My LG Transpyre that powers down immediately after i turn it on even though it has a full charge

Yes.

U are not using an original LG battery. They have some sort of chip inside them for ID purposes. When you use another battery, even though it fits properly, the phone will not charge the battery!!!!
On my LG the off brand battery works but I have to use a universal charger to do the deed and not the phone. It appears LG has taken it one step further by not even allowing you to use a non LG battery!
That really bites!!!!!!!!!

Scott when you plug your Motorola Luge in does it blink or have any sign of life from the light either at the top of the phone or backlight of the screen?

Motorola Support

my son charged mine with the car charger for higher voltage charge and its working fine now

do you have a universal travel charger? and use it to charge your battery for about 4 hours. or buy a new battery.If it is not ok, your phone is in short-circuit. go to service center

Most likely a door switch

Yes it is, seems there is some problem with the power state detection and changing of the load mode. Might by a physical problem, so I am not sure you can fix it.
At least check your power plan details and see if there is any error with the ACPI devices in the device manager.
In general, if you use the laptop when plugged, you should take out the battery to maximize the battery life (prevents useless load cycles).
Also configure Windows to optimize battery usage.

This fault is usually caused by a lens problem.
Over 95 percent of lens problems are from Knock damaged or sand/grit in mechanism. Try turn it on in playback mode and see, does the lens come out and go back in before it turns off?
Cheers.

are you using rechargeable batterys or cheap ones
you have to get batteries specifcly designed for digital cameras or they wont power the camera properly.. try using different batteries !!

throw it against the wall