Can Anyone Identify These Batteries?

[darkzero]

I have some cells that read 18650S and 6060936P07. I was told that the 18650S is a Li-Ion and the 6060936P07 is a NiMh. Judging by the weights of them I believe they are. I'm assuming the 18650S is 3.6v but the other one I don't know. I can't find anything searching regarding the P07. Anyone know?

I'd like to make sure before trying to charge it. Also, what do I need to use to charge the 18650S? Anything special besides the charger that I need to know about when charging them?

Any help would be greatly appreciated.
thanks

 

[paulr]

The 18650S is a li ion cell, I believe; you need a charger designed for charging those, e.g. Maha C777 or whatever the current version is. http://www.thomas-distributing.com sells those.

I don't know about the other cell. It actually looks like it might be a multi-cell pack. I'd say charge it up for a few minutes at a few mA, i.e. charge from a 12 volt supply through a 1k resistor. Then measure the voltage across it.

 

[darkzero]

Thanks Paul! I sometimes hear of a overcharge protection cicuit or was it over-discharge to use with Li-Ions. Are there any precautions I should worry about? Are there any cheaper solutions to charging these? I don't want to fork out that much cash for a C777, I'm not even sure these cells are good. Sorry but I never had Li-Ions before and know nothing about them.

 

[danielo_d]

[ QUOTE ]
darkzero said:
... Sorry but I never had Li-Ions before and know nothing about them.

[/ QUOTE ]

Hey Darkzero!
I, too, am new to the Li-Ion's. Evil Lithium Man's thread covers alot of info regarding them. Take a gander when you get the chance. I added it to my fav threads for reference. Alot of good info.
Good Luck!
Danno

 

[batterystation]

Check the voltage on that green cell. LG and Toshiba both use a green Li-Ion cell that looks very similar to that in the past. We used to put them in the fat Nokia 6100 batteries. The voltage will give it away. If in the 3v range it is Ion. 1v range probably NiMH. Be VERY careful charging a Li-Ion cell in the "raw". They can be very unforgiving and rather volatile if shorted. They have a tendency to go BOOM if adequately shorted.

 

[darkzero]

Thanks Danielo, I'll go through that when I get the time.


[ QUOTE ]
batterystation said:
Check the voltage on that green cell. LG and Toshiba both use a green Li-Ion cell that looks very similar to that in the past. We used to put them in the fat Nokia 6100 batteries. The voltage will give it away. If in the 3v range it is Ion. 1v range probably NiMH. Be VERY careful charging a Li-Ion cell in the "raw". They can be very unforgiving and rather volatile if shorted. They have a tendency to go BOOM if adequately shorted.

[/ QUOTE ]

That's the thing, these cells have been sitting for a while (I'm assuming, I bought them for cheap) and they read only some number of milli-volts. That's why I'm not even sure if they are good or not and don't want to just try sticking the green one in my charger without knowing what type of cell or voltage it is. Since they barely read anything, do you think they are trash? I got 8 of the blue ones and 9 of the greens for $5. If they are bad, oh well.

I'm assuming the green is a NiMh cause it's noticeably heavier than the blue battery. I was also told by the seller that they are NiMhs. They're both very similar in size but the blue cell weighs 39.1g and the green cell weighs 50.4g.


Thanks for the help.

 

[snakebite]

the p07 is a nimh.
i wound up with some and they are 5/4 a at
about 3.5 ah
it will probably be ok after a few cycles to wake up.
the li-ion is toast if it is below 2v.

 

[darkzero]

Thanks snakebite! So these p07s are definitely 1.5v then, correct?

The Li-Ions read 75mv IIRC, so I guess these are trash. There's nothing I can do to them?

 

[batterystation]

What snakebite said. An Ion that low is a gonner. Also once you have put just a small static charge on the green cell, the voltage should come up and give you an indication of its health but should wake up as stated above.