red light on transmitter

[cfionthefly]

New Pantom user here with a quick question. I put 4 brand new batteries in the transmitter and the power led light on the transmitter is steady red instead of green. What does that mean? Is it supposed to be green? Thanks

 

[cfionthefly]

Watched the phantom 2 video again and it shows a red light too, so I guess im good to go. Find it a bit odd though they made it red. How do you know when your transmitter is running low on batteries?

 

[Ravecreative]

It starts bleeping