ESC with external UBEC Built In

[Ivan M]

Dear all,

Can you share what's the use of a UBEC?
How does it benefit the user?

[johndyl]

Battery Eliminator Circuit, it powers ur rx, servos, gyro etc through the main batt.. it basically steps down the main batt voltage.. most Escs for <500 sized helis come with it

do a search, it has been asked many times b4

[Bee_Flower]

I use it to prevent power overload my ESC. On my Zap400, I use UBEC because I use 3 digital servo & 1 HS81. Without UBEC, my ESC will cut off due to the power drawn.

For my bigger heli, all have BEC or UBEC.

[Ivan M]

I ttried doing a search earlier but can't seem to find the answer.

I've seen BECs around but what about UBEC? How does it differ?

[Bee_Flower]

Read this: http://203.124.102.59/forum/showthre...highlight=UBEC

[skyblueblue]

i think bec and ubec means the same. The U should stand for Universal.

Wat u wanna look out for is how much the bec can step down. Normal BEC can take 2-3s lipo abt 8.4-12.6v to 5-6v. The really expensive ones can step down 2-10s lipo tp 5-6v.

5-6v being the operating voltage for all the on board electronic eg servo, gyro, rx, LED, retracts

Some ppl use more then 1 bec for eg. gyro only max of 5v but servo can go up to 6v for faster response

[Nazar78]

hi, just to share. as confirmed by broe johndyl, i'm using my spare old stock brushed esc acting as external bec wic has 2a5v. u can get those 3a ubec if u need more but mine juz work fine to cool down my esc...