How do you know when your car bettery is fully charged?
Answers:
not to get too technical and mention hydrometers and specific gravity etc draper do a smashing little tool with leds on i which costs about £10 and tells you if the battery is ok or the altenator is playing up. if the battery is off the car best bet is to have it in a shed or somewhere out of the house, check the level and make sure it just covers the plates, remove the caps ( a battery generates gas when charging) keep away from naked lights when charging and if your charger has a variable rate set it on the lowest setting for 4 hrs, then slowly at 4 hr intervals increas the charge, if you dont have that setting on the charger and it is fiarly modern it will do it automatically and leave for 24 hrs then test, if it hasnt charged it has what we call suplhated and needs replacing
A trickle charger takes about 8 hours to charge compleatly but you may be able to get away with a half charge as long as you drive it long enough for the alternator to top off the juice.
i have no idea - maybe consult your car manual? - our avatars have the same hair do - do u reckon we have the same hairstyle really?
If its been dead for a month I would suggest a new battery.
if the battery takes water, check the watter level.
get a jump start and take a round trip drive of about two hours, then shut off the engine and see if the car restarts
the car alternator will recharge it faster than a battery charger
most likely it is best that you get a new battery
Get someone at a Garage to run a Midtronics tester on it. Takes about 2 minutes and can tell if the battery is just flat or needs replacing
I am assuming that you have taken the battery off the car and it is going on a charger.
Most chargers have a charge rate indicator - this shows you the amount of power going to the battery. When it is almost at zero your battery should be fully charged.
Before charging you need to check a couple of things - if the battery has caps (6 screwdriver slots) these need to be removed when charging (a 2p coin is good for this). Also check the electrolyte levels, if they are REALLY low then top up to the level ONLY, with distilled water - do not top up if at normal level as fluid expansion happens as batteries charge.
Always charge in a well ventilated area away from ignition sources and put newspaper underneath/around it to protect any flooing which could get damaged by acid splash as battery charges. 24hrs should put your battery in peak condition.
If it is a normal car battery, wich is (60-80 AH), and you have a normal battery charger (4-6 AMP/H) , you should charge it for 15-20 hours.
check the battery water levels too, that they are ok. there`s min and max level marks on the side of the battery
You would have to measure the specific gravity of the fluid within to establish the condition and charge.
You can buy a hydrometer from an auto spares store.
The staff will tell you how to use it.
Be careful, the fluid in a battery is acid and will burn your skin.
a 4amp charger will take around 12 to 18 hrs to fully charge , but to check if the battery is well charged a simple test would be to turn on the head lights on on high beam and then start the car if it starts then the battery is fairly full charged if it starts easily
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most chargers have a guage that will show when its fully charged. if the battery is still good, just jump off the car and drive it or let it idle for a while, the alternator will charge it up.
your alternator probably wont charge a poor battery and will probably kill the alternator.give it a good charge on a full size charger.
ase tech
If the battery has been dead for a month, I'd buy a new one. That dead one will be sulphated to fu*ck and not worth a toss.
HI
GO TO YOUR LOCAL CAR PART DEALERS AND THEY WILL CHECK IT FOR FREE
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