IBM Thinkpad 2647 will not power on , i plug it in to charge and orange light flashes 5 times then stays solid orange . I can leave it plugged in for days and will not change , it will also not turn on with the battery out and plugged into adaptor .

Always check power supply first. Ensure green/orange charging light appears in the LED bank near the screen bottom when adapter is plugged in. If NOT then charger or battery (or motherboard) is faulty.
A dead battery shouldn't cause a shutdown, so the charger is the first suspect. The yellow power socket can become 'rusty' in some cases so inspect this also. If the contacts inside aren't clean & shiny then try some WD40 after scraping gently with a 1 or 2mm flatblade screwdriver (with the battery OUT). If not even a P.O.S.T. (Power On Self Test - IBM logo)
appears with the CDROM and Hard Drive removed, Try cleaning the memory and swapping its position on the back of the unit. Good Luck.

problem is with the motherboard or wrong power

Remove the battery and try to power on without it. Replace the battery if the computer powers on. If not, the motherboard have to be repaired/replaced.

try to switch it on with power cord still plug in it, if it do boot-up, you have to replace your baterry, if not somethings wrong with your laptop

lights ambar blinking 5 times, stop, and again..
I was pushing the power button at the same time with thinkpad button, and fast press F1 key.
I only needed 3 times and it fixed problem.
Right now laptop remaining in bios mode, charging battery normally.
good luck!

Sounds like you may have motherboard issues. it would not be worth the expense to consider repairing this unit.

It might be that you are using older batteries. However, you should try dimming your backlight to the lowest possible setting and performing any other power-saving actions such as limiting the processor's power (if available on your laptop.) Hope this helps.

Have you tried removing the battery and replacing it again?

pls first check your adapter may be problem with your adapter.

thank you

usually when the charging light blinks and wont change to solid green it means the battery is dead.
solution is to buy a new battery