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Best Battery Replacement? Who Is Using What?
#21
12 Second Club
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Not true at all...your alternator is designed to run the entire electrical system after the vehicle is running. The battery simply holds a charge while the engine is off to start the vehicle and run the radio and **** while it is not running.
Once it is running, your battery is no longer a battery, it is a capacitor to prevent voltage spikes from entering sensitive computer circuits and causing power surges.
Don't believe me, get your car running and remove the positive battery cable...it will continue to run.
Once it is running, your battery is no longer a battery, it is a capacitor to prevent voltage spikes from entering sensitive computer circuits and causing power surges.
Don't believe me, get your car running and remove the positive battery cable...it will continue to run.
#22
That's MISTER MODERATOR
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There was a thread where the guy from Optima was posting, fielding questions and setting myths and such straight.
I recall him saying that if a battery was stone cold dead, it would need to be charged outside the vehicle.
Regardless, I've always been able to bring them back with just the car's alternator.
I recall him saying that if a battery was stone cold dead, it would need to be charged outside the vehicle.
Regardless, I've always been able to bring them back with just the car's alternator.
#23
TECH Senior Member
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There was a thread where the guy from Optima was posting, fielding questions and setting myths and such straight.
I recall him saying that if a battery was stone cold dead, it would need to be charged outside the vehicle.
Regardless, I've always been able to bring them back with just the car's alternator.
I recall him saying that if a battery was stone cold dead, it would need to be charged outside the vehicle.
Regardless, I've always been able to bring them back with just the car's alternator.
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#24
TECH Fanatic
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I just got the "gold" whatever from my local auto parts store. Its got I think a 3 year replacement warranty so thats all I really care about... dont have to spend a dime if it goes out. I think you get a 3 year warranty with Optima as well but they cost a little more. Last year I forgot to unplug the battery during winter storage and I guess it got drained so bad it wouldn't take a charge... this was a 1 year old battery... lucky for me i got a replacement for free.
#28
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I know this is an old thread, but I am very impressed with my energizer battery. I have never had it on a tender, and the car sits all winter in a garage or under a cover. Year after year the car starts right up without issue. I cannot remember when the battery was put in, but it had to be at least 10 years ago.
#29
Banned
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If you discharge two different battery several times, and fill one back up using an alternator, and the other using a high quality charger, the one that gets charged with the charger may last longer.
#30
That's MISTER MODERATOR
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A properly functioning battery can be brought back to full charge from stone cold.
When somebody has a dead battery (they left their lights on or something) you give them a jump start and tell them to drive the car without shutting it off for a half hour. That's enough to get enough charge to start the engine.
#34
Banned
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While this is true, I don't think batteries are often taken down to stone cold dead. Maybe once in the life of a battery?
A properly functioning battery can be brought back to full charge from stone cold.
A properly functioning battery can be brought back to full charge from stone cold.
#35
That's MISTER MODERATOR
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A well made alternator has quality coils wound properly and a matched rectifier set. All electrical items today have a power supply with rectifiers to convert to DC voltage. Rectifiers are semiconductors that have no moving or wear parts and don’t go bad from normal use. Rectifiers don’t care if their electrical load is light or heavy. How many items do we own that have rectifiers in them that last for years, even decades?
Yes, alternators do go bad-but not from using them more heavily than normal. If they did, they would blow up when you turn on your air conditioning, headlights, seat heaters, window defroster and wipers at the same time with radiator fans running while stuck in traffic at in-gear idle speed.
Putting a heavy load on an alternator will not shorten it’s life.
Exactly how many times do you totally discharge your car battery to stone cold dead status?
#37
TECH Senior Member
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i read good things about those interstates. i'll probably do one of those next time. supposedly made by johnson controls here in the states.
i also hear that optima's quality has gone down in the last couple years. that's kind of a bummer.
also interested in a normal size but lightweight agm, but i cant find one that fits the bill just yet
i also hear that optima's quality has gone down in the last couple years. that's kind of a bummer.
also interested in a normal size but lightweight agm, but i cant find one that fits the bill just yet
#38
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Before I'd spend top dollar on Optima I'd get a Braille, Odysey or other lightweight battery and drop 20+ lbs. That's an easy weight savings on a necessary component. Roadrace, autocross, HPDE enthusiasts do it often...I'd think every little bit of weight you save increases performance by some small margin.
#40
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Two popular lightweights, I'd guess we have a supporting vendor that sell at least one of these two.
https://www.braillebattery.com/index...atteries/b3121
http://shop.odysseybattery.com/p/pc9...ersports?pp=25
https://www.braillebattery.com/index...atteries/b3121
http://shop.odysseybattery.com/p/pc9...ersports?pp=25