Turnigy 3A UBEC with Low Voltage Buzzer

 1stAidan 104 points

Two inches long, 7/8 inch wide, 1/2 inch thick. The battery and receiver wires are 4 1/2 inches long each.

 ChilternFlyer 91 points

Lester: The alarm is for the UBEC not the battery. It doesn't care about the health of the battery. It's there to warn you that the UBEC is about to die. The description is not wrong. Although I would agree that it could have been worded better.

 Thomas 26 points

Hi Pavel, Yes - that will work fine.

 leprosylv 23 points

Nop, 5S max !

 Kemo1988 12 points

You must install that switch at the input side to the BEC otherwise the BEC will be ON all the time which is not a good idea, it will take some of the lipo charge and will discgarge it eventually, you have a higher risk of crashing because of lost signal..

 irfanesia 5 points

the current is linear, but the output voltage can be change 5.1 volt or 6.1 volt by change the jumper on the header.

 Miravo 28 points

Hello Arinas,
looking at the photo of the back of the item, i'm sure that this bec is a switching technology one !

 eddfoo 337 points

Definately a switch mode bec :-)

 irfanesia 5 points

this condition is possible to add LED indicator. you can connect 330 ohm resistor and LED as series to the buzzer on soldering layer as parallel connection. :) wish you luck... :)

 CHRIS SV AZ 188 points

Yes it is what you need. Just make sure it will handle the amp draw that your application is asking for.

 spocktra 9 points

Max 5-6 servos would be ok.

 ATHANASIOS 18 points

I am using this bec with 8 9g servos. It works like a charm!

 Helder RC 52 points

Sim, tens de ter em atenç*ã*o a bateria 2s a 5s só*.Funciona lindamentes e tens duas opç*oes de voltagem para receptor 5.1 ou 6.1 .

 srepfler 1111 points

Good enough for only 3 x 9 g servos. If going to digital servos or more go with 5A.

 drakon2063 3 points

it will be perfect to work. with such feed

 gromuluss 218 points

yes it did tested it on the Silvia and the espeed it worked well In fact the e speed over amped and fried my ESC but i glided it home cuz the bec kept me in control Put out the fire and all I needed to do was get a bigger esc The external ubec saved my plane

 sfactor1 939 points

gromuluss...get yourself a watt meter before you fly any new plane or setup

 KaosKane 1427 points

I love Watt meters

 whiskz 45 points

i think it only warns you about power loss, because you only have to connect the and - terminals, not the balancer.

 The General - x5 139 points

Yup. Wookies I eat

 gromuluss 218 points

oooops i mean long before the UBEC

 srepfler 1111 points

No Input voltage: 6v~23v (2S ~ 5S Lipo).

 Zahid Rasheed 70 points

No Bigtote... it can be used up to 5S !!

 O_Lampe 181 points

the warning level should be 3V per cell, HK do your homework!

 Pushrod 585 points

I would say this is just a misprint.

 Royby12 7 points

well it's not misprint... input voltage is 6-23v and it cnnot read voltage per cell... and you can see by the jumper that you can choose between 6.1 warning to 5.1 warning... too bad... it could be really usefull for 3s batt i hope HK will publish more version's fot other cell type

 PeterVau 64 points

The 6.1 and 5.1 jumpers would be the selection of BEC output voltage, like on many other BECs. But the alarm is also possibly linked to that also, eg alarms at 5.1v when you have that 5.1v output selected. It sounds like it is more of an alarm just to tell you if your RC voltage levels are looking a problem, than what your batteries are doing. So this alarm would come into play after the ESC LVC etc, just so you know you are on the verge of real trouble with your RC not getting enough voltage to even operate very soon!

 Royby12 7 points

yes peterVau you probobly right sorry for misguide....:)

 KaosKane 1427 points

roxby please credit someone not me i didnt do anything *}

 fotod 146 points

this thing 3s will be a bestseller. Who uses ubec in small 2s planes, not many.

 gromuluss 218 points

Guys the 6 volt warning buzzer is simply warning you that the ubec will fail if it drops below 6 volt If you use a 3 sell pack then the ubec will not EVER fail The lipos will fail way before the esc in that case

 sfactor1 939 points

whoever designed this is assuming u r using an separate batt just for the rx and doesnt care for the health of batt. they just care that u have enough voltage for the rx. just pretend that it is for separate 2s rx pack and that it is ok up to 23v is just nonsense. even if u were using a 2s lipo, 6v is way too low. better to use a LiFe pack

 ccatalin 239 points

"warn you if your input power source drops below 6v" nice!:)

 DOCA-SP 2834 points

Terrible. If you use 2 Cel Lipo and the beep only start with 6 Volts you will not have time to land. After 6V the voltage go down very fast. It will be usefull only if you use LIFE RX battery.

 jhay 3 points

under input voltage buzzer alarm is good ....but how about thermal protection buzzer alarm ? hk we hope you can fix it..... thanks and more power.......

 gromuluss 218 points

hahaha You guys make me laugh If the 6 v buzzer sounds then don't TAKE OFF You gotta have pretty damn good hearing to hear it when its in flight HAHAHA