Simple circuit for Battery Status indication for 7.4v re-chargable bat

[Meera]

For my MINI PROJECT

I need to get an LED indication for

full battery and

low battery

the circuit must be simple with components such as transistors,resistors..etc

Battery Details: 7.4v 1500mah li-on

 

[Simon Bridge]

Hint: zener diodes.

 

[meBigGuy]

I'd look at the lm3914.

Overkill, but very accurate cheap and simple.