the other day i came out to my car and found the lsirius radio inside flashing on and of very rapidly becauseit had drained the battery so low it cound only stay. i tried to start my car and i dont even get a click. is it gone for good or is there still hope?
2007-12-13 08:30:56 · 8 answers · asked by thegoobman 2 in Cars & Transportation ➔ Maintenance & Repairs
if you have a battery charger, charge the battery up, if you don't, jump start it and then drive it around for about 40 minutes and the alternator should charge it back up if the battery is good and the alternator is working.
2007-12-13 12:42:18 · answer #1 · answered by mister ss 7 · 0⤊ 0⤋
It is possible to salvage a battery that's been drained completely...in some cases. You do not want to hook up jumper cables and get a boost from someone else. It will get the car to start but it will also tax the alternator very heavily, and it will most likely not reach its full charge capacity ever again. This is however what most people would do...a couple months later the alternator will most likely fail and your battery will give you nothing but trouble...still, it's what most people do.
The best method for charging a dead battery is to use whats called a "trickle charger". It is designed specifically to charge 12V batteries (automotive) and uses a series of "cycles" at varying amp loads to charge the battery. Usually a 2 amp cycle (an alternator usually runs between 30 and 120 amps...you see why this can be an issue), this provides the best charge and the best chance for getting the battery back to 100% capacity. It takes about 12-18 hours for this to work however. You can find a trickle charger at any auto parts store, wal-mart, etc for $25-$50 depending on how nice of a unit you're interested in.
It's a good investment in my opinion. You'll be covered for the rest of your days when it comes to charging a battery, it's well worth the cash.
If you do not want to take this route the next best option is to slow charge it off of another vehicle. Again, not recommended but it is still better than simply jumping the vehicle. To do this you can remove your battery or leave it in (I suggest removing it), hook up jumper cables to another running vehicle and allow it to run for approx. 45 minutes or so before attempting to start your vehicle. The goal here is to get the charge up to 100% and capacity at around 30%, this limits the load on the alternator and aids in retaining all the "cells" in your battery.
Hope this helps!
2007-12-13 08:45:13 · answer #2 · answered by mrharris32 4 · 3⤊ 0⤋
jump start and let it run for a while. Once the car is started, it runs on the alternator. this should help unless the battery is very old.
2007-12-13 08:34:32 · answer #3 · answered by Deeder Magoo 3 · 0⤊ 0⤋
Ya jump it and let your alternator charge it...should be good, but probably never good as new...also remember to keep water in the little compartments in the top(if your battery has them)
2007-12-13 08:40:25 · answer #4 · answered by D K 5 · 0⤊ 0⤋
There is still hope, this happened to me yesterday and i took it up to the shop and they just recharged my battery and i didnt have to replace it at all and its alot less expensive. But this doesnt always work.
2007-12-13 08:34:58 · answer #5 · answered by JO 2 · 0⤊ 0⤋
You can use jump leads to get it back up and running again, to go to Halfords or somewhere, because it won't ever go back to power fully again. Sorry... =( You will need to buy a new one.
2007-12-13 08:35:24 · answer #6 · answered by FueledByHannah 2 · 0⤊ 0⤋
try jumping it it may just be juiced or if its dead you can get it recharged for about 25 bucks but if its like fully fully dead... it's about 50 bucks to get a new one give or take so you might as well get a new one...
2007-12-13 08:35:02 · answer #7 · answered by kit-kat 2 · 0⤊ 0⤋
boost it and drive it, dont idle, drive.
2007-12-13 08:33:50 · answer #8 · answered by Waffles 2 · 0⤊ 0⤋