Does jumping a dead car battery eventually drain a good battery?

Question

I have heard this (and that an alternator doesn't really charge a dead battery), but I would like some feedback. Anybody have some knowledge in this area? Could you point me to a good source for this information as well?

Thanks.

I have heard this (and that an alternator doesn't really charge a dead battery), but I would like some feedback. Anybody have some knowledge in this area? Could you point me to a good source for this information as well?

I'm not asking because I have a dead battery. I'm simply asking from a theoretical standpoint.

Thanks.

Answer 1

When a batteries cells are dead it will not hold a charge does not matter if you jump the battery it still will not stay on!!! But if the battery is just drained and you jump it the alternator will charge it as long as you let it run or drive it for a while! And yes if you keep on jumping the dead battery eventually it will shorten the life of yours but I mean if you do it allot!! Good luck!!

Answer 2

A good battery has positive plates of lead/zinc connected to each other and negative plates of same connected to each other, like two combs where you mesh the teeth, only with spaces between and nothing touching. The acid eats the material and produces and stores electricity by chemical reaction. A bad battery has warped plates, where the spacing is bad, or cracks in the plates. This causes dead "cells". It is a physical imperfection that inducing more electricity into won't solve. A good battery will drain if trying to start a car that simply won't start repeatedly, or that has a bad alternator. It will replenish itself somewhat or altogether with time to do so, again by chemical reaction.

Answer 3

you have a battery with planned obsolescence. Battery manufacturers understand that over the years battery acid deteriorates particular styles of metallic areas interior a battery, so as that they make serious inner factors out of that fabric understanding that presently after the guaranty expires, the battery will self-destruct. this is why once you purchase a battery, continuously learn warranties and purchase the longest guarantee for the least money and be useful to maintain the receipt and guarantee workplace work in a ziplock dishevelled on your glove field. Then while (not if) your battery would not artwork, simplycontinual to the situation the place you purchased it and get yet another battery and income on the guaranty if it is not expired yet. If it is expired, do not purchase that kind lower back. i've got been doing this ever on the grounds that i stumbled on the scam, and that i in simple terms understand i will continuously be paying lots in keeping with year for each year of the battery guarantee. there is not any way around it. .

Answer 4

the alternator will recharge a dead battery. jumping off a dead battery will not drain a battery as long as the car is running. after the car starts that is being jumped off leaving the jumper cables on both car can burn out the alternator due to power feeding back into the alternator.

Answer 5

A good battery will not be ruined by using it to charge a dead battery. The reason is that batteries are made to be charged and discharged. As long as you are using the car with the good battery then the alternator will keep your battery charged.

Answer 6

Sort of yes, - and no! Theoretically, if left conected long enough the batterys would seek the same level of charge, (and they would both be "half charged"! In essence the charged one would be "drawn down" the dead one would be "picked up"

When it comes to actual "practice" it may be that neither one would start the car,- or both of them would start the car! Depending on how much "cranking power" was required, - and how easily the car starts!

Now about alternator charging the battery! First of all the alternator will not charge the battery if you start with jumpers, and immediately remove the cables! It requires a certian amount of power stored in the battery, before it produces enough current to run the "field" of the alternator! If it hasn't gotten enough before you pull cables off,-it will run a little ways, and then quit! So leave the boosters on for a few minutes to insure that your alternator is doing it's job (if it can)!

If you are stranded, you can take a second charged battery, and carry along to put in when first one goes down to far to let car run! When car stops (it will run lousy a couple miles before it quits) -- Just swap batteries. An alternative is to put jumper cables on battery inside car, run through window, and to battery in engine compartmen! Put something in to insulate cables from hitting any thing that would ground cables, put rag between fender and hood, close down (only to :"safety catch - to avoid bending hood). This will allow you to go about twice as far before engine stops , (note you can put a rag in window too and roll almost all the way up if it is incredibly cold outside!) Now while you are diriving you want to use NOTHING that you can do without in way of accessories (as they run battery down faster). This means no hearter, airconditioner (raido is minimul pull but does consume electricity too). Daytime driving is best too,. as headlights and parking lights pull a lot of power! Now when first battery goes "down" note amount of time lasted. Put "second" battery on line (not using both at once naturally), - now you have about the same amount of time left on the second battery to finish getting home,- or find a gas station somewhere that will charge both batterys for you agin! NOTE: battery acid eats carpets, so make sure you put newspapers, plastic or something thick enough to make sure acid doesn't get on floor (in trunk, or interior floors too)

Or you can simply have a second car driven by a friend, - and swap batteries every time yours goes down, put on boosters to start his, leave on for about 5 minutes, and then drive---he will then be charging yours while you "run down" his, - swapping every so often,- as you go, (like rest stops) or convenient stopping places on road (even if the battery not dead yet)!

Answer 7

1

Answer 8

No But it can cause electrical problems in some models.

Answer 9

from what i have heard is dat sometimes it can mess up ur electrical system...Good Luck

Answer 10

no, it wouldn't

a "good" battery would recharge itself