18650 ICharger 3.6 or 3.7v (4.1 or 4.2v)

Hi everyone,
My name is Anthony and im new to the forum, i have many flashlights
Im seeking some advice regarding Icharger units either 106 or 206 im looking at

Although i notice on the Li-ion setting they have a standard charge or 3.6v and cut off or 4.1v Rather than 3.7v and 4.2v
Is this and issue? or can it be adjusted on the unit?

I noticed the Li-Po setting on the chargers is 3.7v (4.2v cut off) Should i just use that setting?

Any help is appreciated
Cheers
Anthony.

anthacdc said:

I noticed the Li-Po setting on the chargers is 3.7v (4.2v cut off) Should i just use that setting?

Click to expand...

Exactly.
The iCharger has a configuration menu where you can adjust the charge voltage for the different chemistries, if you want, but it is easier to just use LiPo.

HKJ said:

Exactly.
The iCharger has a configuration menu where you can adjust the charge voltage for the different chemistries, if you want, but it is easier to just use LiPo.

Click to expand...

Okay cool so using the LiPo setting for Li-Ion wont harm 3.7v cells Li-Ion?

I love the user selectable parameters of my Turnigy Accucell 8150, it allows you to select exactly what you want. I noticed all the "cradle/consumer" drop-in chargers for my 18650, 16350, 14500, 10440, & 10180 push them to 4.2V. I was reading on BatteryUniversity (http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries) that the little 0.1V extra could be detrimental to my 3.6V cells, and that undercharging them by just that little bit won't hurt and could actually be beneficial to their service life.

Then, I downloaded the .pdf specifications for Panasonic NCR18650B (http://industrial.panasonic.com/lecs/www-data/pdf2/ACA4000/ACA4000CE417.pdf), which says their nominal voltage is 3.6V, but to charge them up to 4.2V at a maximum rate of 1625mA, which is half of their minimum rated capacity of 3250mAh. (I think that means a rate of 0.5C, but I'm not sure)

I'm going to play it safe and hopefully extend their lives by only charging them up to 98% instead of maxing them out at 4.2V. For this, I'm using the Li-Ion setting on my T/A 8150, which defaults to 3.6V / 4.10V. The Li-Po setting defaults to 3.7V / 4.20V, but I'm just going to leave that alone.

Apparently, my Intellicharger I-4 and XTAR VC2 go the full 100% at 4.2V.