MiBoxer C2-6000 3amp Smart Charger Review

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The bottom line on HJK’s review is “Something is good, something not, check the review”, I’ll go with that and skip this one.

I just put 4 brand new button top 30Qs from Liion Wholesale in my C2-6000 . All read high IR and low mAh capacity (low 2000s mAh total , original plus added ) when done charging. I thought it was only a problem with protected cells but that apparently is not the case. One cell was extremely high IR ( over 300 m ohm , this after 999 and reinserting multiple times). It did let me override the charge current and it stuck so if I ignore the readings it does charge cells .

Just noticed that the first two are not close to 4.2 volts .One is 3.89 and the other 4.06 . That’s weird.

I put a 5th 30Q into the LiitoKala 100 . It took about 11/2 hour longer to charge but it came off at 4.21 volts and stayed there. Maybe I should just buy 4 $5 LiitoKala 100s instead of a 4 bay charger. Less BS.

Hey mate are the batteries real? Do they have any sign of damage?

I think they are good. Came from reputable source. After putting them in the 100 , they are where they should be . The 6000 terminated them too soon . That’s a first for it.

How long did the charging take in the Lii-100? Did you charge them at 1 amp? Did you auto charge on the C2-6000 or manual select?

Send MiBoxer a message on here and ask them for a replacement?

Almost 4 hours at 1 A. The 6000 took about 2 hours at 1 A . I thought it was quick. Usually it takes forever to finish . I have 2 more cooking as we speak . We will see if it was a fluke or not. Yea, probably time to speak to Miboxer about it.

Was it 4 hours per cell? What voltage did you start charging the cell at? 4 hours is also to long?

Brand new cells . One was 6% , one 24% and so on. I knew this charger has a hard time with IR readings . Early termination is something new. Usually when it gets to CV stage , it takes a good 1-2 hours more but this time it said 100% in no time.

Weird I can’t say for sure the cells should ship at around 50% capacity. Around 3.6 volts. Did you measure the voltage when you got the cells? On brand new cells the cv phase should be quicker less then an hour for sure.

The batteries them selves sound a bit funny maybe they where old stock? What cells are they? Are they button tops?

30 Q button tops, these are the initial measurements from the charger.

#1- 3.52 V, 149 mohm, 24%

#2- 3.44 V, 225 mohm, 6%

#3- 3.54 V, 106 mohm, 6%

#4- 3.43 V, 337 mohm, 5% This one I had to reinsert many times to get this IR

The 5th one I don’t know because it went into the 100 charger .

Everytime I receive supposedly brand-new cells that are not around 3.65v (+/-.01v measured in my dmm, not from the charger’s), I am immediately alarmed about its quality.

Genuine cell manufacturers have very strict QC on cells that come out of their factory, and takes a very long time in storage before it self-discharges albeit at a very low rate.

Try testing a primary Energizer Lithium AA/AAA, they always measure 1.800v !

Hmmm they are a bit low but not bad. I would think 3.4v is a tad low for a new cells? I just got a review light from Gearbest they sent a cell inside it came at around 3.7v.

Plus you cant always trust the results from a charger when measuring voltage they are usually all over the place. My litokala engineer 500 read 4.20v when the battery is like 4.05v its pretty normal for a charger to do that.

I cant say your charger is okay because it could be stuffed but it could also be the button tops playing with the IR readings. Are the buttons welded in place?

My issue is the cells do not come from the factory with button tops they are added after by a company. So they could have made a whole bunch and just left them till they sell.

Have you tried any other cells in either charger?

I only tried protected cells in this charger before now. I always assumed the protection circuit accounted for the high IR readings. Now all the 30Qs read under 100 m ohms since they have been fully charged. I used the 100 to finish charge each one to termination after coming off the 6000 charger. They took considerably longer to complete on the 100. All of Liion Wholesale buttons are welded on by the way. I am going to purchase an analyzing charger to test their capacity because doing the math with mine resulted in extremely low figures for these cells.

Yea most of my protected cells measure bad but some worse then others my NCR18650 measure okay high but like 100-250 mohms. Then i have generic Chinese cells with protection that measure bad like 999 mohms lol.

Maybe for now just drain these cells down to 3v and charge them up again using the C2-6000 and get the capacity from that?

Its not impossible that you got bad cells seeing as there is lots of fakes around maybe the company has bought fakes and no one knows. Its also possible that the charger is broken but i dont think the Liitokala should take that long to finish the cells either.

Are the cells losing voltage while resting? After charging what is there initial resting voltage? My hard worn HG2 will charge to 4.21v then after a while rest at 4.15v because they are worn.

They are holding . They are probably ok, just need exercise. Thanks.

All good!

Best to explore all possibilities first.

If its a dud charger best to get on it sooner then later and get a new one or a refund. If you want a analysing charger heaps of options now but none with 3amp charging.

I am thinking Zanflare C4 . Not a lot of $, decent review . Maybe now that my cells have been charged once, the 6000 will be ok .