With dedicated adapters I do all my charger tests with it and do the 5000 volt test on the adapter.
With usb adapters I usual use my own power supply and do a abridged usb adapter test on the usb adapter.
With dedicated adapters I do all my charger tests with it and do the 5000 volt test on the adapter.
With usb adapters I usual use my own power supply and do a abridged usb adapter test on the usb adapter.
Poster I wish I were in your position. I certainly would try those Sanyoās you told us about, except that I hardly use the 18650ās that I have now since I mostly use an L2M for EDC. Maybe if I buy a Trustfire R-J12 or 16 and need those 18650ās I will change my mind. I already have 8 18650ās from Dell pulls and have another 2 battery packs that will give me 12 more. (I plan on opening these last two this weekend. They are red 18650ās. (canāt figure out which brand they are but work great so far.) Maybe Iām finally getting the cure for flashaholicism. :>)
i go through 30-40 a week for various lights where i need them
and i guess i am willing to pay for not have to charge as many cells all the time
with most of my pulls (mostly 2200-2600mAh) my new 3400mAh NCR18650BF run 2x as long
maybe i need to try NEW 2600mAh cells
NEW Samsung ICR18650-26F 2600mAh are ~$2.10 for 50pcs
NEW Sanyo NCR18650BF 3400mAh are ~$3.86 for 20pc
or does anyone know what Laptops packs have the highest rated cells inside
do any use 3000mAh or higher the most i have seen are 2800mAh
Excellent post HKJ!
I got this charger about month ago. This time there were no any reviews so had to test and open the device.
What I like:
What I donāt like:
What I did:
Can add some pictures of circuit if someoneās intrestedā¦
seb,
I can see that you really know what you are talking about - Welcome to the BLF!
I do not know what I am talking about:-)
I just ordered this charger yesterday, and am hoping for the best.
Thank you so much for your post, and I do hope that you will stay with us!
-Chuck
Thanks chuckhof
Hard to find a good 4-bay universal charger these days but I guess Lii-500 is not bad at all.
With little tweaking it becomes even better. For those who use it mostly for Li-Ion.
i would love to see what you did to this otherwise great charger
BTW is this the only under ~$25 charger that will do 1amp for each bank
+1ā¦ !
Not that I would know what I am looking at - I just want him to continue posting!
Seems like a great guy!
Thanks!
-Chuck
Original pics:
1kOhm resistor for LCD transistor Q35 (sorry for bad solderingā¦):
Original coils:
Bigger coils:
Original, without heatsink:
Heatsink (It touches only schotty diodes underneath, with thermal paste. Diodes seen below doesnāt heat much):
If you want pictures bigger rez. please tell me, didnāt know how big forum allowsā¦
Awesome may i ask while i am handy can you do the before and after pics or circle the spot you added to and what you did there
when i get my next 2 in i will do these mods to them
since i just ordered them can you show i parts list as i probably do not have all the parts and i will have time to order them
thanks again nice work
Well, Iāll better try to explain
Nice mod! What are the blue capacitors for?
Why in stock form it has the space but no components?
They are for some filtering I guess. Lii-260 has these electrolytes parallelled with little ceramic capacitors.
Lii-500 has only ceramic ones. Maybe manufacturer found that output voltage ripple is low enough and left them out.
Or in some versions they still do exist? Wonder if someone could measure with and withoutā¦
There are many reasons to leave cicuit partly āunpopulatedā. Main reason is to cut costs if some components are not critical
and can be left out. This is very common approach in cheap electronics.
aliexpress uses escrow for buyer protection . works similar to paypay but anyone having credit card can use it.
now regarding it available for cheap.
i doubt this item..because my experience with aliexpress tells me if something is very cheap then its normal price (like in this case) then its a fake order.. the seller gives fake tracking id..
happened 4 times for me ..
I got mine a few weeks ago the charger works fine for 18650s i bought it mainly for laptop pulls which i use to build battery packs when using the internal resistance at which range shows cells in still in good condition average condition and those not so good
I occasionally read the chargers tests done by HKJ and I thank him very much for his work .
Iāve some questions about the LiitoKala Engineer Lii-500. Itās OK for Li-ion batteries but HKJ says the termination is too quick for NimH batteries. What is the good termination for a NimH battery? If it stops at 1.45 V instead of 1.52 V (for example), do I lost a lot of power or just a little : 2400 instead of 2500 mAh for example?
2 years ago, I bought a Lacrosse RS-1020 before HKJ did a test. I was a little disappointed because it seems itās not a good charger (too much current after termination). When I charge AA Eneloop Pro XX at 200 mA (the most convenient, Iāve nothing to do and Iām not in a hurry), it never exceed 1.49 V (I have the same tension with my multimeter) and when it stops, the tension is 1.46~1.47 V while the RS-1020 climbs to 1.52 V with 1 A on HKJās tests.
With AA Tronics (Lidl), when it stops, the tension is about 1.44 V.
It seems to be similar with the LiitoKala when it charges an Eneloop at 300 mAh.
What do you think? Can we hope a correction for this new charger? I donāt use a lot of electrical devices which use batteries. Then I should want to avoid to buy a lot of chargers .
Thank you .
Nobody to help me ? HKJ ?
You cannot terminate a NiMH charger on voltage, if you want a full battery. Some chargers cheats a bit and do a top-off charge after they terminate, that way it is much more likely you get a full battery.
Another way to terminate charging on NiMH is -dv/dt, this looks for a small voltage drop, before terminating. This will fill the batteries, but can miss termination in some cases (Especially with low charge current).
In my reviews I look at the temperature, when it starts raising the cell is full. A charger could also do that, but it can be a bit tricky to make reliable.
Ok, I know a little how do a charger but itās not very easy to control it and Iāve red that the voltage decrease when the battery is full, thatās why I control it on the screen and Iāve seen it on my RS-1020.
Then how can I know the battery is well filled?
Does the LiitoKala misses a lot the termination : 10, 20ā¦?
Thank you .
Only by discharging it and measuring how much capacity is in it.
I did not see any during my test and with the voltage termination low enough it will never miss a termination.