge the battery.

Why isn't your Mazda truck alternator not charging your battery?

bad alternator, bad voltage regulator, bad battery, bad connections.

When a Car cranks but goes dead what could be wrong?

your alternator ain't charging your battery or a bad connection draining the battery

What causes battery drain in Honda rancher?

The main cause of battery drains is a bad electrical system. The electrical system is normally powered by the alternator and once the alternator goes bad the battery has a hard time holding a charge,

Why does the battery light come on intermittently the alternator has been changed battery checks good the lights flicker when battery light is on and light goes out after car is restarted?

Battery light usually means alternator not charging. Most common solutions would be be a bad alternator, bad connection, or loose alt belt.

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