13 replies to this topic

[simont]

has anyone fitted a separate battery supply for the radio on a scout?

Simon

[seanmcgrath48]

simont, on 17 January 2012 - 06:49 PM, said:

has anyone fitted a separate battery supply for the radio on a scout?

Simon

Just fit a BEC...

[simont]

seanmcgrath48, on 17 January 2012 - 07:11 PM, said:

Just fit a BEC...

a wot???

[seanmcgrath48]

simont, on 17 January 2012 - 07:14 PM, said:

a wot???

One of these
UBEC 5A (8-40v) SBEC Switching BEC for Lipo UK Sale!! | eBay

[simont]

can someone gaz/sean tell me how this works then as plugged in a seperate power into the receiver and
nuffin

Si

[seanmcgrath48]

simont, on 18 January 2012 - 08:36 AM, said:

can someone gaz/sean tell me how this works then as plugged in a seperate power into the receiver and
nuffin

Si

You have to remove the Red wire from you ESC when useing a UBEC..

look at fig 4.3 in the link

Hobbywing-3A-5V-6V-UBEC-manual.pdf (application/pdf Object)

I don't a UBEC in my AX , but do use them in my powered gliders that run 6 servos and a  motor.

Sean

Edited by seanmcgrath48, 18 January 2012 - 09:23 AM.

[big gaz]

i have never used a bec in any of my cars simon, why do you need to power the receiver seperately?? is your steering servo struggling to turn the wheels?? in days of old with mechanical speed controllers it was the norm to have a seperate power supply for the servo but nowadays all esc`s have power feeding the receiver for the servo.

depends whats happening mate, if the servo is struggling to turn, either the drive battery is not strong enough to cope (cant see that) or the servo is not strong enough (quite possible)

hope this helps, gaz.

[seanmcgrath48]

big gaz, on 18 January 2012 - 09:41 AM, said:

i have never used a bec in any of my cars simon, why do you need to power the receiver seperately?? is your steering servo struggling to turn the wheels?? in days of old with mechanical speed controllers it was the norm to have a seperate power supply for the servo but nowadays all esc`s have power feeding the receiver for the servo.

depends whats happening mate, if the servo is struggling to turn, either the drive battery is not strong enough to cope (cant see that) or the servo is not strong enough (quite possible)

hope this helps, gaz.

Some of the Comp guys use UBEC , but thats only because they want the extra power for a hi-torque steering servo . .


Sean.

.

[big gaz]

yeah i do get that but i use similar set-ups without, savox 1256tg off a traxxas xl5 but i use only 2s lipos and from what i gather most comp crawlers use 3s??

to be quite honest, i dont have much knowledge of becs......

[simont]

guys it was just a secondary thought to keep the 7.2 just for running the motor and not both
as previous not doing comps so not worth the time or hassle??

Si

[big gaz]

in that case, i wouldn`t bother mate. just use the main pack.

[seanmcgrath48]

big gaz, on 18 January 2012 - 09:59 AM, said:

to be quite honest, i dont have much knowledge of becs......

There a must have when flying with multi servos . .

..

[seanmcgrath48]

big gaz, on 18 January 2012 - 11:17 AM, said:

in that case, i wouldn`t bother mate. just use the main pack.

Same here...  

[simont]

used to do planes in my youth so yeah bit like nitro cars that have a radio power source.

so we'll leave that idea then

just have to sit back and wait for my bits to arrive then