I have ESC which does not have BEC.
Since I am using such kind of ESC for first time, I want to know if I can use my receiver battery to supply power to my receiver  ...?

You can use a separate UBEC that will give you  a regulated 5 or 6V supply for the Rx from your battery.  They are available in different ratings from 1 - 8 A.

Quote from: spitfire on September 14, 2010, 01:21:14 PM
receiver battery to supply power to my receiver

i think if it is receiver battery pack then you can definitely use it in you receiver....!!!

Quote from: sandeepm on September 14, 2010, 02:14:38 PM

Quote from: spitfire on September 14, 2010, 01:21:14 PM
receiver battery to supply power to my receiver

i think if it is receiver battery pack then you can definitely use it in you receiver....!!!

That's absolutely right, Sandeep.

Which is better option, using BEC or receiver battery...?
I think BEC will take power from same lipo as ESC.(correct me if I am wrong)

Quote from: spitfire on September 14, 2010, 02:25:57 PM
Which is better option, using BEC or receiver battery...?
I think BEC will take power from same lipo as ESC.(correct me if I am wrong)

The UBEC will take the power from the LiPo. This solution is more convenient and will not require an additional switch for the Rx supply.

Quote from: sushil_anand on September 14, 2010, 02:32:27 PM

The UBEC will take the power from the LiPo. This solution is more convenient and will not require an additional switch for the Rx supply.

This means I can reduce the weight of extra receiver battery.
Thanks a lot...! This is really gonna help me out.