1641

1642

Ahhh, a “Round Tuit”. :wink:

1643

The XTAR 4 Dragon Plus is very nice and does 4 wire IR. The measurements while consistent, are higher than my YR1030

1644

Ah what the hell, count me in for 1
Thank You

1645

It’s weakness for me is that the Xtar Dragon VP4 Plus does not indicate battery voltage. My first one died after a few months of light use too…

1646

I want one!

1647

I am down for one of these.
Already have a Gyrfalcon44 and a Vapecell S4 but this seems very nice.

1648

Depending on price I would like to get one of these. I’m still using the Opus BT-C3100 v2.2 because it really made no sense to me to purchase anything like the MC3000 that has not been updated in so long that it does not support the 21700 protected battery at all. Seriously just riding on there fame after this many years instead of producing a new model.

1649

It’s really nice to see this coming back to life and that you, Bluesword, are back on your feet!!!

1650

I know, but I’m currently doing the 5050 3V LED thing as well as the high current 16mm switch, as well as writing a technical article.

After I’m done with all of that, it’ll be time again to restart this project.

1651

Please add me to the list for 1

1652

I think I finally found the differentiating feature that I could add to the charger…
https://www.researchgate.net/publication/345396678_Optimized_fast_charging_protocol_for_cylindrical_lithium-ion_battery_based_on_constant_incremental_capacity_algorithm

TLDR: Using this new charging technique, cycle life is increased tremendously, even at “just” 1C.

90% capacity retention after 1150 cycles vs 80% capacity retention after 800 cycles.

1653

Wow! Please put me down for one.

1654

I’m down for one!

1655

Now, the problem with the above method is that the algorithmic complexity makes it unpractical to implement on the kind of IC we’d use in our product.

That would mean we’d need to precompute a very large lookup table for it to work at all specified currents and internal resistance.

1656

Lucky for us, that is not a problem for a modern computer :smiley:

1657

I´m critical about Xtars skills in NiMH-charging, I think Dlyfull is a better choice. My T5 is overall so much better than my VC4SL

1658

That’s a good point.
As for lithium-ion charging, I’m still reviewing whether or not my fast charging method is feasible to implement in a micro-controller, as well as researching other similar fast charging methods.

1659

Hope it will not to expensive :wink:

How about the decreased lifetime if LiIon getting charged fast/to fast?

And I hope the new charger will come soon :slight_smile:

And I hope it will have a display which show states of all cells without hitting a button for every bay

1660

Please add me to the list!

Thank-you