The new version of the TP4056 & advices.

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lithiumlegend
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The new version of the TP4056 & advices.

Hello Scholars :GRADE:
The original TP 4056 is only a charger, with over-charge protector. Here is the newer version of the TP4056, that has separate over-discharge protected output(that cut off if the voltages reaches below 2.4v). As you can see in the image, the inner B- & B+ are battery charging terminals and the outer terminals are the protected outputs.

So-
1) Have anyone experimented with these ones?
2) I am combining multiple TP4056 to create a 18650 cell pack. Purpose- Charging 6 cell 3.7v batterypack in less time.
Refer to this video that uses the original TP4056


This video only explains about charging the multiple cells at a time. But I have selected the TP4056 ‘with protected output’, to make a permanent batterypack. For that I will have to use the output terminals on it.
But my main question is that, can I combine the output terminals of all 6 TP4056 together to get a single output? Will the protection work in that way?

Thank you. Smile

Edited by: lithiumlegend on 05/06/2016 - 02:41
Halo...
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Meh, it’s a 4056 clone, not the original tp4056 chip (which has a stylized TP logo). HKJ only tested the original tp4056 and I haven’t seen anyone chart the charge profile of any of the clones. Now no one seems to sell the originals anymore. They took a great thing and turned it into worthless junk imho. I had one clone chip that tried to dangerously overcharge and wasn’t cc/cv. Do not trust these things.

L4M4
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At least the Under-Voltage-protection works fine.
I have a self-built 1*18650 Powerbank with one of these and the thing shuts off at a good voltage (don’t remember is though)

And remember: These things don’t have polarity protection. Once you put in a cell the wrong way, the chip is dead.

lithiumlegend
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Hallo Halo Smile
Thank you for reply. The module that I have shown in the photo is just an example picture taken from google.

lithiumlegend
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Hello, Smile
Thank you for reply. I ordered 50 pieces for 20$.
What do you mean “shuts off at a good voltage” ? This means Good or bad?
See you.

L4M4
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Good Smile

Barkuti
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Just received a letter from my lover. Blushing

I wonder if these are genuine chips, maybe they changed their logo. 8-)

Regards,
Salvador

snakebite
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yet another clone.the real co

Barkuti
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I do not really care if the thing I receive is considered a “clone” as long as it is well built and performs in no lesser way than I’d expect. Period.

Cheers Blushing

snakebite
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Only way to know is to test.your next batch from the same seller may be completely different though.btw the ones I get from ic station work perfectly.and have across 4 batches.

lithiumlegend
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Hello Barkuti,
Mine arrived too. They are good. I checked two of them. They charge 2200mAh 18650 cell in or little more than 4 hours.
I got the 18650 spring loaded battery cases too. They go well with these modules. Just two-way-tabe it at the back of the case. Smile .

Barkuti
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Hi! Smile

Got that 50-pack, lithiumlegend

You should be able to combine the modules' charging outputs without issues. It was already done by pilotdog68.

With regards to the overcurrent protection, should work well as long as you properly set in parallel all of the load outputs (OUT-s).

 

Cheers Party

Original post date: Fri, 05/06/2016 - 09:47; assorted fixups.

svicar1
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I connected tp4056 protection board with one 18650 to some motor…it take about 6A. The board is dead in a moment. I tried another board..dead the same… not charging anymore, only heating, no output.
How this overcurrent disscharge works? I belive that is not working.

Barkuti
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svicar1, 6A is a massive amount of current for one of these tiny 8205A FETs to handle, which may be the reason you are seeing magical smoke. Facepalm

How are you connecting your stuff? 

First, please make sure that is the maximum amount of current your motor needs to handle; if it is higher, then go with the higher number, better safe than sorry. Thumbs Up

Now, please consider the fact that most battery protection boards with a single 8205A specify a maximum 2A of continuous operating current (the FET will drop ≈0,05V by itself at that current flow).

Thence, if I were to be called upon for advice on an application like yours (max 6A?), I'd recommend to make use of no less than 5 of these boards. Battery cathode connected to each B- pin with a short, equal and not overly thin sized lead/wire. Likewise, load negative pole should be symmetrically connected to each OUT- through equal sized leads/wires.

With regards to charging the battery, just connect its anode to the amount of boards you plan on using for charging. If you are fine with ≈1,7A, connect the battery anode to just a couple of boards, the same ones getting the 5V input for charging.

 

Cheers Party

svicar1
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helo
I will tell you exactely what I need
I have hand vacuum cleaner.
https://cache.osta.ee/iv2/auctions/1_1_8495647.jpg
Originaly it has 3×1.2AA bateries in series. All the time charging it kiled batteries.
I take off the “charger” (few resistors, diode,..)
I decided to put inside only two 18650 (from old laptop) in paralel. And manualy charge the cleaner when it will be necesarly.
Now I need charging (not a problem) and low voltage protection board…the booard tp4056 seem perfect…but there is a problem current.
The motor take 6A constant current and 14A pick current.
How to modify the tp4056 board in the output that will pass this current?
relay??
change FET?
aditional FET??

Or connect motor directly to battery and use out from boart to some buzer or warning led (that the bateries has low voltage and need to charge)?

Please for help.

Barkuti
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Considering the low cost of these boards, just buy a 5-pack (or more):

5pcs Micro USB 5V 1A 18650 Lithium Battery Charging Board Charger Module New @eBay

As I said before, connect the battery pack cathode to all of the boards B- pin inputs, and the vacuum cleaner's motor to all of the OUT- pins, minimizing and balancing path resistance(s). When the boards are in operation under normal circumstances, their FETs are closed conducting electricity, and current flows between OUT- and B-. Since you say the thing can draw up to 14A, you may want to use 6+ boards in parallel to minimize the chances of a FET cascade opening, as each FET is controlled by its own “brain” (DW01 chip) and, with just 5 boards (5 × 3A peak current flow), we may find the protection kicking in from time to time if we often get near those 14A and our current paths aren't perfectly balanced (shouldn't be much of a problem, though).

Connect the battery pack anode to the boards B+/OUT+ (its the same thing) pins, so all of the DW01 monitoring chips are powered. Only the boards getting input power at their IN+ pins will charge the battery(es). Edited and fixed.

Alternatively, use TP4056 board(s) for charging, and leave the battery management duties to a more adecuate product: Battery BMS Protection PCB Board for 1-cell Li-ion / Li-Polymer Battery (7A) @FastTech (I'd wire two of those in parallel).

Hope this helps.

 

Cheers Party

Original post date: Fri, 11/04/2016 - 12:54; error fix.

svicar1
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helo
If I understend you to use multiple boards
the charging can be from one board only…
but how will DW01 chips on other boards work without B+??

Barkuti
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Ooops! Yes, forgot the DW01s are powered through the B+/OUT+, dumb me. Facepalm

Interconnect all of the B+/OUT+ pins to the battery pack anode. Only the boards receiving input power at the IN+ pin will charge the battery pack.

 

Cheers Party

svicar1
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so like this

what if I put 3V relay on out??
thank you for help.

Barkuti
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That's right, svicar1. Still, I warn you to use no less than 5 boards, 5 × 8205A FETs. At 14A peak current flow, no less than 3,5A will try to flow on each FET and it'll trip the protection…
Also, you ought to know it is safe to use more than 1 charging board in parallel, even if your “charger” (PSU) isn't powerful enough (though don't blame me if you're using some sort of cheap knockoff). The boards just throttle themselves. Look at this pic:

Custom hand-crafted powerbank I made for a friend. That board uses a single TP4056 charging chip. After some analysis, I improved the charging engine with the addition of a TP4056 charging/protection board in parallel. His phone charger, a 1A unit, delivers up to 1,2A, but it hasn't burned out yet while feeding the powerbank (which now requests 1,7+A).

 

 

Cheers Party

P.S.: Relay? No, thanks. Those FETs do such a task very well already. Modern solid state relays are made with FETs. Wink

Ram
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Need help to resolve the problem while using this tp4056 with protection charger. In my circuit I have taken the ground of protected circuit to my circuit. I am not getting the voltage when I give the input what is happening when I shorted the battery ground and protected circuit ground then only I am getting the voltage will it cause any problem to my battery. I am very confused and in danger zone will it charge if I short both the grounds

Ram'alone'employee

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Ram wrote:
… In my circuit I have taken the ground of protected circuit to my circuit. I am not getting the voltage when I give the input what is happening when I shorted the battery ground and protected circuit ground then only I am getting the voltage will it cause any problem to my battery. I am very confused and in danger zone will it charge if I short both the grounds

Gibberish machine translation problem. Flat Stare

Step by step:

1) “In my circuit I have taken the ground of protected circuit to my circuit. …”

What are you calling “circuit”? I see such word mentioned 3 times in your first sentence, and it seems to me each one refers to a different subject. Let me try to clarify reword it: “In my TP4056 board I have connected OUT- to load circuit. …” This is just a guess, and let me explain something: OUT- = IN-, OUT+ = B+.

 

2) “… I am not getting the voltage when I give the input what is happening…”

Dafuq?  What voltage? Should I presume some sort of cell is connected somewhere? There's also no mention of how the load circuit is being (!) powered.

 

3) “… when I shorted the battery ground and protected circuit ground then only I am getting the voltage will it cause any problem to my battery. …”

I believe this should be rephrased into “… only when I short B- and OUT- load circuit gets voltage, will it cause any problem to my battery? …”

Looks like the protection is triggered by the load Question circuit. This can happen with ≈5A of draw or less, as a single 8205A MOSFET is rated for just up to ≈2.5A continuous (typical 8205A's RDS(ON) is slightly below 30mΩ when at ambient temperature, while the typical DW01A detection voltage is ≈0.15V).

 

4) “… I am very confused and in danger zone will it charge if I short both the grounds”

You just bypassed the protection circuitry. If your load circuit cannot overload or overdischarge Question the battery, I see no problem and the thing runs a little less dampened.

 

Cheers Party

Ram
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I will clear everythung. Actually I am using this tp4056 to charge my battery through solar. I connected battery to B+ and B- taking output  from OUT+ and OUT- but I am getting only 1.2v (battery is fully charged LI-ION 3.6v 2600mah battery)

Why I am not getting the voltage. I shorted B- and OUT- to get the desired voltage

 

 

Ram'alone'employee

bansuri
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I have a Suboos 2×18650 hanging camp lantern that is a very handy design save for its UI and emitter choices. So it’s basically a host.
Considering replacing the driver and charging circuit and was wondering if this board would be acceptable for charging 2 cells in parallel?

snakebite
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a bit late but yes.
i have a 70’s table lamp i converted with 12p 18650.
at 1a into about 28ah it takes a while.
i jb weld epoxied a small heatsink to the board to help with thermal throttling.
esp since the solar panels output at 1a load in full sun approaches 6v.

bansuri wrote:
I have a Suboos 2×18650 hanging camp lantern that is a very handy design save for its UI and emitter choices. So it’s basically a host.
Considering replacing the driver and charging circuit and was wondering if this board would be acceptable for charging 2 cells in parallel?
Agro
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I’m about to buy a pack of TP4056.
The Type C variant from the link below:
https://www.aliexpress.com/item/32647690858.html

But seeing there are clones out there I wonder whether I can assume they are fine or maybe I should be worried?

Also, I see that there are variants with protection circuit, f.e.:
https://www.aliexpress.com/item/1800678916.html

The circuit does not help against reverse polarity (which would be useful) but against overcharge, overdischarge and overcurrent.
Really I fail to see what use would that protection have in a charger (which is supposed to terminate, to not short and never discharges). But these circuits are there for some reason so I likely miss something.

Suggestions?

Barkuti
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Agro that isn't hard to figure out. By integrating protective circuitry the board can also prevent over-discharge and etc., so it can be easier to li-ion convert something.

Newer, more compact size version:

 

https://www.aliexpress.com/item/32967650561.html

https://www.aliexpress.com/item/32966356149.html

No type-Crap yet LoL.

Agro
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Ah, I see.
I used to view the boards as just chargers that lack cases rather than parts of other devices. Even though I’ve seen them used in flashlights. Smile

Type-Commendable input is a must for me. Smile

Barkuti
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There are DIY ways around any limitations:

After all, it is likely to use 2 or 3 charging boards per input connector. So, you don't really need that much type-C TP4056 boards or socket boards (which they're asking more money for).

Barkuti
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Agro, if battery reverse polarity protection is important for you, try with TP5000 boards (datasheet).

Quite more expensive than TP4056 boards and they come without any socket, but can be found stock configured for 2A charging (with heatsink). Example: https://www.aliexpress.com/item/-/32886711330.html

Agro
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Thanks Barkuti. I’m actually looking into 50-100 mA range.
My cottonpickers charger starts failing and frequently stops the charge way too early.
Furthermore a few times I wished I could give sb. a 10180 charger.
And as of now I just don’t have anything around 100mA.

So…a few uses. Add magnetic leads, swap a resistor and TP4056 is ready to roll.

I was just worried that those boards may not be particularly good…
Reverse polarity protection would be nice. Myself I’m not infallable and I’d lije to be zble to give the boards to muggles. I need to look closer at that TP5000 when I’m bach home, maybe there are boards with usb ports…

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