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The portable charger should NOTE be connected to a battery while the battery is connected to a vehicle! Charge the battery off the car, then disconnect the charger and put the battery into the vehicle to start it! If the charger is not working check the fuse! If that is ok then probably damaged the circuitry!
Try charging your laptop with a spare charger. If your laptop is still under warranty, make an appointment with a genius bar representative at a local Apple store to diagnose your laptop's issue and replace the charger.
Warning! Do not use the USB ports to charge any external devices from your laptop! Instead use the chargers they were packaged with.
If the spare charger doesn't work after an hour of charging you will have to reset the System Management Controller with the Mac turned off: Press Shift-Control-Option-Power key combination. Release and press the power button.
If resetting the SMC doesn't work try resetting the PRAM. Keep in mind that you have to enter the key combination before the grey screen appears!
Reboot your laptop. Immediately hold down Command-Option-P-R combination. A reboot sound should confirm the reset.
Does the computer start anyway, but it's just that the battery won't charge? If that's the case, it's probably a bad battery.
A procedure to do before assuming a bad battery is to (1) remove the battery, (2) disconnect the power supply from the computer, and (3) press and hold the power button for about 30 seconds. This resets the logic circuits in the internal power handling section. If that doesn't help either, then the battery is probably bad.
If the computer isn't starting, however, it could be that the power supply has failed. Check the voltage output on the power supply.
Are you sure it was fully charged before? Could you see the full battery bars?
It sounds like your AC adapter (the charger) has likely gone bad. The phone battery probably wore down, and when you plugged it into the charger, the charger couldn't charge it, so the battery remained dead.
Since the battery is not charged, you can't turn the phone on at all when it's not connected to the charger. And when you do connect it to the charger and turn it on, you get the intermittent charging because something inside the adapter has a faulty connection -- sometimes it works, sometimes it doesn't.
You can easily verify if the charger is the problem by getting a new charger (they're not too expensive) and seeing if the phone will work and/or charge with the new charger.
If the new charger doesn't fix the problem, post again here and we'll go from there, but I think the new charger will take care of it.
there are a lot of cuase on auto shut off the laptops..
1. if the battery not inserted on laptop... it means you using the charger when you disconnect or loss the connection, auto shut off.
2.if the battery inserted and full of charge.. then make auto shuto off.. this problem,, sometime overheating,, A. fun not working properly..B. shortage of cheps.
try to check the charger and battery,,, use another charger to test observe atlest 30minuts.. the problem the sam auto shut off.. check the cpu fan.. or processor
note" if under warranty don't open it. bring to warranty..
When my phone is connected to the charger, it says fully charged. But as soon as I disconnect the charger, the battery shows empty. When I connect the phone to the charger, it starts charging but after 10 seconds it says fully charged.