Charging Cells seperate

[backsida]

Hi,
I read that is is better all 4-5 cycle to charge the Cell's of a Lipo separately.
Is this right and if yes - how to do this with a TP1010 and 210V?
Thanks and regards Uwe.

[ghtracey]

I don't think this is correct. The cells are all connected together, if you discharge one, the others will attempt to charge it. Where did you read this?

Some batteries need to be broken in, yes, read the thread below this one for a discussion about that.

[backsida]

I don't think this is correct. The cells are all connected together, if you discharge one, the others will attempt to charge it. Where did you read this?

Some batteries need to be broken in, yes, read the thread below this one for a discussion about that.
Hi ghtracey, thanks for your answer.
I read that in the German speaking RC Newsgroup.
The guy says definitely that you should charge the cells separate so that you can see if one
take less mAh in than the others, so you can see if one is not good anymore.

Thanks and regards Uwe.

[ghtracey]

If you charge with a balancer, the balancer can tell you the voltages of each cell, one will be lower before the charge if it discharges more. The only time you would want to charge one seperately is if it was too low to charge and you wanted to slowly bring it back up to the same level as the rest of the pack.
I could be wrong, maybe someone with a little more knowledge can chime in.

[backsida]

Ok, thanks.
So now back to my orginal question. How I do this (seperate cell charging) with a TP1010?
I guess I have to make my self some charging cables that fit to the balancing plug?
One for the minus and one for the cell I like to charge?

Thanks and regards, Uwe.

[ghtracey]

Ok, thanks.
So now back to my orginal question. How I do this (seperate cell charging) with a TP1010?
I guess I have to make my self some charging cables that fit to the balancing plug?
One for the minus and one for the cell I like to charge?

Thanks and regards, Uwe.

Close but not quite, you need to make a cable that goes to the +/- of that one cell. The - should be the + of the cell before it in the pack. This pic is from the BC6 Manual but it will show what I mean. You have to pic the two wires that a voltmeter shows as the low cell.

Also, I've read that if you are just trying to bring it back up to level with the rest of the pack, don't charge it at 1C, charge at a lower amperage like 1/10C. There was a thread about this not very long ago, I'll see if I can link it.

[ghtracey]

Read this thread, it has some good info on charging only one cell in a pack.

http://helifreak.com/showthread.php?t=48848&highlight=low+cell+voltage

[Common Sense RC]

You can use the balance charger to charge one cell individually, but you will need to find which one needs to be charged. To do this I recomend an adapter such as the DVM 2 Pins available in the accessories section of our website that adapts balancing pins to a volt meter. This way you do not run the risk of shorting the pack while using the voltmeter to find the low cell.

Another, and probably easier method would be to get a balancer or balance charger.

Ryan Lefevre
www.CommonSenseRC.com

[backsida]

Hello Common Sense,
thanks for your comment.
Unfortunately, you nick name have not much to do with the post you wrote. ;)


...how to do this with a TP1010 and 210V?

Is my English that bad, so that it is difficult to understand what I mean?

I like to know if it make sence and how to charge cells seperatly with a TP1010 charger
in comination with a 210V Balancer.
This equipment I have. I also have soldering eqipment and a volt meter but I guess I don't need
the volt meter because the TP1010 in combination with the 210V Balancer and the data link
cable shows me the 'V' of each cell.

Thanks and regards Uwe.

[backsida]

Read this thread, it has some good info on charging only one cell in a pack.
http://helifreak.com/showthread.php?t=48848&highlight=low+cell+voltage
Hi Ghtracey,
thanks for that link, that's helped a lot.

Thanks and regards, Uwe.