AW RCR123 Li-Ion peaking at 4.10 volts

[RTTR]

I am not sure if it has to do with the internal protection circuit in the AW cells or my Multi-Plex 6S Lipo charger (with Li-Ion charge capability)

But this is the first time trying to charge Li-Ion it, and they are peaking at 4.1v instead of the 4.2v they should be.

I have no problem charging large RC aircraft Lithium Polymer batteries on it which I have been for 2 years.

Anyone have any insight on this?

 

[TooManyGizmos]

Is your AWrcr123 an OLD cell ?

Will it charge to 4.20 on another charger ?

Max charge lowers as they age.
.

 

[RTTR]

It's the newest style one from 4Sevens, the black wrapper, silver sticker with red stripe.

I don't have another charger to test. But I'm considering charging it on LiPo mode, 3.7v norm, 4.2 peak

 

[45/70]

RTTR, are you charging the cells with the "LiIo" setting, or the "LiPo" setting? The "LiIo" setting will charge the cells to ~4.10 Volts. The "LiPo" setting will charge the cells to ~4.20 Volts.

Modern LiCo cells can be charged with the "LiPo" setting when using a hobby charger. If you wish to extend the cycle life of the cells, the "LiIo" setting works well. The only disadvantage is the cells will only be charged to about 90% capacity.

Dave

 

[RTTR]

RTTR, are you charging the cells with the "LiIo" setting, or the "LiPo" setting? The "LiIo" setting will charge the cells to ~4.10 Volts. The "LiPo" setting will charge the cells to ~4.20 Volts.

Modern LiCo cells can be charged with the "LiPo" setting when using a hobby charger. If you wish to extend the cycle life of the cells, the "LiIo" setting works well. The only disadvantage is the cells will only be charged to about 90% capacity.

Dave

Thanks that clears up my confusion.

 

[jasonck08]

The protection circuit of most protected Li-on cells, kicks in at 4.26v. So I doubt that the protection circuit is limiting you.

Charging to 4.1v may greatly increase the cells life, but will yield about 10% less capacity.