I got 2 of the Opus chargers - one charges low, the other charges to bout 4.23V if you let it go til the end, just what I like. So, I use the high charge one all the time - it's my main charger. I think I did the mode on this one to raise the charge limit.
But.... I also got the SKYRC - wow! You actually set the charge limit voltage. Now I can control that limit - no more worries bout charging hi or low. Plus it beeps when a cell finishes charging! Plus a whole lot more features. It's pricey, but the best around. I've wasted probably more money on chargers than what this one costs.
The way the opus works on the charge test mode. The capacity it shows is the discharge mah. When krs charging it says charging when the cell is full it goes to discharge. Once discharged the final mah shows up like in the picture above. Then the charger says charge again because its recharging the cell again. But the final capacity from the discharge will stay up it won’t change even when done charging until the cell is removed this is how it works. I got the very similar 5300-5400 on all 4 of mine first batch cells. I guess I can run another test on them. They have some cycles on them now maybe 40-50 two married sets.
The Opus BT-C3100 can be opened to change from 4.2v to 4.35V or 3.6V on a small 3 position slider switch inside.
Beware however, as I ended up damaging the mini fan when I removed the back cover, as the Fan was partly glued in place (on Version 2.0), to be as quiet as possible. Howled once refitted!
I bought a new fan, now much quieter, and drilled a small slot (tip from another Member) in the bottom cover, so I can now change the setting, without any further dismantling being needed.
Why is that strange ?
Just there are flat top and button top batteries, this ones are flat top, if you need to connect in series buy a button top, or use a magnet, and you do not need to solder it, I do not see why you need to solder it, just put it and magnet will stand firmly, when you don’t need it, just remove…
We have talked about this in another thread, can’t remember which one; but some of the LiitoKala 26650’s will work in series. The flat top is tall enough to make it happen. No rhyme or reason to it though?? :person_facepalming:
I have 18 of them and roughly half of those will work in series. A couple of other guys reported similar results.
Yep, there is no button top, they do not produce it so if you want a button top go with Keeppower, Efest, Enerpower…
Magnet can slip ? Hmm, I think this is not possible or you have some bad magnets.
If you do not like magnets, apply a solder blob on the + end.
Possible, since there is Sanyo GA that it flat top, but + end is enought protruding that can be connected in series.
I wan’t to buy them, since I using KP and they are too expensive and I don’t have more money to buy KP again. I will order from the link that I provided that ‘’new’’ LK dark-gold, and I hope that they are genuine.
And since they are 4 years old ( most of all others ), there is confirmation of new version of cells from GB, I get answer from them, I suppose that they are genuine store.
. So, I use the high charge one all the time - it's my main charger. I think I did the mode on this one to raise the charge limit.
