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Could be the battery has a weak charge! Try running the battery completely flat, recharge fully, then run completely flat, and repeat this cycle about 3 times......This will give the rechargeable battery a revitalised full charge! This is a good procedure for any rechargeable battery as part charging and charging when not completely flat does take its toll on a battery.
It sound's like the battery need's to be replaced, the alternator can't be checked without the car started, to check the alternator measure the voltage across the battery, it should read higher than the battery voltage. if the voltage on the battery stay's at 12 volt's with the car started the alternator is bad.
Hi, sorry to hear you are having problems,
Are you saying that your Mac was working fine with the dead battery but then when you put in the new battery, the Mac died?
Well, if that is the case it might be possible that the battery ran down to ZERO and the mac's internal battery also is dead so, it does not even know what hard drive to boot into...
So, with the Mac Shut Down, hit the power on button and then VERY QUICKLY, press the ( alt ) key and hold it until you see a blue screen with a Big right pointing blue arrow and a circular arrow.
You can let go of the key, and the mac is now looking for suitable startup volumes to boot from...
You should see your harddive appear after a minute or so... If it does not appear, then either your system is damaged or your disk is KAPUT...
How old is your Mac? It is very very common for PowerBook drives to die after 4 years without advanced warning... :(
On Mac iBooks the orange light comes on when it charges the battery. Once the battery is charged it turns green. Im guessing the other powersupply was aftermarket or broken. EIther way, if it starts out green - recognizes the battery isnt full - turns orange for a while - then turns green when the battery is full, then the computer and powersupply are working perfectly. Enjoy your iBook!
Most Dell batteries have an LED indicator that allows users to see how much run time and how much overall battery life are available at the touch of a button.
To check battery charge, press the button and the number of lights that appear will tell you charge status. If all lights appear, you have a fully charged battery. Each light that appears accounts for approximately 20% charge.
To check the battery health, press and hold the status button on the battery charge gauge for at least 3 seconds. If no lights appear, the battery is in good condition and approximately more than 80 percent of its original charge capacity remains. Each light represents incremental degradation. If five lights appear, approximately less than 60 percent of the charge capacity remains, and you should consider replacing the battery
if the ac adapter will power the laptop without the battery installed its fine. if the cord is fine and your battery is fine its a mother board issue and it will most likely have to be replaced