Nitecore tm06s battery voltage indicator

[Dubripper]

Hi everyone, my indicator light consistently ready a full 2 volts less than what my smart charger indicates. And it claims to be accurate to plus or minus .01 volts.. Is there any way to fix this ? And is it normal?

 

[Timothybil]

Hi everyone, my indicator light consistently ready a full 2 volts less than what my smart charger indicates. And it claims to be accurate to plus or minus .01 volts.. Is there any way to fix this ? And is it normal?

We obviously need a third opinion here. If you don't already have one, buy or borrow a good Digital Volt Meter and check the voltage on each cell. This should tell you which is off, the TM06S or the charger. Let us know what all the readings are from all three sources and we can go from there.

 

[Str8stroke]

Came here to say what Timothybil said. But thought I would add:

Also, are you using protected cells? Have you tested this with a different battery? What battery are you exactly using? ex: AW, IMR?
FWIW: I have seen counterfeit batteries freak out chargers and meters.

 

[Dubripper]

I am using nitecore 18650 2400 mah protected cells. They were bought from a nitecore dealer on Amazon called Andrew and Amanda. They were in the plastic cases when they arrived. And I will buy the 3400 mah batteries from nitecore when I can afford it. So I will test the voltage on the batteries tonight and get back to you

 

[el soluna]

Came here to say what Str8stroke said and quoted...
Also go to nitecore website and check up anti-counterfeit code on the battery packages...

 

[Dubripper]

It says 4.4 dcv on my multimeter. Fresh off the charger. It's a d4 nitecore charger

 

[Dubripper]

I don't actually have the packages anymore. Is the code on the battery?

 

[NoNotAgain]

It says 4.4 dcv on my multimeter. Fresh off the charger. It's a d4 nitecore charger

At 4.4 volts, something is wrong. Can you test an alkaline battery and report the voltage?

4.4 volts is .2 volts over the maximum charge for a Nitecore battery. Also, Nitecore doesn't make a 2400 mAH battery to the best of my knowledge.


Should be 2300, 2600, 3100 or 3400 mAH,

 

[Dubripper]

My bad it was 2300. But it was at 4.4. And I checked the authenticity of the charger and it's legit. So test a brand new aaa?

 

[Dubripper]

Well this is bad. I did the magnet test on my nitecore charger and the negative pole attracts the magnet, but not the positive. According to nitecore and magnetic attraction means i received a counterfeit charger, I am beyond angry. And will be reporting the incident. I can only assume the batteries are counterfeit to.

 

[Dubripper]

But it also says to only check to positive.. Ugh that's stressful, I spent allot of money on this setup and I dont even know if it's legitimate

 

[NoNotAgain]

If you're feeling lucky, you could remove the cover and see if the board looks like this

Atleast you'd know the charger was legit.

I think your VOM isn't very accurate as most D4 chargers charge to the low side of 4.2 volts.

If you're using an I4 charger, use teh advanced search function and see if HKJ, has pictures of his review sample.

 

[Dubripper]

I also scanned the 2d code on the charger box and I checked out. Is that sufficient? I will take it apart if needed but id rather not. I will check a brand new nine volt with the volt meter later

 

[Dubripper]

I checked a nine volt battery and it read 10.68 volts

 

[Dubripper]

I checked a nine volt battery and it read 10.68 volts

 

[Timothybil]

That's about right when not under load. Most 9v batteries are really six AAAA cells inside. The no-load voltage for a fresh AAAA, like AAA & AA, is around 1.6v-1.7v.
You neglected to tell us what the TM06S and the charger said the voltage was.

 

[NoNotAgain]

That's about right when not under load. Most 9v batteries are really six AAAA cells inside. The no-load voltage for a fresh AAAA, like AAA & AA, is around 1.6v-1.7v.
You neglected to tell us what the TM06S and the charger said the voltage was.

Tim,

I just checked two different 9 volt batteries, one a Duracell alkaline and the second an Energizer lithium.

The lithium reads 9.73 volts, the alkaline reads 9.47.

My meter is a Fluke 87V and was recently calibrated by the calibration house I use for my equipment. Checked with my second Fluke 87 III and got 9.73 on the lithium and 9.46 on the alkaline.

 

[Timothybil]

So I seem to be talking off the top of my head again. Go ahead, let me make a fool of myself. Sounds like maybe the DVM he is using is a little off.
What happens to a DVM's readings when the internal cells are getting close to done? Since they are the source of the reference voltage it has to do something to the readings.

 

[NoNotAgain]

Can't say every meter acts the same way, but the 87 series Flukes usually start dimming the LCD display then flashes. I've had one run down to the point of flashing and when the readings were rechecked later in the day were what was recorded earlier.

You peeked my interest since it had been a while since I'd checked voltage on a 9 volt battery.

There have numerous threads on Nitecore chargers under charging lithium ion batteries, but not one I could find about overcharging.

The OP indicated his DVM measured 4.4 volts right off the charger. His DVM also indicated 10.68 volts on the 9 volt cell. In this case the vote goes to the charger being correct in termination verses his meter.

Happy New Year.

 

[Dubripper]

The tm06s claims 4 volts flat off of the charger every time. And the charger claims 4.2. I opened the charger and did find all nitecore capacitors. That leaves either the batteries or the flashlight