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> Batteries & Accessories > Battery Accessories
> Chargers & Accessories > Accessories
> Batteries & Accessories > Battery Voltage Indicators


HobbyKing™ Lipoly Low Voltage Alarm (2s~4s)

HobbyKing™ Lipoly Low Voltage Alarm (2s~4s)

Simple to use Lipoly low voltage alarm that is small and light for on board use, plug's into balance lead for detecting low voltage on individual cells. A loud alarm will sound and LED will change from Green to Red if any individual cell drops to 3.3v or below.

Lipoly Range: 2s~4s                              
Size: 38x25x11mm  
Weight: 7g
Voltage Accuracy: 0.03v
Low Voltage Alarm Threshold: 3.3v (per cell)


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Weight: 10g
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Price  $2.15

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 Customer rated
Total of 186 discussions.
John  1 points - 2/13/2015
Can any one tell me how loud this is? ie. Is it loud enough to hear if it was in a PEQ box on the side of my airsoft AEG? Thanks in advance
 handyjap 648 points
He only reference to the loudness I can give you is that I can hear the beeping sound even if the unit is inside a model plane at the distance of 40m and more.
 rider 44 points
You'll hear it. I have one mounted in a battery powered drill and it still can be heard with all the noises that drill produces
ray BR  107 points - 1/29/2015
indicated by friends as a good low battery alert. :)
 HobbyShun 179 points
It is.
 EricBR 398 points
not just a good one, but the best!
Matt  1 points - 1/26/2015
Is there any way to wire this to report the voltage to your receiver in real time?
 Matt 1 points
Sorry, I meant to the transmitter.
 AlbEagle007 582 points
In order to transmit the voltage to the radio, the radio and the receiver need to be telemetry capable. If they are telemetry capable, you won't need this to report the voltage, but you need sensors. If you happen to have Turnigy 9XR and FrSky D8R-II Plus, you can make a voltage sensor yourself, all you need is two resistors and connect it to A2 pin (this was just an example).
 Roger 6 points
What kind of transmitter are you running? If its a Turnigy or other one that runs on Lipo, then just plug this into the balance plug on your Lipo the same as you would on a plane.
Thinh  3 points - 11/30/2014
any one know if there's any other product with alarm function at different voltage ie. 3.5v/cell instead of 3.3V/per cell alarm threshold? I am flying so 3.3/cell seems low for my need.
 EstebanT 729 points
Hello. Check PRODUCT ID: HK-CM-06. Can be setted to any value between 3 and 4 volts per cell. Best Regards!
 handyjap 648 points
Also "Hobbyking 2-8S Cell Checker with Low Voltage Alarm" PRODUCT ID: Voltage-Alarm
 Nico 18 points
Just to clarify, this one cannot be set. You would have to swap out the resistor values.
 handyjap 648 points
See "HobbyKing™* Lipo Voltage Checker 2~8S" PRODUCT ID: 206000020-0
Andy  5 points - 11/8/2014
Ok sorry HK I got it....
Customer Reviews
Overall Rating
1 thumbs up!
4 Stück gekauft, wurden vom Zoll beschlagnahmt weil das CE-Zeichen fehlt. HobbyKing leistet keinen Ersatz und fühlt sich nicht zuständig.

11 comments. Reply..

Overall Rating
Markus B.
Like it?
I love this smal alarm system. Easy to fit and very safe. After connetion, it check every cell of your Lipo and the horn will be activated for a second. It is very loud and a nice working tool for more saftey.

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very godd poduct!!!!

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Like it?
model arac kullananlar icin gerekli bir ürün

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What a very good idea for plane.

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