Wait a minute... It's says on the description 6v to 23v that means up to 6s lipo. The buzzer warns you if battery gets below 6v that should be per cell correct? If not, the description is false advertising. How can you use 2 to 5 cell lipo as it states in the description if it only reads the whole battery and not per cell, that would be useless and discharge the batteries to much.
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.
Can this be left connected to the LiPo all the time with just the downstream switch turned off (Glow engine plane so this is just for the receiver battery) or must I separate it from LiPo before storing? Perhaps switch needs moving to input side not output?
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..
Hey guys i ordered this for the " Silvia" 70 mm edf jet It uses 3 9 gram servos I have no idea how much amp draw that would be Do you think its good enough for that plane with only 3 9 gram servos? The control movement is not much either for this high speed plane.
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
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
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
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!
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
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
Great little UBEC! (Although the buzzer is useless)
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excellent product I used it on the silvia and on the espeed pylon racer Works well on both The espeed over amped and fried the castle ESC but the UBEC kept my in control so it glided home to safety The esc was cooked to complete disintegration but now my plane will and has flown again I will order atleast one every HK order Id love to have plenty of spares for new future projects
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Maybe Ubec is nice and economy, but buzzer sux (
I have test it - yes, it start to warn you when voltage drops 6v, but
not loud at all (
and then, after voltage drops below 5.7v - buzzer stops working at all.