Did I screw up? First charge with PL6

[GooberRC]

So I just got done with my first charge on my shiny new PL6 and disturbingly, all cells went to 4.208V! I used the "High Power Accurate" preset from the library. The only change I made was to drop the charge current from 10.0A to 9.9A to match Hyperion's recommendation for the first few charges on my G3 4S 35C 3300mah pack.

Here is some info from the Termination Tab in CCS:

Termination Mode: Current C/? (Lithium)
Reduce FB 50%: No Voltage Fallback
C/? Termination: C/20
Manual A. Setting: No Manual Termination
Require Bal. Done: Yes
Require All Chg. V.
C.V. Timeout: 30 Min

And from the Charge Tab:

Charge Amps: 9.90A
Increment 5mA: No
Charge Voltage: 4.200V
Conv. Frequency: 125Khz
Cold Weather T. 50*F (10*C)
Cold Weather V. 100mV
F. Avg. Past 1min: No


Any idea what happened?

[Tim Marks]

Originally Posted by GooberRC

So I just got done with my first charge on my shiny new PL6 and disturbingly, all cells went to 4.208V! I used the "High Power Accurate" preset from the library. The only change I made was to drop the charge current from 10.0A to 9.9A to match Hyperion's recommendation for the first few charges on my G3 4S 35C 3300mah pack.

Here is some info from the Termination Tab in CCS:

Termination Mode: Current C/? (Lithium)
Reduce FB 50%: No Voltage Fallback
C/? Termination: C/20
Manual A. Setting: No Manual Termination
Require Bal. Done: Yes
Require All Chg. V.
C.V. Timeout: 30 Min

And from the Charge Tab:

Charge Amps: 9.90A
Increment 5mA: No
Charge Voltage: 4.200V
Conv. Frequency: 125Khz
Cold Weather T. 50*F (10*C)
Cold Weather V. 100mV
F. Avg. Past 1min: No


Any idea what happened?

Hi:

This is absolutely normal. The cell voltages always sag after charge ends. They will settle down closer to 4.200V soon after you remove the pack from the PL. This extra 8 mV will not damage your batteries in any way; however, if it concerns you, you can use the Long Life preset (which will charge to 4.100V) or use the Charge Control Software to modify the charge voltage of any preset to put it exactly where you like to see it.

Hope this helps!

Tim Marks

[GooberRC]

Thanks a lot for the after-hours reply Tim. This is good news. I'll play with the voltage settings just to play it safe