Review request for HKJ [Chargers]

LiitoKala Lii-S8

https://de.gearbest.com/chargers/pp_009476570194.html

LiitoKala Lii-600

https://de.gearbest.com/chargers/pp_009145924534.html

Have you reviewed the EBL D cell capable chargers?

EBL906 & 9008?

To measure internal resistance of a battery, voltage variation is measured between two points while the current flow changes. Resistance is then calculated by Ohm's law, R = ΔV / ΔI.

The “inconsistent” battery internal resistance reading of the Lii-500 is mainly a consequence of where the voltage is read. The voltage sensing points used are somewhere in the circuit board, close to the rails. Hence, the resistance being measured is that of the rail plus contacts plus battery, and not just the battery. The resistance of rails can vary wildly as they are repositioned, and is of similar order of magnitude to that of batteries; to add more fuel to the fire the very contacts also play a role. It also matters to know how the measurement is done: the charger injects a small current in the rails on startup (≈0.2A according to the graph below from HKJ's Lii-500 test; I was under the impression that it was a higher current). This means that if batteries are close to fully charged, i.e. if battery voltage is high enough, the resistance reading will straight fail because the charger cannot raise rail voltage above maximum charge voltage.

All I can say in this regard is that it is best to have than not. The resistance measurement is helpful to know if your rail contacts are clean and your battery properly settled in the rail. If my Lii-500 reads high on startup I disconnect, wiggle the batteries in the rails and power on again. Do this a few times to find the lowest rail readings.

Don't put too much hope in the resistance reading of the Lii-600. To really make a difference the voltage sensing points must be located right at the battery terminals. This implies a proper battery holder (like this or that).

I see you are linking to http://www.liito-kala.com/. That's not the only LiitoKala website, though. Check out http://liitokala.com.cn/, I remember this other site was up and running long ago, when Henrik reviewed the original PLB OEM wrapped INR26650-50A cells.

Aaaah! Crazy China. This people needs to see the light, they're legally and culturally outdated. They need to awaken, they need to discern between good and evil. Its crazy what they do in many aspects. North Korea too, by the way.

Hi HKJ!
Do you plan to test the new Liitokola Li600?
Would be interested to know how ist performs. The specs looks very promising.

Not at the current time, but maybe later.

:frowning:
I will wait for a review before ordering.
Thx anyway.

Looking forward for your review Liitokala Li600 review HKJ :wink:

Hi HKJ, are there any new information/plans on your review of the Liitokala Lii600?

HKJ, have you ever reviewed any of these budget wall charger brands? (even if not exact model, would be good to know if any are sketchy or good brands in general)

- Elecife

- Choetech

- Ugreen - i think this one is generally a good brand and have seen some reviews of other models from them by you that said they were OK/Good (but not great)

Some of them: yes.
Check this list: https://lygte-info.dk/info/ChargerIndex%20UK.html

hiii HKJ, any updates on Lii-S6 ?

Please if someday you want, review the Lii-600

Thanks in advance!

Hello HKJ,
really appreciate all the reviews you do on batteries (especially NiMH) and chargers, they’re great and really thorough!

I’d like to propose the IKEA STENKOL charger for review.
From description it appears to have two current sources (8hrs for 4 batteries, 4hrs for 2) and each slot is terminated individually.
Its main termination method seems to be 0dV/dt, with -dV/dt, temperature and timer for backup termination.
Also it claims to terminate on a full charge, so they may have left out trickle charge, which would be good for LSD cells as you know.
Another feature it claims to have is “rejection of defective cells”, which could mean minimum battery voltage or maximum internal resistance.
Especially internal resistance limit would be interesting to test since this would limit how often the laddas they sell can be recharged. This data could be guesstimated from AAcycler’s data.

I think for such a cheap and easy to use charger, it’s fairly interesting even for us who care about our NiMH cells, so it might be worth a review!

Kind regards,
def_nvar

Suggestion for review (thank you very much in advance):

Astrolux VC04

https://www.banggood.com/Astrolux-VC04-Micro-Type-C-2A-Quick-Charge-Li-ion-Ni-MH-Battery-Charger-Current-Optional-USB-Charger-For-18650-26650-21700-AA-AAA-Battery-p-1752461.html

https://budgetlightforum.com/t/-/63856

Here’s the fixed link:
banggood.com/Astrolux-VC04-Micro-Type-C-2A-Quick-Charge-Li-ion-Ni-MH-Battery-Charger-Current-Optional-USB-Charger-For-18650-26650-21700-AA-AAA-Battery-p-1752461.html

[S\$280.78 30% OFF]NOKOSER TC-X-Pro Smart Battery Charger 6-Slot Auto-Polarity Detect for 26650 21700 18650 14500 20700 16340 A AA AAA Flashlight from Lights & Lighting on banggood
https://banggood.app.link/UeLzRz4aGib

New charger. Seems cool but the price is crazy

Look to be the same as
https://www.amazon.com/EBL-Universal-Discharge-Functions-Rechargeable/dp/B09B9HFXJ7

I’d like to suggest the LiitoKala Lii-S8 for a review:
banggood.com/LiitoKala-Lii-S8-8-Slots-LCD-Display-9V-Quick-Charger-Smart-Battery-Charger-for-Li-ion-LiFePO4-Ni-MH-Ni-Cd-9V-21700-20700-26650-18650-RCR123-18700-p-1780562.html

I’ve urged Olight (on their FB thread) to send one of these to HJK:

It’s a magnetic charger for their proprietary batteries that have both + and - contacts on the same end