Changed batteries doesn't turn on no power - Texas Instruments TI-84 Plus Calculator

sound like dead battery.no power to fuses if battery dead use digital voltmeter check battery volts should 12.6 volts if not have battery charged tested.if battery 4 or 5 years old battery could be faulty.

see this causes and proceed . God bless you
If the camera won't turn on, check the batteries, or connect the camera to an AC adapter. If that doesn't work, remove all batteries, disconnect the AC adapter, wait a minute, reinsert batteries and reconnect the adapter.
If the flash doesn't work, the camera won't take pictures, or the screen keeps turning off, check that the batteries are strong.

TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.


If this doesn't do it, reply to this post and we'll go on to the next step.

Unplug the power cable; remove the battery then hold down the power button for 30 seconds. Reinstall the battery; plug the power back in and hold down the power button for 30 to 60 seconds and see if it starts.

Things to check first for a camera that won't turn on are battery contact points, and micro switches that are located on the battery and memory card doors. Troubleshooting tips on other things that need to be checked may be seen here. These tips won't work for every case, but they're worth a try.

then your alternator doesn't work, that's why it doesn't charge the battery. If you wan't to know if this is the reason you can try this:
Start your engine, connect a multimeter on the propper battery terminals to test voltage level, with your car still on it must have around 13.5 to 14 volts. Turn on your lights and air conditioning it should not descend more than 13 volts. If it's less than 13 volts then your alternator doesn't work and it has to be changed.
Some people does this other test but is not recommendable: Start your car remove ground terminal if the car remains on, then the alternator is ok (If you have a tester I would recommend the first method)

remove charger,
remove battery

press and hold the power on button for 1min

place battery

press power on button,

if it doesnt light up, then check your memories chips. try another one

good luck

Hi,
Clean battery terminals of battery compartment of camera and make sure terminals are clean and shiny, and check.
Thanks.

Hi there,

When you said it's not turning does it have any indication of power and just doesn't boot to your operating system or It doesn't have any sign of power at all?

If it doesn't have power, try to remove the battery plug it into the power outlet using the ac adapter and turn it on. Check the adapter to see if it has a light to make sure that the computer is receiving power.

If the computer turns on but you can't get to windows see if any error message is displayed and be ready with your windows cd/dvd because a reinstallation might be needed.

Hi,
Remove the adapter and the battery from the laptop.
Press the power button and hold it down for 20 seconds(without the battery or adapter plugged in to it). This process is called POWER DRAIN.
Now connect only the adapter and try to turn it on.
If it starts up, there is no problem with the adapter or the laptop.
If it doesn't, it can be either the adapter or the laptop.
You will have to check it with a different adapter to confirm which one is faulty.

The second case is that the computer powers on only with the adapter.
Then you can put the battery back in and try powering it up.
If it doesn't work, try connecting the adapter too.
If still it doesn't work, its a faulty battery.

Sometimes after doing a power drain, the computer will work fine.
If you have any more issues, feel free to contact me.