PL8 always showing high IR on last cell???

[dwazzer]

When I charge my packs on the PL8 with the parallel charge board, it is always showing the IR of the last cell to be much higher than the others???

is this a known issue? And if so, is there a fix?

Cheers, Dave

[choppaholic]

its the parallel charge board wires/soldering, mine always does that for cell 5 but if i use a different parallel board it goes away.

[iceuk]

Set the charger to XH wiring mode, it should read cells correctly then

[Manitoubrian]

When I charge my packs on the PL8 with the parallel charge board, it is always showing the IR of the last cell to be much higher than the others???

is this a known issue? And if so, is there a fix?

Cheers, Dave

Mine does the same, and some times if the board is disturbed while charging will announce an 'over voltage' and reset itself....

i would also also like to know if there is a fix for this.

Thanks

Brian

[milly0812]

Set the charger to XH wiring mode, it should read cells correctly then

+1. This is a common issue

[iceuk]

I told you the answer, change the wiring to JST-XH node wiring and update to the latest firmware, You will need the PC interface cable, running the charger in FMA mode is no good for your lipo's.

[zci_zr]

Hers is the E-mail conversation between John Grzan (The owner of LEO Energy Singapore) and myself regards with this issue:


the question:
"I have one concerns about the battery's IR, just wandering if you could help. I have charged all my battery via PowerLab8 V2 charger for a few times now, and I found out that IR on cell 6 is always higher that other cells (much more than 10% variation) on each individual of them. According to the CCS software, the IR variation should be within the 10%, therefore I would like to know if this is normal (I have attached a screen shot of CCS software, please refer to the attachment)."


Here is the reply:
"Well found

Everyone gets the same issue.
Powerlab has 1 small defect, that is IR measurements.

Due to the fact that it can do node only charging there are a few extra components inside the charger that鈥檒l always effect the first or last cell IR measurements. Your reading are normal for pl8."



Hope this will help you.

[Mark_T]

I don't rely on the PL8 for IR readings because of this.

In all other respects it is a great charger, just don't believe it if it says the first or last cell has a significantly different IR from the others.

[dwazzer]

Set the charger to XH wiring mode, it should read cells correctly then

You know what, I have had this issue before and had completely forgot about this setting...! Doh...!

thanks mate, all sorted I only changed it back to charge a battery individually that didn't fit on the parallel board.

cheers, Dave.

[dwazzer]

Oh, and it can be changed without the PC link cable too

All sorted now...perfect!

cheers, Dave