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  Item found in the following categories;
> Chargers & Accessories > Accessories
> Batteries & Accessories > Battery Voltage Indicators

  RATED:

HobbyKing™Lipoly Low Voltage Alarm (2s~3s)

HobbyKing™Lipoly Low Voltage Alarm (2s~3s)

Simple to use Lipoly low voltage alarm that is small and light for on board use. This plugs into the balance lead for detecting low voltage on individual cells.

A loud alarm will sound and the LED will change from Green to Red if any individual cell drops to 3.3v or below.


Spec.
Lipoly Range: 2s~3s
Size: 38x20x10mm
Weight: 5g
Voltage Accuracy: 0.03v
Low Voltage Alarm Threshold: 3.3v (per cell)



PRODUCT ID: 067000002

Shipped from:
International Warehouse

Price

$2.07

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 Customer rated
5104
crowns
  
 
Total of 47 discussions.
lweber  20 points - 9/29/2015
 
Can't be beat for the price. Why take a chance on trashing a 50 dollar LiPo when this thing will give a nice loud alarm before the minimum voltage limit. Light enough to mount on every plane or Quad.
pica_pau  60 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?
 SticksOfFuri 2 points
You can set up your speed controller with a programming card to cut off power when it reaches a certain voltage rather than have an alarm tell you voltage is low.
 Free Flyer 228 points
Why would you want to cut the power off not even knowing when will it hapen? :(
 pica_pau 60 points
Free Flyer : I think you have not understood correctly the question. 1- This is a special application. 2- If the system is unattended, it serves of nothing of beeping and sounding if nobody is there to hear it!!!. It can even catch fire if nobody is there to hear it. So: conclusion: Lipoly can only be used in situations when someone is near by to pay attention to the device...!!!
 Elton 1 points
He did not misunderstood. You did not include that info in your original question. Please do so next time.
 wim verleyen 418 points
* pica_pau: I think you missed the point of this advice. This item is a low voltage ALARM so people use this item to get a warning when needed. It's obvious this item is useless when it's used in applications it can not be monitored so therefore only used when it can be heard or seen. What you are looking for is called a battery protection circuit or over-discharge circuit, it cuts the battery of when LVC has reached and makes connection again when battery voltage goes up by charging.
BEST ANSWER CREDIT AWARDED
 pica_pau 60 points
Thanks "wim verleyen"! Does HobbyKink has any device that fits in the category of the products you name?
 pica_pau 60 points
Is it : www.link ???
 pica_pau 60 points
is it www.link ???
titiroot  8 points - 1/26/2015
 
I use this on my FPV rc Dashboard and it's perfect
Dylan  8 points - 12/20/2014
 
this product reliable, don't want to ruin batteries from a 2 dollar product
 Dylan 1 points
yes, works great, highly recommend
 caseMasterxL 15 points
I use these for all my air and ground vehicles. The beeper is loud enough that you can hear it from a fair distance away (20 meters). It's especially nice to use with multirotor applications. Once you hear the beep, you have 30 seconds to bring the craft in without overdischarging your Lipos. It's really light and easy to attach. I use a small amount of velcro and hook it to my battery straps.
 SticksOfFuri 2 points
I run this in my boat and it has been very reliable.
Tantrum  18 points - 12/10/2014
 
Hi Julian, thank you. will try to use hot glue to secure it instead. will update again. cheers mate
 Dylan 8 points
good luck, please update so i can make a decision
BEST ANSWER CREDIT AWARDED
 Tantrum 18 points
Hi Dylan, work great for my case, but it is hard to remove if you have more then one use.
 WeetbixNZ 6 points
i use Velcro dots to secure them in to my vehicles etc - they come in strips with the hook velcro on one strip and the fluffy side on the other strip, they are self adhesive on the back and stick very well, i put the fluffy side dots onto the back of lipo alarm and the hook side into the vehicle, you can use them for small receivers as well. if you do it the same on all your vehicles you could just swap the lipo alarm to the one you are using at the time, but for the price i just brought a few of them.
Customer Reviews
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Overall Rating
CrashAce
861 likes
Value
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1 thumbs up!
this is a great little alarm. it's plenty loud. just buy one and use it for all your 2s~3s batteries. alarm sounds about 20 seconds before my ESC drops power.


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Overall Rating
Bertor
2 likes
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Like it?
Muy bueno. Es pequeño y fácil de colocar en cualquier lateral. El aviso sonoro es muy potente, aunque los LED no se ven mucho.


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Overall Rating
robbo02
3 likes
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Like it?
a must have for all lipo users!


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Overall Rating
Igor
8 likes
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Very nice item, small and neat. Bought it for my quad and works like charm. Loud enough to be heard from nice distance. Thumbs up!


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Overall Rating
Measuredpath
38 likes
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Quality
Like it?
simple, light and effective for the purpose of warning you of any voltages dropping to levels that render you in cable of landing your craft.


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.....click here to see all reviews
I use this simple and inexpensive item on my own Multi-rotor craft. The LEDs are a great visual indication of battery voltage and the loud Piezo buzzer lets me know when its time to land with a safe amount of voltage in the pack - Ben
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