For some reason Items I purchase from Washington/Oregon area get to me faster than from anywhere else
I forgot to mention the other night—I usually charge my cells first —let them rest—then I do a charge test—the charger tops them off first before the discharge as normal—I don’t like charging for 2 hours then discharging for another 2 + hours and again charging for 2+ more hours—seems abusive to me
Even California[Illumns] will get here in 2 days for First class mail!
I agree, that is exactly what I did as I wait for delivery. Otherwise the CHARGE/TEST can take 8 to 10 hours!
The only time I don’t do that is for a First time capacity test with new batteries where I let the Opus do the whole cycle. The New batteries are usually ~ 3.60 when I get them.
I could be wrong, but I think you are somewhat misunderstanding what Chops is saying. Maybe a little more abuse, but I take it as time saving.
MINE FAILED when I put the batteries in at a mostly charged state and then the Opus discharged, then tried to charge them @ 1amp but reset instead!
INSTEAD of Charging/discharging and charging for the CHARGE/TEST. It save s time if the batteries are mostly charged or at rest after charging then put them in for Charge/Test. that way you save ~ 3 hours.
The Opus is still discharging and charging so you can get the capacity. My failures have been shortly after discharge when the batteries are @ 2.80v and they begin charging again.I believe the INITIAL charge has nothing to do with failure shortly after the battery is discharged.
Again, where mine failed is what HKJ talked about where the charger spikes in output because it needs that surge of energy when the batteries are ALL @ 2.80v. I think he said it jumps to ~ 6 amps for 0.03 of a second!! He elaborated on that last Friday.
EDIT: Besides ALL of that the Opus should be able to do ALL Three stages without an issue!
Jon from Liionwholesale who sold it to me has about 5 of them running constantly doing capacity tests!
OK, I did misunderstand how you were doing it. I thought you were letting the OPUS do the whole thing…… CHARGING almost empty cells - then DISCHARGING for Capacity - then going back into CHARGE Mode
My bad, I’ve got it now. You and chops728 are on the same “program”. It is me that is different as most of the time I did it as described above.
Soooooo…… that tells me that part has nothing to do with the problem…… :+1:
I also need to say!!! That I have done it both ways[no wise cracks I LOVE woman!].
I already mentioned that when I get Brand new batteries I make sure the Opus charges it from the beginning. Older batteries for the FIRST test I may have them charged, but no more than 4.10v so the opus can top it off to where it is accurate for ALL batteries and ALL capacity tests in the Opus.
However,the recent failures the batteries have all been mostly charged and then the Opus tops it off, goes to discharge and then charge.
The mail use to come b/w 1 and 2pm,now after about 3 or 4 mailman changes over the years, It comes b/w 3 and 5! A Flashaholics nightmare! :person_facepalming:
I wanted to get this test done b/4 8 pm when I go on my nightly hike w/ Capo. Does not look like that will happen as it takes about 4 hours,it will take 1 hour just to top the batteries off!
ok,everything is in order!! Came 10 minutes ago,batteries charged in 2 minutes and went into discharge mode,It should be done ~ 7:45!
I will give a report when it’s done! I really hope this is the solution!
I bought 2 Power supplies in case one did not work!!!,the first one did not leave Calif. yet and I ordered that 12 hours before this one that came from Portland, Oregon!
