kaptain_zero wrote:Just a quick thought, Sid. Do you have a multimeter kicking around? I'd be curious to see the actual charge voltage coming out of that charger, particularly just before the disconnect error message. To me it sounds like the protection circuit on the cell is kicking in due to excessive voltage. Then again, these cheap batteries/protection circuits don't have the best reputation for quality control, though I have not run across too many bad ones. I've had 2 bad circuits and one bad cell (this was a premium one no less) so it can happen and this is over about 30 - 40 odd lithium cells of varying sizes. I use 10440, 14500, 17670, 18650 and RCR123a... to name a few.
A separate Digital Multi Meter aka DMM should show what's going on. I know the charger measures voltage, but we need a "second opinion" from another meter as things are behaving strangely. If the DMM reads markedly different, something is up and a third, known to be accurate, DMM, should be called in to settle the issue of "Is it the Charger or the Cells or.....?"
Looking at your picture, the balance plug is wired correctly, but I cannot vouch for your soldering as I can't really see it that well.
Regards
Christian
The voltages I gave after each cell triggered the Connection Break error (4.1v and 4.09v) was taken by my new DMM and are after a few minutes off the charger. Admittedly, it is only a cheap DMM.
The charger was showing 4.13v a minute or two before it cut out, as I was keeping a written log. It was the same voltage for both cells. Unfortunately, when I do get the connection error, I can no longer access the info screen to see what the charger's voltage readings were precisely at cut-out.
This morning after resting overnight and and without using the Tx, the voltages are 4.08 on each cell according to my DMM.