LiitoKala Lii-S1, successor of the revered Lii-100

Displaying the current value is as easy as reading the sense resistor voltage drop and displaying the corresponding I = Vsense / Rsense value, no big fuzz really. Just matter of a few extra lines of microcontroller code any widespread and cheap multimeter already has. Actual weighted per unit cost: negligible.

Cheers ^:)

There are really a whole bunch of chargers. What sets the Lii-100 apart from the rest is the occasional stupid low price with code. The display will simply increase cost, so I cannot imagine this charger being as cheap as the original, so it looses its primary advantage.
I really love a voltage display, but to me this is initially of interest if I charge multiple cells at once from one light to check if the cells have discharged evenly. So for a single cell this is of no interest.
Nevertheless, it is a good looking charger, and it still is cheap. Certainly will keep an eye on this one nevertheless. :sunglasses:

It is if you want to stop charging at, say, 3.6V for storage.

…and the cost of display?

Have a doubt it is measured value though, why else show the rounded up value of 0.5A, namely 0.5A?

So, if the display showing either 0.1A or 0.5A is all the benefit, then…

Voltage reading I find not as important as amps

That combined with automatic stopping of charging would make sense, otherwise…

…yeah, and the power bank thing on Lii-100 tends to stop working in some circumstances anyway

Just sent the following email to these fellows:

We'll know soon.

Cheers ̿̿̿̿ ̿̿ ̿̿ ̿'̿'\̵͇̿̿\з= ( ▀ ͜͞ʖ▀) =ε/̵͇̿̿/’̿’̿ ̿ ̿̿ ̿̿ ̿̿

Uh… oh… we need a coupon code… a significant one at that. :slight_smile: I am not paying more than $2.99 for it.

I don’t see a NiMH display, but the description does mention NiMH support. Weird.

So…
Instead of fixing relatively high 100mAh for NiMH they remove support altogether?
Instead of fixing power bank function they remove it?

Instead of that we get (useless?) display

Wow

Hope above proves wrong though :slight_smile:

But if it is not, then this is not Lii-100 relacement :slight_smile:

I misread. Description does mention NiMH support, but there appears to be no NiMH indicator light on the display.

My 100B (the one without power bank function) actually does not overcharge cells like the 100 does. I wonder if it’s the power bank circuitry that’s to blame somehow. Maybe this S1 will not overcharge because it has no power bank function?

The display features indicators for lithium chemistries: this is termination voltage adjustment. There's no charging parameter or algorithm ambiguity for Ni-MH thence no need for an indicator.

The powerbank function may be a bit tricky with the rail and contact resistances getting in the way.

Cheers

Sure it looks nice, but what’s the use of it?
I just put my cells in a charger and that’s it. I’m not going to watch the numbers on the charger for several hours.
What I would like is time remaining until 100%

No Ni-mh charging?

Yes there is.

I think they fixed the over charging of the 100. I can’t remember if I’ve tested all three, but at least the one I tested terminates at 4.18V.

The one I received last month overcharges.

… Then it’s a cheap charger? If there is variance resulting in some samples over charging… I think I’ll re-test all three of mine soon.

My home Lii units pump up to these voltages when set to 4.2V li-ion:

  • Lii-100 Mk1: 4.22V.
  • Lii-202: 4.14 and 4.16V.

Furthermore, my Lii-202 fills up Ni-MH cells significantly more than the old Lii-100 Mk1.

Cheers :-)

^ Do you think final voltage is also dependent on type of cell and internal resistance?