I have 3x Sony VTC5 from some guy that try to replace this Sony in his Nikon camera.
Personally I think that this is soldered very bad and slovenly, but problems are next.
1 battery : won’t charge over 3.7V
2 battery : won’t charge at all readings are 0
3 battery : since he solder it in battery pack and charge it a couple of hours this battery with 0 V don’t get any current and that current go to battery 3 and battery 3 readins now are 4.59 V !
Look here marked first battery ( this is one that shows 0 V ) :
I’m not sure if it can been seen on the pic, but it is very little bloated on the - side compared to other batteries, it is not perfectly straight like others are.
Batteries are new, so I need advice from experienced people that try this many times.
What are the chanches that batteries are bad by default since he tell me that this with 0 was 0 before soldering, I doubt in it. Also this why wont charge above 3.7V…
I’m not sure how to check does this charger inside battery pack has protection from over charge and discharge.
What you thing which may cause this damages on batteries ?
It’s not clear to me exactly how you are using/charging the cells to get the symptoms you describe, but it looks to me like some or all of the cells are damaged beyond the point where you would want to use them.
Are you trying to charge each one individually? And were they connected in series or parallel?
I have some knowledge and Personally, I would not use any of them. Does not seem worth the risk. A battery that is “Bloated” a bit is NOT good!. Another that shows no voltage. VTC5 is NOT a protected battery so the “0” voltage reading can not be attributed to the protection tripping.
I will be interested in listening to what others have to say!
I would not touch those batteries, personally. I’d ditch them ASAP.
If one of those batteries is reading 4.56V, it is already overcharged and if you can do so safely, should be discharged back into normal range. Either way, I’d recycle them at this point given the strange readings and physical appearance of the cells.
He solder it in battery pack from Nikon camera, then after charging he check with DMM and it shows 0 for all 3, it need to show 11.1 V minimum since they are charged previous, so he measure each one separately, and get 0 on 1 battery, 4.59 V on 2 battery, and then he try to charge them on chagreg with one slot ( not in battery pack ), so battery with 0 wont move, battery with 3.7 V wont charge over 3.7 V… Connected in series.
@ other
It is clear to me that I need to to throw this and that they are not for use anymore. I wonder just what led to this damages ? And that charger in Nikon camera does he somehow damage batteries, or it is done in process of soldering or some other third way… ?
Which is why battery manufacturers warn against doing that.
Remember, inside the shell is a very thin fragile plastic membrane that keeps the chemicals from mixing.
Heat can damage that (so can crystal growth in the chemicals, if crystals poke holes in the separator membrane)
I’d say chop it in half with an ax, so it will burn out to never burn again.
Do this outside though…
Should be fun too.
(but maybe not the best advise…)
I suppose that is much better for battery and much lower stress temperature on it when you do in this way and solder on this nickel weldins strip instead on battery directly.
No, just turn out that way in the picture when I record a photo !
This is not first time he do this, also do this with some Samsung and Panasonic batteries earlier and one time with this same VTC 5 and all was ok, so there is no chance that he goes wrong with connecting the cells in proper way.
Cells are new, they are purchased and stay for about 2 months without charge ( when buy a capacity in them was about 3.5 - 3.7 V ), so I do not believe that they are damaged from standing since 2 months is not too long period and they were no empty, maybe I’m in wrong but I don’t think so.
I assume that they are damaged or in process of sondering, or the charger in that Nikon camera, or electronic are not ok, that pack look like this :
[quote=dekozn]
In this case, I use one of my very cheap lamps and put this overcharged VTC 5 in it, turn on mid mode, and leave it in my basement, so if something happens it will destroy my lamp which is 3 $. I don’t want to put it into my charger because I’m afraid to damage it.
You mean this last pic that I posted it ?
I did not say that is conected in series, I just ask for the way of connecting a batteries, is this way safer ( I don’t know how it is call in English ), than directly soldering on batteries…
Yes, that is right.
I found first pic on the internet just to show how it is look like, it is not original case… Don’t know need to check tomorrow.
Yeah, if you don’t have a charger that can discharge or don’t want to use it, putting it in a cheap disposable light is an option. The downside, though, of putting it in a light is that if the battery is damaged and goes nuclear the light will explode.
In my case, I’d go one further and leave the light outside in the backyard while it drains. That way, if something happens it is out in the open. You could even contain it a little more by surrounding it with cinder blocks (but not totally enclosed) if you wanted to be extra paranoid/cautious. I happen to have extra cinder blocks left over in my backyard from setting up a retaining wall.
Oh, I’m not that much paranoiac, move far away from people is enough for me, I discharge it about 3.7 V when I check, and tomorrow I will throw them.
Don’t know maybe try same process with new ones… I put 3 new to lii 500 and after charge is done, I check it with my DMM, and I have 3 different values one shows 3.18 V, one 3.17 V and one 3.16 V… Hmm, don’t know is this normal for VTC 5, other cells like Samsung, LG…, are about 4.19-4.22 when I check them after charging.
Ok thanks for the answer. It’s nice to know such things beforehand so I don’t have to start looking online for n answer if the situation presents itself.
I got a hobby charger so I can make long leads to discharge it at a safe distance without harming the charger. Putting it in closed FL is something I would not feel comfortable with.
