USA warehouse now open. Our USA warehouse is now open! Low cost shipping and an ever growing variety make ordering from the US warehouse even better value!
Simple & easy to use! A perfect solution for when youre at the field and not sure if your battery is charged! The BMON6 plugs into your battery balance plug and will quickly tell you the total voltage as well as each cells individual voltage.
Important. This item is not accurate enough for precise cell balance checking. It is to be used to check battery charge status. For ultra accurate battery cell balance status, try our Japanese built Cellmeter.
can i have it fixed in the rc car battery?.. im planning on using it for my car FPV to monitor my battery.. this is a very cheap alternative in case it is ok to leave it attached on lipo.
I'm not sure how you would monitor this while in use, but it works fine to leave it attached to a lipo. However, you have to note that internal resistance means the number display is not always the true voltage when the battery is under load.
Hello everyone
When i connect 3s battery its shows
1 cell -7.08
2cell shows-d3.3
3 cell shows 8.19
So 2 cell shows d3.3 voltage so what does it mean???
I think that your middle cell is dead and it is forcing it voltage in other 2 good cells that are by now damaged also of higher voltage than specified. I got a similar problem, disasebled batteries and removed bad one, and than balanced other two! Now they are fine.
try doing a test on another battery if the meter is good,
by your description is to be one of the damaged cell battery, but do the test with another battery that is good !
questo oggetto è* molto buono ti informa sulla tensione totale del pacco e in sequenza da la tensione di ogni singola cella quindi se una cella è* troppo bassa o alta rispetto le altre bisogna bilanciare la batteria
Hello ozziefirebee the battery monitor is good but sometimes fails, I have one that goes well but sometimes it fails, it's cheap, something better is HK $ 8 charger I use it as a monitor, bye.
I bought over 10 and gave them away as to friends. The number six cell did not work in every one of them. I tried it with several batteries and it still read the sixth cell incorrectly. They read 4.45 volts and higher for the sixth cell with any full charged battery. Five cell packs and lower were fine. The number six cell was no good.
This unit will show the number of cells and the voltage of each cell, then the voltage of the complete pack. Very nice unit to check packs in the field, quick & easy!
good afternoon everyone. I could leave this unit turned on while I'm flying? I would like to install on the airplane panel to give the impression of a real panel.
My only question is this, can I leave it on for a long time in balancador wire while the wire / - is on the recpetor the airplane???
Thank you.
Goodnight inzKulozik, the batteries I use in my aero are two batteries of 2s LIFE (1700 and 3000 mha). I believe that the device mentioned by Mr. naum work on them. My question is if I can use this device with the model airplane running smoothly to the batteries and / or controls and ignition. The use would be to simulate a control panel. understand?
Still I am very grateful for the opinion.
This unit will read the voltage of each cell when plugged in. It will only check the voltage one time. If you have a battery that needs to be charged and you want to watch the voltage while charging it will stay at the original voltage that was read when you first plugged it in. I have two of these and the voltage is read and displayed and does not change after that. It is still a good item to check voltages of packs. But do not expect it to read voltages in real time it does not work that way.
Please remember that the voltage on the last cell is not always recognized or displayed. This means that the total voltage will not necessarily be correct. This was checked on three units and also on some other checkers as well.
I bought a batch of these when they were red in color. They worked perfectly. I wish new green units were made the same as the older red version. The green unit has problems reading the number six cell in the lot of that I purchased. Maybe they will fix that problem.
Yes, you can take it out only 1 cell, ok, charge with Nicd function, of you may change cell between to bad 3s Lipo into 1 new repaired ok too. Remember to check the C and mah, and for sure, less time / flight
It works fine with HobbyKing 1500mAH LiFe 3S 9.9v pack used in my tramsmitter, so you can use it for any Lixx cells with balancer connector. Only limitation is minimum of two and maximum of three cells.
I used it on LiPo and LiFe batts. Just plug it in the balance port and it will show you the voltage on every cell and the total voltage of the pack. And it's idiot proof - if you plug it in the wrong way, it will not be damaged, it just wont show anything on the display.
The battery ,monitor is very good. I checked battery with it today, it said 12.0V, my charger said the same. I would say it's precise to 0.2V.
I've tried to translate it.
Remember to credit if my answer was the best :)
Akumulator, monitor jest bardzo dobra. Sprawdzilem baterie z nim dzisiaj, to powiedzial, 12,0, moja ladowarka powiedzial to samo. Powiedzialbym, ze jest to precyzyjne, aby 0.2V.
Przyrzad laboratoryjny to nie jest, do monitorowania lipoli jest w zupelnosci wystarczajacy. nawet ladowarki nie podaja idealnie. Mam takie 3 i jestem bardzo zadowolony. POLECAM!!!!
Normalmente, pongo este sensor en el exterior del avión, que pasa justo en el interior del cable para ser conectado a la batería. Emite un tono cuando la batería llega a un voltaje bajo.
Mira... Normalmente vuelas, aterrizas y mides con éste monitor. Sí es posible dejarlo conectado, es buena idea...: Al conectarlo te muestra en el primer segundo el voltaje de la celda uno, al segundo segundo el voltaje de la celda 2.. y así.. y al final el voltaje total de la pila. Es pequeño, muy bien armado. Los números se muestran en color rojo. Buena idea para ponerlo fuera del avión.
I am planning on using this to display voltage in a device I am making. Can someone tell me the dimensions of the LCD and post a picture of one working for orientation? Thank you!
The LCD panel is 23 x 14. The numerals are 9mm high. The dots are at the bottom. Facing the front, when the pins are pointing to the left, numerals are upright and the bottom pin is the negative.
This unit is an essential tool if you use LIPO power and have taps on your cells. Works automatically on 2 - 6S and cannot be killed by reverse connection so is idiot proof.
Yes you can in theory but this monitor is designed for a 2S-6S balance port in which the Ground (-) and the Positive ( ) are on the outer most cables, so for a 1S you would have to connect the 1st and the 3rd pin on the monitor, which isn't a simple task with that 2nd pin in the middle. Hope this helps.
Once you establish the cell/s is low via battery monitor, what earthly use is this?... Do you then need to recharge the battery to ensure all cells are balanced?
Jay
You need to get your battery a little charge at least to see if the balance is ok, under a value ( I don't know wich ) you will see low battery, means you need to recharge it, once the battery voltage will e higher than 3.3 Volts* number of cells, you will see if they are well balanced or not
I use this on the field to check which batteries I have used and which not. Then it tells you an approximate value per each cell plus the total. It's not bad at all!
I use mine to check battery usage for flight time. i.e. set timer for 6 minutues land check battery and determine longest possible flight time available
there is a margin of error so I use this monitor after my 6 min flight to give me a good idea if the bat is done or if i can take off again for a minute or 2
I use mine with a standard charger just to insure that the levels are normal. That way, I bought a really cheap charger.
Also, the total helps keep track of when it gets too low to use. It also helps me keep track of which batteries are full without having to plug them in.
For my only two 3S lipos, mine displays "dsp" then .05, then around 6.7 three times, then 20.2. I've verified with a multimeter that the battery is only at 11.7 volts. I guess my battery monitor is bad?
Mine first displays dsp, then it will number each cell and display it's voltage: No.1 - Voltage, No.2 - Voltage, and then after all cells are read it will display All, and the total voltage. I remember I once plugged directly to a NiMH pack (not the balance port) and it displayed some weird voltage like so. If you have a balance charger, plug it on balance charge and check the voltage yourself. The monitor could be defective or who knows, the battery plug wired wrong?
You have the plug-in connector mis-aligned. With the device facing you as you read it, the lower left pin must be matched with the black wire that exits your LiPo's JST-XH connector.
Tressie, that's how I was using it. But I think I've figured out that it's because I'm using Polyquest batteries, which don't seem to have JST-XH connectors. It's black, empty, black, black, red. I think I can just remove the 1st black wire pin and move it to the empty space.
I have been using this for about 1 year and checking with my meter I find that it is more than accurate for any field use and very much easier to use than bringing your meter out just to check the balance and voltage on your cells. I will always have one in my field box.
I bought 10 of these a few months back. They worked good on smaller packs. The number 6 cell is way off on all of them. It scared me I thought my battery was way over charged. I only use them to check the battery before flying any way.
Lo uso siempre, la verdad que es una pieza muy útil si tienes muchas baterías y no tienes por que conectar el cargador. Así las mantengo todas siempre controladas.
attention si vous avez un problè*me avec hobby ne comptez pas sur la guarantie, j'ai reç*u un swift avec un servo dé*fectueux cela fait 3 mois que je les contacte pour qu'il me le remplace !!! ne pas achetez chez eux a fuir careful if you have a problem with hobby do not count on the warranty, I received a swift with a faulty servo that's three months that I contact them to replace it myself! not to buy a home escape
I have 3 of these.
The number 6 cell often doesn't give any value at all. This morning it was at around 3,95V but actual voltage was close to 4,2V like the other 5 cells.
IT DOESN'T NEED ANY SORT OF CALIBRATION.YOU JUST NEED TO PLUG IT INTO THE BATTERY PACK AND IT WILL SHOW FIRST INDIVIDUAL VOLTAGE OF EACH CELL THEN THE VOLTAGE OF WHOLE PACK:)
he/she/you doesn't need any calibration it is you only link him/it to the electric outlet of the lipo that where it is done the swinging of the cells and he will tell him/her the voltage of each individual cell and in the end the total of the voltage, ok!
Super, permet de voir la tension dans chaque élément un par un et la tension du pack. Tres pratique au terrain sa se glisse dans une poche, c'est tout petit.
attention si vous avez un probl?*me avec hobby ne comptez pas sur la guarantie, j'ai re?*u un swift avec un servo d?*fectueux cela fait 3 mois que je les contacte pour qu'il me le remplace !!! ne pas achetez chez eux a fuir careful if you have a problem with hobby do not count on the warranty, I received a swift with a faulty servo that's three months that I contact them to replace it myself! not to buy a home escape
A stated it monitors the cells, but leave it attached, hold the plane and run the motor to full power and look at the cell voltages. A weak cells voltage will be considerably below the others.
When you first plug in your balance plug it cycles threw all your individual cells to see how they are balanced then it will show you your total voltage.
attention si vous avez un probl?*me avec hobby ne comptez pas sur la guarantie, j'ai re?*u un swift avec un servo d?*fectueux cela fait 3 mois que je les contacte pour qu'il me le remplace !!! ne pas achetez chez eux a fuir careful if you have a problem with hobby do not count on the warranty, I received a swift with a faulty servo that's three months that I contact them to replace it myself! not to buy a home escape
Does Cell Meter show only initial voltage or show the real voltage when batteries are under load? I don't know if I see always the voltage of the cell when I connect the battery.
Only initial voltage and not so well, I got 4.13 unplugged and replugged 4.15... But for this price it's a great article just keep in mind it's not so accurate when using it.
I guess it shows the real voltage? It reads the current state of the cell, it doesn't matter if they are plugged in or not. The monitor does refresh constantly because I have used it to monitor my battery voltage on an FPV setup (I know, it was a very desperate measure...)
It shows what is called 'static voltage' - the battery voltage when it is sitting there doing nothing. This is usually fine for determining whether a LiPo pack is charged - 4.1~4.2v and yo're good to go. Voltage under load is a different beast, and needs inflight telemetry.
This shows the voltages of the battery. When you want to know the voltage with a load, you must put it into your plane or heli and connect it, then it will show volages with load, but be careful that props or rotors dont hurt you.
Does not add a load, so it shows the voltage at whatever condition you have the battery in at the time ... charging, loaded, no-load, etc. Intended mainly as a state of charge indication.
Battery monitor, Simple & easy to use! Have you every wondered if your batteries are charged or not? A perfect solution for when you're at the field and not sure if your battery is charged! It plugs into your battery balance plug and will quickly tell you the total voltage as well as each cells individual voltage. The connectors fit perfectly well with Turnigy Lipo's.
Important. This item is not accurate enough for precise cell balance checking. It is to be used to check battery ch
Every time it cycles (shows cell 1, cell 2, cell 3 then total cells) it updates the voltages, so you can use it to see how much your voltage drops down to under load, but it's not instant, you'd have to leave it at max throttle for a few seconds to get a reading from it.
Please award a credit :-)
It doesn`t tell somtimes right, I have Turnigy 3s lipo and 1cell is dead, I charge it to 8.4v like 2s lipo, but this battery monitor shows 1st.cell 6.32v 2nd.cell 0.00 3rd.cell 6.30 :D
Unfortunately it can't be calibrated. It is set from factory and some times the numbers are a bit off, but It can give you an overall idea of how the voltage is, but it won't be super super precise.
No calibration needed or possible. I have three of them now, one in my kids flight box, one in mine and one in my battery case. All of them are right on, maybe a .01 difference here and there, and in agreement with my charger & DVM.
Olá colega! Este monitor já vem calibrado de fábrica, pois até pode acontecer de dar uma pequena diferença, mas pelo meno menos terá uma ideia dos valores ficando assim mais difícil de danificar a sua bateria. Espero ter ajudado.
No, you do not need to calibrate. It is actually very easy to use. You just have to plug it in to your battery and depending how you align the conection you will be able to read any from 2 cell up to 6 cells.
it does not need any calibration. you just simply plug it into the balance plug on the battery and it will tell you the total battery voltage and the individual cell voltage.
Of course, remember to connect the balancing part of the battery. Do not try to use the ESC plug, especially if you have JST connector or some other that may look like it will fit with the monitor pins.
ive never calibrated mine and it works great. though i got a hyperion sentry now. which gives me much more info. but for basic cell voltage these are great
No, as the others said, you do not need to calibrate it.
You just connect it to the balance-cables of the battery and then it will display the cells voltage.
According to me its not really accurate, and i'd go for a a bit more expensive if i was to buy one today.
It can not be calibrated. It's not a precise measuring tool, it's mainly just for field testing how flat your batteries are, or checking if batteries are full or empty quickly and easily.
The only time this unit gives faulty readings is if it's hooked up to a battery with the voltages of cells 1 or 2 below 3V, this makes the display go dim, and the voltages read much higher than they really are.
Nope i have one of these got it out and tested all my battery's and works great accurate as well as long as you make sure you connect it the correct way
Your balance plug could be broken instead of the battery monitor, as it's very unlikely for it to be broken in such a way. Check with another 6S battery...and if it still doesn't read it, a pin or a tracing could be broken/shorted, check the PCB.
Try it on another pack* if same result its a bad monitor. Guess you could try support, but for $2 I'd just buy another and donate that one to a friend who isn't using 6 cells.
Same on mine* only cell 1 through 5 is measured and added up in the "all" voltage. Have used it on 3 different 6S batteries* last cell (at positive side) is not measured or added up in "all" voltage.
I have found with some monitors, the heatshrink it's sealed in comes up too far on the end pins, try cutting the heatshrink back a bit and see if it picks up the 6th cell.
Which voltage does it show after initial plug-in, total or individual cells first? I know it cycles through each cells voltage but which does it show first?
Starts with cell 1 (lead closest to ground) and works its way thru them. When it runs out of cell count, it displays total and then repeats.
Curiously, at least with mine, it flashes then goes blank for a second at connection before starting readout. Just long enough to make you think the connection is bad until you get used to it.
First it shows "disp" which means display check. Than as said, cell one from ground, two... and so on up to 6th. Nice to have, just ordred one more...:-)
Hello, did anybody found out what's that chip with erased description.
I'm thinking about reprogramming it to use it as a counter of electrical impulses (for calculating amount of spins I gave into the rubber in my P-30), but I'm unable to figure out whehter it's some MCU or just some ASIC.
Most people won't know a **** about that :/..It's very cheap so i don't know how much more you can get out of it. You are better off searching on other place for that info :/. Anyways, I do have this one, I there's something I can simply read off of it, let me know and I'll help you.
It is impossible to read the PN of mine. Chinese engineers like so much the microcontrollers from atmel and this one has 20 pins, maybe this info could be a start for you.
yes, it's impossible on the mine too. It doesn't seem like any Atmel I know. It has the VCC on pins 5 and 6 and GND on pin 16. I was unable to find any MCU in W-SOIC20 case with power on this pins. I was looking for Atmel, Microchip PIC and a few other. None of them did fit so far.
Anyway thanks for the information.
you could check the pins on a Freescale chip if it does not fit any atmel, what I would do is to check where the chips have ISP, connect to programmer and check if I get anything
Yes, the voltage of life batteries(3.3V) is close to voltage of lipo batteries(3.7) and this unit is able to measure. Remember that you need at least 2 cells to work, lipo or life.
hello there. you can use it for LiFe if the balance connector is the same that fit on this monitor, no problem.remember LiFe nominal voltage is 3.7 and not 3.7. regards
it is possible to show how you are feeling today. you can use it on your girlfriend too. you will know verytime how "high voltage" she is at the moment. :-P
i think he is talking about "Lithium Ferrite" (Li Fe) batteries.
and i haven't tried it but i think that if the battery have a balance plug then it will, because its simply measuring the voltage before and after the cells like then you balance the battery so i definitely think that it will work :)
I have seen people at our flying club with these on their helicopters. You can see the voltage if you fly close enough but it is a little hard to see while flying. It can be done. They do not have a memory so if you put it on your helicopter it needs to be in plain view and what you can see is what you get.
Yes, you can but it will drain a few more mA from your battery due the led display. If you want to see the battery voltage during the flight, probably you will need land the heli before the readings.
Yes certainly Jacki but it would drain power. I strongly DON'T recommend it because its main functioon is to check the battery voltage after every flight or run(if you're in racing R/C Cars). WHAT I WOULD RECOMMEND is a in-flight battery monitor that ONLY has a buzzer because it would not drain too much battery power from the battery itself. Regards,MrRCFlyyer
No need in connecting monitor for long time, it will be only discharging your battery by a small current. Use it before or after flying to know condition of your battery . If you nedd something what tell you that your battery is low when you are flying, just use battery monitor with buzzer.
Yes you can !! This device draws almost no current and will have no effect on your flying time !! I have one on my powered glider !! Works well in slow flypast to view my voltage. Remember your voltage drops during power on! To get an acurate reading you should cut your motor.
Yes you can. You are dealing with such a low power drain and these lithium ion batteries have so much power that it will make a very small change in the battery life. i would recommended to dis-connect it when you are storing the battery.
You can leave it connected *BUT* it will not continuously monitor the voltages, so it does you no good. If you plug it in and it reads, say, 3.85V and then you fly it around for five minutes, the monitor will still read 3.85V, even though you've used up lots of juice. You must un-plug it and re-plug it to update the readings.
the thing for that is www.link
they go in the plane and when ur lipo is going flat it screams:)this is for 3 cell you can get them for 1-6 cells hope this helps
I suggest you to install a low volt detector with bussy. Look at HK for this product. You will be safe on battery better than instaling this voltmeter as onboard system.
you can plug it in but i wouldnt have it plugged in all the time if you want to get the most run time out of your battery! and you know you want long running times
Yes it only works when you connect to a battery, and is connected using battery power. And you can connect any number of times that will not damage by reason of it.
Continuo dizendo que esta nao e a utilizacao correta para este produto, apesar da bateria drenar toda a sua capacidade, a tensao indicada permanece a primeira leitura, ou seja, a tensao da bateria diminui e a indicada no leitor continua a tensao inicial com bateria cheia. Utilize um alarme de tensao baixa, tao barato quanto este e vai funcionar para este fim.
Yes you can. The system can handle a total of 6 Lipo's thus it can handle 22.2V(flat lipo's) It will flash you a cell voltage and a total voltage. This reading should be the same as there is only one cell. Do you know how to connect it to your batery ?
I thought that this voltmeter measuring the voltage of each cell and then the compounded... I thought as measuring the voltage of each cell, there would be a very low rank (1V to 5V)... but if it is able to measure each cell to 13v or more, sure I could measure the car's battery. Is it so? Tnks...
HELLO FRIEND, THE CAR,******************** ultilize THE VOLTAGE OF 12 VOLTS BUT IS A CLOSE TO 40,000 AMPERAGE MILIANPER, IT WILL MELT THE ENTIRE BOARD IN YOUR HAND , DO NOT USE THIS IN AUTOMOTIVE BATTERY, HAS MANY RISKS, MADE TO MEASURE VOLTAGE BATTERY LIPO, NOT LEAD CHUMBO, TNKS ASWER
I tried to use it on a car battery. It simply doesn't work. Can't figure out to use it as a simple voltage indicator (12v). Any advise is very very welcome! If I measure total voltage it shows just above 8 volts and not the expected 12 volts...
I guess you could... just use the lower 2 pins.. the device should detect it as a 1 cell battery..
I use it with NiMH batteries straight into the plug.
well considering 1s is 7.4v then 2s is 11.4 etc then you would have to find the wiring out to make it seem as a 3s lipo hope it helps but yes volt meter gauge would be the way to go, ebay I picked one up for like $15
This battery monitor reads cell voltage in lipo battery's. It can not read 12 volts in one cell. You can buy a hobby box 12 volt battery checker if that is what you want.
1st and 4th pin would get voltage close enough (lipos are 4.2ea max* 4th pin would be 3 cells x 4.2v = 12.6) This would leave it seeing 0 for first two cells* likely reporting an error. You could use a volt divider resistor network to get around that ... like 1Kohm between 1-2* 2-3* 3-4. Up to you if worth the effort.
This battery monitor is excellent for use on the field. However it is not very accurate but will atleast give you a fair idea of the voltage of individual cells. It can be used upto 6 cell and has a good solid bright red display.
I would recommend it to every aeromodeller. You will not need to carry any digital multimeter etc to the field. Fits nicely in the pocket.
You can even let this monitor attached to the balance port of the battery and let it hang outside to get a reading while flying.
For the money, its absolutely worth it.
Cheers!!! Saurabh.
8 comments. Reply..
Overall Rating
Michael Daniell
likes
Value
UNRATED
Quality
UNRATED
86 thumbs up!
This unit is an essential tool if you use LIPO power and have taps on your cells. Works automatically on 2 - 6S and cannot be killed by reverse connection so is idiot proof.
The big value is that it will show each cell so you know what is really happening in your pack in real time.
I use it when flying and when testing batteries as it can show voltage under load.
Accuracy may not be to the 3rd decimal place but it is consistent and is as accurate as the other tools I use (within .1 of a volt which is all you need) and the voltage is consistent when compared with DMM and chargers.
As of May 2008 there is no better value item in this area. Buy one.
Michael
4 comments. Reply..
Overall Rating
DOCA-SP
2074 likes
Value
UNRATED
Quality
UNRATED
21 thumbs up!
Essencial na mala de todo aeromodelista. J comprei para revender varios e nunca tive problemas, atualmente melhor embalado que os primeiros que comprei. RECOMENDO
3 comments. Reply..
Overall Rating
Alex H
likes
Value
UNRATED
Quality
UNRATED
19 thumbs up!
I purchase a couple of these and the first one was faulty, I cycled a 2 cell pack just to make sure. The second one worked fine. These are a handy little item and fairly accurate, but as pointed out in the instructions individual cell voltage plus/-0.03V, the total pack voltage is spot on. I would have given a 5/5 except for the faulty one, buy 2 just to be safe still good value. QC needs lifting.
1 comment. Reply..
Overall Rating
Rene Kostolnik
likes
Value
UNRATED
Quality
UNRATED
17 thumbs up!
Good for quick measurements on field. Display is very bright. Shown voltage provides an indication of actual cell voltages. In the manual they say accuracy is 0.03V, but experience shows: don't rely on last decimal place. But all in all a good item at a good price.
Copyright 2012 Hextronik Limited.
The HobbyKing.com®, OrangeRx, Turnigy, Durafly, nano-tech and other brand logos and names are trademarks of hexTronik Limited.
All rights reserved
.jpg){kind=small}
