Lipo as a receiver battery

Does anyone use a Lipo as a Rx battery in an i/c model?

I am planing to us a 2S1P lipo and a 3A UBEC and I was wondering if others are doing this and if so how well it works.

I would be interested to know how you go about ensuring that the Lipo has enough charge at the start of each flying session.

My main reason for doing this is that I can charge up the Lipo and leave it and should be able to fly at short notice without waiting to charge up the receiver pack.

Thanks for your help

Bruce

i seem to recall seeing something about some receivers/servos ok on the higher voltage but that some were not, but cannot remember detail.

 To get round this  you can buy fairly cheaply a simple BEC which will cut the lipo voltage (2 or more cells ) down to Rx /servo voltage.  This is not an ESC with BEC but just a BEC hence much cheaper.

a quick google on lipo +bec turned up $22 for a 10 amp unit so they are out there.

google also turned up an article on this web site !!! which also covered lipos for Tx's

 john

Hmmm - my thread has died then ?? - its even on the front page of the forum !!

http://www.modelflying.co.uk/news/article/mps/UAN/222/v/1/sp/

John

Thanks for your reply I am sure you were trying to help but did you read all of my original post?

Bruce 

I've been using Lipo's as the Rx battery. You need a BEC that regulates between 5V and 6V and with enough power to supply the servo current(amps) demands. Charge the battery using any normal Lipo charger. I charge via the balance connector by using an in line balancer.

To ensure adequate charge, you should charge before each flying session - Lipo chargers are all quick chargers so it's not like you'd be wasting much time. If you have a battery checker that can attach via the balance connector, it would be a useful way of verifying charge before you fly.

Bruce,

 yes  and what  meant to infer was that as becs were aavailable for just that purpose, then the market was already well established and that there were by inference many people already using lipos for this purpose clearly without problems.

john

OK John thanks I understand now.

Bruce 

And in case you missed this one too Bruce, try

HERE

Thanks Timbo I had seen that. Very informative.