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> 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  $2.26

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 Customer rated
Total of 191 discussions.
Tarald  1 points - 5/7/2015
Yes, if the GND lead doesn't have a potential over the other leads the alarm shuts off.
Marvyn  1 points - 5/7/2015
I have an application where this would be permanently mounted in a hard to get at location. I'd like to be able to leave it attached to the balance port between uses and not have it draw off the battery. Can I put a SPST switch in the balance plug ground lead to turn it off?
 Tarald 1 points
Yes, if the GND lead doesn't have a potential over the other leads the alarm shuts off.
jesus  6 points - 4/27/2015
I have a turnigy brushless motor 2836-3700********30amp. Max. What kind of esc im i supposed to use on this, if someone can help me with this I would appreciate it thank you.
 BuBu1 305 points
Please go ask this question in the motor's page
 HobbyShun 181 points
TURNIGY Plush 40amp Speed Controller PRODUCT ID: TR_P40A will be a good choice. But it will be better if you ask questions about the products in that products pages.
Chris flory  21 points - 4/21/2015
3.3v is a bit low... As a safety feature fine, but you would want to think about landing your aircraft before reaching 3.3v. Does anybody know if you can buy one of these that beeps at around 3.5v - 3.6v? I want to use in an FPV plane (I will hear the alarm through my camera mic) and I want it to beep when I have enough juice left to turn around and fly a couple of km home... at 3.3v it would probably be too late. I realise an OSD with current sensor is a solution but this is a very simple set up and i want to keep it simple and not add an OSD. thanks
 EstebanT 791 points
Find product ID: HK-CM-06. It allows you to adjust the alarm to any level you want between 3 and 4 volts, with steps of 0.05 volts.
 jesus 6 points
Go to e-bay u can get one with Digital voltage screen for like $4 I think that the lowes that could go is 3.2 volts and I think the highest is 3.9v or 3.7v
pica_pau  45 points - 4/16/2015
I need a device similar to this one, but that, instead of beeping and sounding would cut the power supply. There are any device that acts like that?
 Kimmerek 332 points
Usually we program ESC to setup the cut off voltage :)
 pica_pau 45 points
I want to use it ti a very specific situation, and in this particular situation, there is no ESC!
 Djonsnel 59 points
Just take a relay and a variable resistor. dial in the voltage for witch you want to cut off the power with the resistor (using a multimeter) and the relay switches off the power.
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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