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I would leave it overnight. That small a charger will have to work hard to charge the battery. Replace battery and save yourself battery problems in the future.
No, do not disconnect your car's cables. Connect positive cable to positive one on charger cables, & negative to negative. Attach to DEAD battery FIRST. Then attach to car that's giving you a charge. BOTH CARS MUST BE OFF DURING ATTACHING PHASE. Then the car giving you a charge must start theirs. Let both sit like this for a few minutes (usually 3-5 minutes is plenty). Then try starting your car. If not charged enough, turn yours all the way off & continue charging for longer period of time. YOU DO NOT REMOVE THE CAR's OWN CABLES AT ANY TIME DURING OR AFTER THIS PROCESS, BUT ONLY WHEN A NEW BATTERY IS BEING PLACED IN YOUR CAR.
You need to go to auto parts store and have them check that the alternator is charging the battery. They do this for free. Also have them check the battery to make sure that there is not a bad cell in the battery. This can happen from time to time. if all of that is good u may have a drain on the battery. Check that all lights go out when u shot down the car.
If you are taking your Battery OUT of the Car and it is not charging... That is your Battery
If you are attempting to charge your Battery IN the car with an External Charger, then you may have Corrosion on your Terminals.. Clean them and attempt to charge again.
If you are Trying to Charge the Battery with Running the Car, Test the Battery Voltage... It should be 12.4-12.8 Volts and then when you start the car, it should jump up to 13.4-14.6 Volts.
If the Numbers do not jump up, then it is your Alternator, if they do, then you have a Bad Battery
the battery wont stay charged? if youre putting in a fully charged battery and your car runs, but then the battery slowly dies, the problem will be your alternator. the alternator is what maintains a car batteries charge. try replacing the alternator. hope this helps.
Alternator is what charges the battery. The alternator isn't putting out enough of amps to charge your battery and you will get a light or gauge reading that the voltage is low.
The 'ON' position is for charging OR jumping the car battery. Normally, you just hook the unit to the car battery to jump start it, then remove it and the car alternator will charge the car battery.
The instructions for installing a new alternator usually read to fully charge the battery (12.3 - 12.8 volt range). Otherwise, the alternator will be damaged when it initializes. I have seen some extreme damage result from installing a new alternator with a low-charge battery. The torque required to turn an alternator when damaged in this scenario is unbelieveable!
it is the alternater as the alternater is responsable for charging the battery when the battery need charging.It should run you about 60 dollars fro the alternator plus about 50 for the labor
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