HobbyKing Online R/C Hobby Store : Turnigy 2-3 Cell Lipoly Balance/Charger

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8/6/2010
karoly (84%)
hello! I bought 5 pieces about this charger, and 2 don't workig.what they do: one isn'n charge the the batteryes, only the two red led lighting, and one green flashing. I measured the output, and they are good...the others didn' do nothing, and the output voltages are 4.19V (1) 4.19V (2) and 7,4V (3). The first led didn't light, but the others were red. Can someone tell me how can I repair it?

8/5/2010
stuman1995 (78%)
soooo this charges though the 2 white plug ins on the end of it?? im new to lipo... does it discharge?

stretch81 (12%)
no. thats what your model is for, happy flying

Lindsay 22 (78%)
Li-po batterys have a charge plug (white one), and a discharge plug (red black wires) these go into the model. A li-po has a number of cells, so if you had a 3 cell, the white plug would have 4 wires to it. If you had a 2 cell it would have 3 wires to the white plug.

7/27/2010
Alan (76%)
These are cheap and short life .I bought 2,lasted about 1 year, then stop charging

7/5/2010
Gian_C (47%)
Connecting the source (12V) and all 3 LEDs are green (from the manual it is not correct). If I try to charge the LiPo (not fully charged) the A and B become red and C - green. May by someone can explain such behaviour?

I_Gotts_Ta_Fly (63%)
What happens when battery is full/finished charging? Does LED C become red, or do all LED's become green when battery is full? If LED's all turn green at the end, you might have the old version. It seems for the later versions, the LED's all turn red when finished, according to some people.

I_Gotts_Ta_Fly (63%)
Can someone scan and post the manual in the "FILES" section for this unit? It should be the one with the "new" behavior, where the LED A turns red when powered, then B goes red when Battery is plugged in, and C goes red when finished. Or any other versions OTHER THAN the one where each LED's indicate status of each cells independently.

Gian_C (47%)
When plugged to the source (12V) - all LEDs are green. When I plug the charged battery to the charger - all LEDs are also green. If I leave the battery connected to the charger but disconnect 12V and connect the 12V again A and B LEDs are red, C is green. I suppose mine charger shouldn't be old, because I have just recieved it. I suppose mine is just not working properly.

I_Gotts_Ta_Fly (63%)
It sounds like you have the old version (which is better IMO). If you have a volt meter, you can simply measure each of the cells. If one of the cells is about 4.2V, then that one may not charge and remains green, even with the second method you mentioned. Another thing you can try is to discharge the battery until below 4V/cell. Then try charging. You should get all red LED's regardless of method. If you still get 2 red and 1 green, see if the battery is getting charged after few minutes, by checking the voltages/cell. They should all be rising in voltage. If the cells are charging, then monitor it and let it charge. Don't let the voltage go above 4.2V/cell, though. If one cell is not charging, then you can (if you're comfortable with it) open it up and look for obvious solder issues.

Gian_C (47%)
I have checked if three cells are balancing. So I have a situation - if I plug in normally - 3 LEDs are green. If I connect the battery first and plug to 12V - A and B - red and C - green. The voltage per cell is : A - 4,09* B - 4,08, C - 3,87. And with time the voltage on A and B increases, but C is constantly 3,87. Tried to check the solder issues but didn't find anything catching the eye. May be some one has info how to solve the problem?

I_Gotts_Ta_Fly (63%)
It sounds like "C" is not working. A and B are acting as they should. C may never turn red. Assuming that the Control Chip (VM7205, if that's what's in there) is not defective, carefully check the following: Compare the voltages on the three VM7205 chips, especially pins 8, 2 and 4. Since "C" is not working, one of the devices should be different from the others. Pin 8 should be about 5V. Pin2 should be close to about 30 to 60% of what's on pin 8. Pin 4 should be the battery voltage. The other pins depend on the charge state. If any of these three pins are off, re-check solder and connections carefully again, following the copper traces on the board from the suspect pin(s). All solder joints should be shiny/smooth and not dull/crusty gray. Try to see if you can finish charging. Keep monitoring the voltages, though. You may, at least, have a 2-cell charger.

Chayanin (42%)
when the charger is powered, it turn all green. when you put battery on charge, it turn red. Two red light for two cell battery, three red light for three cell battery. You have to wait untill all the light turn green again, so all the call are full charged.

Gian_C (47%)
Yes, this is how it should work. Mine is simply not charging the 3rd cell in 3S battery. With 2S it is working correctly. Couldn't understand where is the VM7205 chip and find out the problem. So I simply have 2S charger instead of 3S. Hope others don't have such problems!

6/28/2010
Janis (63%)
will it work with this one? - http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=9496

I_Gotts_Ta_Fly (63%)
Yes...

Benjamin (63%)
Yes the charger will work with that battery however charge times would be really slow. You are better off looking for a higher amp (output amp) charger. A good one is the hobbyking charger ***********unitedhobbies****/UNITEDHOBBIES/store/uh_viewItem.asp?idProduct=11060&Product_Name=HobbyKing_ECO6_50W_5A_Balancer/Charger_w/_accessories

5/23/2010
david in japan (-16%)
hey people, can i use this to charge a .48 amp 3s and 0.8amp 3s lipo? thanks. david dr50376272 * gmail****

I_Gotts_Ta_Fly (63%)
Did you mean to say 0.48AHrs and 0.8AHrs for your battery capacities? If so, the answer would be, yes you can. The 0.48Ahr batt would charge marginally at 1C and as mentioned elsewhere, only go to higher charge rate if you're comfortable.

onner (40%)
ok. But beware of the lipo 480mha not hot! The charge of 800mha well.

speed freek (80%)
If you mean 480mah 3s lipo or 800mah 3s lipo this little charger is perfect for it. I just charged a 4000mah lipo battery with this little guy for approx. 6 hrs

Sensi (48%)
this charger is set to one charge rate. you can charge a battery down to 800mah but i would not try to charge a batt with a lower mah rating

weberschi (52%)
I think you mean 3s batterys at 480ma and 800ma respectively, so the answer is yes, you got aproximately 300ma per cell in 3s mode, but i recommend to charge lipos at slow charge to increase battery life.

Chayanin (42%)
Yes, David you can charge 0.8Ah 3S1P Li-Po, but I DO NOT recomend to charge 0.48Ah pack.

3/2/2010
olddig (46%)
will this Turnegy 2/3 Li Po bal/charger charge LiFePo4's, please?

Sebastian (40%)
No it wont

sellman (63%)
iam not recomend this,very slow charge ,and in the third charge makes noise,i sto using it.better prefer more quality charger from hk.

weberschi (52%)
No, Lifepo4 has nominal voltage of 3.3v per cell, and this charger uses nominal lipo voltage 3.7v.

2/20/2010
manfredo (30%)
I have received the TURNIGY-5011, I have connected it of agreement the instructions that it accompanies him, when connecting the source of 12 voltios, the 3 LEDs A,B and C, these they put on in red, without still to connect battery, when connecting a battery 3S or 2S, the LEDs doesn't change color neither blinking.

you can inform me what it is happening, it will be damaged the component

Best Regards

I_Gotts_Ta_Fly (63%)
Try measuring the voltages at the output ports of the charger by measuring any 2 adjacent(next to each other) pins. I believe you should read 4.5V to 5V or so without the battery connected. This is just something I observed on mine. That says the power is getting to the output section of the charger, at least.

If you have the know-how, check to see if you're getting charge current to the battery, when connected to the charger. If no current, then bad charger**assuming the battery is good. If you have current, it should be something like 500mA. Then it is charging. If it's charging, you may not be able to tell when the charging is done (if it even stops at all).

If this is too much for you, then a simpler test is to just measure the battery voltage (at the main connectors, not the balance port) before connecting to the charger and when it's charging. The batt voltage should be slightly higher when charging. For example, battery reads 11.00V(not charging) and 11.07V when charging. Again, if it is charging, it may not indicate that it is finished. LED's may never turn green.

Sensi (48%)
i tossed my instructions but it might be that your batt is below 3.0 volts a cell. if you check your batt and it is not below 3 volts per cell then you probably have a damaged charger.

I_Gotts_Ta_Fly (63%)
If the battery is not too far below 3V, the charger will go into pre-charge and charge normally with LED's red. IF the battery is below 0.8V (typical), then the LED will flash red.

2/15/2010
Harsha (50%)
Can this be used to charge 1s 220mah lipo?

I_Gotts_Ta_Fly (63%)
Rule-of-thumb used to be to charge at 1C, but we're starting to see charge rates up to 5C.

I personally wouldn't, but if you're comfortable with it, this will charge at about 2C. You'll have to make a connector/adaptor to mate with the 2S/3S ports, though.

Harsha (50%)
Yes. I tried and it was charging fine. Only issue is the charging stops at 4.12V (other chargers usually charge upto 4.20V)

sterlingl (29%)
this charger can only be used to charge 2 & 3 cell batteries only

I_Gotts_Ta_Fly (63%)
Not completely true. At least with the revision that I have, I can charge a single cell with an appropriate connector. You can also do 4S, 5S, and 6S if you use two chargers and an appropriate connector.

dido41987 (56%)
No it carges only 2 or 3s lipos. You can try with a phone charger if the battery is so small

weberschi (52%)
No, this will make your battery fry quickly, at 1s charge it can give 1200mah max.

I_Gotts_Ta_Fly (63%)
weberschi: Does your charger actually varies charge rate depending on number of cells or are you just going by the manual? The two that I have doesn't, they charge at constant rate of 500ma regardless of cell count. This is simply due to the design of the charger controllers in the units. I also would like to know how you arrived at 1.2A for single-cell charging. However, I do agree that there supposedly are multiple versions of these units with possibly major differences.

Chayanin (42%)
Yes, it will fully charge your pack in about 2 hours.

2/13/2010
ministeve2003 (82%)
Has anyone checked their charged battery with another better charger after charging with these, I'd like to know if it "fully" charges the battery...

I ordered 2 of these, and will test it as soon as they come in...

Sensi (48%)
it is a balancing charger and will stop charging when the battery reaches 4.20 volts per cell, which is a fully charged battery. what your mah will be depends on your battery condition and how you treat it.

weberschi (52%)
Yes, this fully charges a battery, around 4.2v in my cells.

11/7/2009
I_Gotts_Ta_Fly (63%)
Here is a link to a site that talks about the issues/questions that are commonly asked about this charger. Alot of it were already mentioned in this forum.

It only talks about one version of this charger, though.

Here's the link:
*******doisanchi.2kmegs****/turnigy5011.html

I_Gotts_Ta_Fly (63%)
Ok, lets try this again**it filtered out the dot com...the link again:
doisanchi.2kmegs dot com/turnigy5011.html

I_Gotts_Ta_Fly (63%)
Disregard the link above. Read this one:
frozenburritosnightly dot com/turnigy5011.html

Of course, replace the "dot" with a period a "." and no spaces.

10/9/2009
sungwca (39%)
I bought a few of these at 2 different time, it come with 2 different set of instructions, perhaps there are different version of the charger out there.

But it all looks and works the same. When power up, led A lights up red. When plug in a battery, led B lights up red. When its finished, led B turns off and led C lights up green.

I_Gotts_Ta_Fly (63%)
Does one of the instructions explain the LED indicators? Can it charge a single cell(given an adapter)? The old version can charge a single cell and the indicator works.

sungwca (39%)
The 'correct' instruction did mention that LED A(Power), B(Charging) & C(Full). It also state can charge 1 cell, I have not test that yet but I don't think the LED will indicate individual cell status.

I_Gotts_Ta_Fly (63%)
There is a rumor that more than 2 versions exists for this Turnigy 5011 model. The one you have may be another rev. I don't like the new setup, but I'm ordering one, hopefully soon, just to see what is up with the new setup.

9/25/2009
doganaksu (56%)
My 1750 mah 3s lipo batery is charging in 4 hour.This charger realy 1.2 A?

I_Gotts_Ta_Fly (63%)
That sounds about right. Go back and read post 13. It charges at fixed 500mA.

9/1/2009
Felipe (30%)
yep it works!!!

8/31/2009
Felipe (30%)
trying tomorrow, i'll be able to tell you guys if it's enough!
thinking that the 3s is about 11.1 v and it's a simple charger without displays or anything like that it gona be allright!!!

Hopefully it arrives tomorrow!
Awesome!!!

8/30/2009
Felipe (30%)
i have a power supply which says : 12v output around 5a but checking in the voltimeter it goes around: 11.7/11.8/11.9
and keep floating on it, it's enough power for the charger?! cheers

I_Gotts_Ta_Fly (63%)
The controller chip inside has an under-voltage-lock-out feature and supposed to shut down at a certain low voltage threshold. I have not tried this myself though.

worldedit (67%)
I dont know how much voltage the charger needs but 11.7 is more than enough. The thing is that the charger runs more efficient if supply voltage is higher and pack voltage. Chargins is faster on a 14 or 15V power supply.

I_Gotts_Ta_Fly (63%)
Actually, the charger has a fixed charge rate of 500mA, so the charge time won't change.

Sensi (48%)
if it is not enough then it won't turn on

8/11/2009
david in japan (-16%)
mine simply justs sits on charge all day ! and never see a flashing light !

I_Gotts_Ta_Fly (63%)
LED's don't "flash." They're red while charging. Green when finished.

I_Gotts_Ta_Fly (63%)
It does flash when a cell is faulty, though.

8/7/2009
worldedit (67%)
I think a got a different version of the charger. When i power it ledA lights up red. When i plug in a battery ledB lights up red. When its finished ledB turns of and ledC lights up green. I thought each led is supposed to indicate the state of one of the cells.

I_Gotts_Ta_Fly (63%)
Is that the only one you have? It just might be bad**at least the LED set up. The LED scheme doesn't make sense at all. Does it charge ok otherwise?

worldedit (67%)
I got 5 of them, they all work the same. It even says so in the manual.

I_Gotts_Ta_Fly (63%)
That's really strange. Does that make sense to you? I don't remember the manual stating that LED behavior. It almost sounds as if the balance connector is mixed up. I even charged a single-cell with the expected LED behavior**RED while charging and GREEN when finished (on one LED only). Do you have this exact model charger pictured above? Also, does you batteries charge ok?

7/28/2009
Michael (56%)
What does it mean when the "B" LED flashes red when I plug in the battery? It's been on the charger for about ten minutes now and it's still flashing red. What should I do?

Thanks for the help,
-Mike-

worldedit (67%)
Maybe one of your cells is damaged. I recommend checken the voltage.

I_Gotts_Ta_Fly (63%)
If it does the same thing for any battery you plug in, then the charger is likely bad.

Sensi (48%)
check the voltage of your cells to make sure that they are between 3 - 4.2

6/15/2009
Dean (40%)
Will the IMAX 120 240 Volt 5 amp power supply work with this to charge the 2200 mAH 20C zippy batteries

I_Gotts_Ta_Fly (63%)
This one is overkill for one charger. You can power several chargers with this power supply.

4/22/2009
neo1234 (32%)
Hi, can I use wall adapter od DC12V and 500mA? I will only charg at 500mA or can I get more A?

rooster (70%)
To HC: Please make an affordable 12v 1200 (at least 1000ma) psupply available to your customers. Thank you.

Sensi (48%)
i have a regulated digital power supply and when i use the charger to charge at the max it only draws about4-6 ma

I_Gotts_Ta_Fly (63%)
*Sensi: 4-6ma is not right for the input current to the charger. The output of the charger is about 6W for 3S at about 12V and 0.5A. That means the DC input should be 6W. So, with 12VDC, the input current to the charger is about 500mA.

Xonipher (81%)
I accidently plugged in the battery then i connected the charger to the power supply. Now the "c" LED Light is red even when its not plugged in. And when i do PLug in the Lipo (2s) the B and C LED turns red, not orange, like it says in the instruction manual. WHAT SHOULD I DO? this is my third charger!!!!

I_Gotts_Ta_Fly (63%)
Take a fully charged battery. Power up the charger, then connect that battery. All LED's should be green. Otherwise, the charger may be bad.

If you connect the batt first, then the power, you'll get red LED's corresponding to the batt cells.

See post #13.

Joel (67%)
I just got this charger and read the manual.On the manual it states it can charge 1 cell(orange flashing) 2 cells (steady orange) and 3 cells (red/green). Am I correct?

One more question:

When I check my 3S pack individual cells are at 4.13V when I connect to this charger it just stays green?

From what I read on the review it is suppose to charge all the way to 4.2V/cell

Appreciate some feedback

I_Gotts_Ta_Fly (63%)
I'm not sure about the Orange color indicator. I don't think it has that mode. I tried charging just one cell and it's still red and green.

Regarding your second question, the charger will not start charging until the batt voltage goes below about 4.07V.

For this case, connect the battery first to the charger, then the power.

See end of Post #13 for more info.

stripe157 (94%)
I believe it will be safe on larger packs (just slow), but how about my 2s Rhino 360s 800mA is over 2C for these small packs. Will is always charge these packs at over 2C?

stripe157 (94%)
Charges at .5A, this is 1.4C on a 360mAh lipo. I'm not worried. I'd use the good charger for a slow charge to storage voltage anyway.

Sensi (48%)
yes and you can charge some of these batts at 2c but i would never do it myself

francisco luis (60%)
I have that product.
The point is that when I connect the battery 2s stay in green LEDs and no load.
solution that I have
thanks

I_Gotts_Ta_Fly (63%)
Your battery may be already above 4.075V/cell. In that case, plug the battery in first, then the 12V power. This will force the charger into CHARGE mode.

Alexandre (75%)
Can i use this safely together with the 800mah $4.95 on a 13.8v 3 amp constant power supply? (5amp surge)

To charge rhino 1050's on the 800mah charger and rhino 1250's on this charger.

Thanks in advance and merry christmas, Alex

I_Gotts_Ta_Fly (63%)
I don't see why not. I haven't measured it, but according to calculations, the charger requires about 10W of power for the input. That means about 700mA per charger, with your supply. If you have 2, then you need 1.4A at the input.

I don't know about the $4.95 unit(Turnigy, I assume?), but I'm not convinced that it's 800ma output. I get the feeling the 2 may be similar on the inside, even the charge rate. We'll never know until someone gets one and measures it.

Besides, your supply should have a fuse. If it blows you have too much load.

Alexandre (75%)
Hi, it has an input fuse.
And i have the 4.95 unit, and it charges my 1050 rather quickly.

marco (56%)
Hi if i buy a 2s 500mah lipo has is a zippy lipo will this charger charge th battery safely and not burn my house down?

I_Gotts_Ta_Fly (63%)
From what I understand, you usually charge at 1C, so that would be 500mA. That would be the smallest batteries you'd want to charge with these chargers, though.

However, you should always be monitoring when charging Lipo's and charge them in a safe place where, in case of a mishap, no harm is done(other than to the battery).

Joel (67%)
Are the three LED lights independent indicator of the charging status of each cell? (i.e. Charging a 3S lipo pack if one cell reached 4.2v will it turn green while the other cells are still Red/still charging? or is it like E-sky once a one cell reach 4.2V it automatically switch all off or turn all green LED at the same time?)

I_Gotts_Ta_Fly (63%)
The LED's are independent. All cells are being charged independently.

Joel (67%)
Thanks.

I_Gotts_Ta_Fly (63%)
Here is what I'm finding out about these units.

Actually, it charges at 500mA nominal during the main "current-mode" phase. It has three separate and isolated charge circuitry with a flyback regulator(as far as I could tell) front end to step down the 12V input to about 4.88V.

As mentioned elsewhere, it uses the VM7502 Battery Charger controller.

The charge current veriations between the cells are only due to the component tolerance and the VM7205's refernce voltage used for the current limit.

There is no circuitry to control charge current based on number of cells.

The only other thing that may affect the charging current might be if the supply to the charger is not capable of the required power, or that the Flyback regulator is weak such that IT hits the max current when 3 cells are connected.

Voltage Variations between cells after charging are due to the VM7502's Battery voltage sense threshold of about 4.2V nom. They have a range from 4.168V to 4.232V.

As far as I can tell, the three outputs are floating and they are stacked one on top of the other. So, I don't see why you can't stack multiple of these units to charge 6-cell batts(or any number of cells, for that matter). You just need the make an appropriate splitter** ie: 6 pin con. to two 3 pin con.

Alain (88%)
USE CAUTION doing that.

Check first if the current input groung is connected to the negative wire of the charger output plug. If it is you will have to use 2 differents power supplies to drive the 2 chargers.

I_Gotts_Ta_Fly (63%)
Good point and it should be advised. Don't take my word for it.

Those who are thinking of doing this make sure the input supply negative is NOT connected to the negative pin of the output (mine is not connected when ohmed out in both dirctions).

I_Gotts_Ta_Fly (63%)
One thing I forgot about these things. They have no protection circuits. The charger simply uses a series transistor to control the current to the battery, so if the trasistor shorts, the battery cell sees about 4.9V and if you don't catch it right away, your Lipo's may catch fire.

This is one thing I'm affraid of. They may last for ever, but how do I know?

I_Gotts_Ta_Fly (63%)
The instruction mentions that you connect the power first, then connect the battery. In this case, the charging will start if the battery is less than the "Re-Charge" voltage of about 4.07V. So, if you have a slightly discharged batts, they may not charge.

If you connect the battery first, then the power, the charging process will start if the battery is less than the final voltage of about 4.2V. This is not documented in the instructions, I think. I tried this method and it worked fine. This is actually mentioned in the datasheet for the charger controller IC, VM7502.

worldedit (67%)
I measured resistance between - input and black wire output. Its 85 Ohm. So i wouldnt recomment charging a 6s pack with 2 chargers simultaniously.

I_Gotts_Ta_Fly (63%)
Worldedit: Yours must be either bad or a different version,(if that exists). I have 2 and both are isolated between input and output completely, which, from briefly looking at the design, it should be.

Fl_red61 (78%)
How is thic charger different from the "Turnigy balancer & Charger 2S-3S" (Hobby City part number "Turnigy-3S")?

Eric1180 (-53%)
That is what i was wondering.

Fred (56%)
does this charger come with charging leads? If no, what can I buy for charging leads?
Fred

bothal3 (98%)
You do not need leads. The pack plug in directly, using the balance plug.

vanderlei (80%)
Carrying Otimo voce places the battery reserves and forgets forty minutes inside the same loads a 2200 battery of amp.

kajiyama (32%)
Spec. shows Auto cut off and auto current rate
Can this charge for 200mAh 2Cel �� 3Cel Lipo?

wjbite (57%)
If you do you will be charging at a 2 1/2 time C !!!
Not good - will shorten life of battery AND maybe cause fire.
The current limit is not adjustable, it is fixed at 1/2 amp and the current will taper off to 50 ma as the battery reaches the end of the charge cycle.
450 mah is the smallest I would use.

wjbite (57%)
Please see this thread for details:
*******myhobbycity****/showthread.php?t=1214

wjbite (57%)
Here is my blog entry that tells all about this nifty little and cheap charger.
*******myhobbycity****/blog.php?b=356

marco (56%)
Hi if i buy a 2s 500mah lipo has is a zippy lipo will this charger charge th battery safely and not burn my house down?

wjbite (57%)
Most balancing chargers will only work on batteries over a certain capacity (mah) because smaller batteries will be charged at to large of a current (over 1C). What is the smallest battery that I may safely charge with this charger? Thanks - Walt

wjbite (57%)
Okay - no answer was given so I ordered two and bench tested them. Look for my analysis in the REVIEWS tab, above - the short answer is 1000 mah batteries.

wjbite (57%)
Whoops! I was WRONG!
The answer in 500mah - this charger is a FIXED 1/2 amp charger - I will post a blog about it later.
BUT I still like it :)

wjbite (57%)
Here is my blog entry that tells all about this nifty little and cheap charger.
*******myhobbycity****/blog.php?b=356

wjbite (57%)
HEY they through away all of the blogs.
My info is lost !!!
If anyone copied it to their computer, please send me e-mail - I would like to get a copy.

afeno (59%)
Another strange behavior: Sometimes, I disconnect the pack (3S) when all the lights are in RED (charging). If I connect the pack straight forward again, all lights are green. Is it normal?

Thanks for any advice.
I don�t want to burn my house because of overcharge.

Regards,
Alfredo.

I_Gotts_Ta_Fly (63%)
For this one, I wonder if the charger entered the "the-battery-is-alreay-charged" state? I haven't tried this, but does this happen when the battery is just starting to charge? I noticed this only when the battery is near full. That's why I ask.

I_Gotts_Ta_Fly (63%)
Yeah, this is normal. If you remove the battery close to finish (above 4.075V/cell) and plug it back in, it will not charge because the battery needs to be below the re-charge voltage of 4.075V/cell.

afeno (59%)
When I connect the pack to the charger and THEN I connect the 12V DC into the charger, all leds became red even if the pack is fully charged.
I don�t know if this is a normal behavior when the pack is connected first or my charger is faulty.

Does anybody else have this issue? Is it normal?

I need an advice. I don�t want to burn my house because of overcharge.

I_Gotts_Ta_Fly (63%)
Mine does the same thing. Same goes for your second question below.

For the first case, the charger may be going into some fault mode or that it got latched into a confused state.

You should plug the charger in first and let it settle. Then plug in the battery.

mattycoops (80%)
It says clearly in the instructions, it does a test when turned on, so should be left till lights are all green before plugging in battery. From memory, it said this is more important when first used?

I_Gotts_Ta_Fly (63%)
This is actually normal. If the battery is plugged in before the power, the charger goes immediately into charge mode and starts charging. If the battery is already charged, the LED's will turn green quickly. This is one of the undocumented features for these units. It's great for topping off a battery that's been slightly discharged, because it wouldn't charge unless the voltage falls below 4.075V/cell if you just apply power before connecting the battery.

pricer (60%)
Good charger,best price !

Mitchell (56%)
Asked 28mar08.Does it fully charge all the cells like the HXT8080 does?Or is it like the ESky EK2-0851? The EK2-0851 stops charging when the highest voltage cell reaches 4.2V (the cutoff voltage). It does not balance.

rokeras (98%)
The load of each cell is made separately and ends well as separate as they reach 4.2 v, there is no better balanced, simple and effective

(Jo) (44%)
could you please provide the included detailed instruction sheet as download, would be very helpfull!!! PLEASE!

Eric1180 (-53%)
There are like no buttons. It is like screwing in a light bulb.

minitel (73%)
How does "auto current rate" work?

I_Gotts_Ta_Fly (63%)
Not really...see below at 13th post.

lyclyc (59%)
cheap... wondering how balance is the cell after charge?

Igor (97%)
Balance during the charge!

Eric1180 (-53%)
No he is asking how accurately is the charge.

William (64%)
I have 3 of these ... I've looked inside and found that I have 2 different models, but the circuits are very similar. The charger has a voltage regulator circuit and 3 separate charging circuits. There is a LED indicator for each charging circuit which is red while that cell is charging and green when charging is complete.
On mine, I use a 12 Volt, 1.25 Amp power supply (maximum input) each circuit charges it's cell to about 4.18/4.19 Volts. I have found that charging a "dead" 2200 Lightmax takes about 3 or 4 hours ...
hope this helps ... (too much info??)

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