Lower the charging current on a TP4056 charger board.
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- เผยแพร่เมื่อ 31 ก.ค. 2024
- Learn how to change the SMD resistor that controls the charging current on the TP4056 charger board.
TP4056 Data Sheet: rxl.onl/45ef1
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Nice video. I’ve just changed one of mines to lower the max current to 0,4A (3k Resistor) and I’ve succeded. FYI I’ve used a 0603 and no problems. 👍
Hello, can you tell me what kind of resistors are needed for 100mah and 240mah 3.7v batteries please.
Hi how many watts of the resistor capable for the TP. 4056
hi Ruben hope you are fine, i have 450mAh 403040 Lipo Battery i want to recharge it with TP4056 charger and please correct me if iam wrong i will change the resistore with 4k 1/4 watts is that right it will be great if you help me in this part Thank you
Great Video
Have you got any way of changing the minimum discharge voltage from 2.5 to something nearer 3v so the battery doesn't deplete
In reality, batteries like the 18650 don't suffer any irreversible damage even at around 2.5V. If you connect a voltmeter across the battery and discharge it until the protection kicks in, you'll see that the battery voltage rebounds to around 2.8V or more without any charging. It's probably a good idea to then recharge them sooner rather than later, but the chemistry is much more forgiving of over-discharge than it is of over-charging.
Thanks so much!
I have a Li-Ion rechargeable button cell
that requires a 50mA charge rate (120 mAh battery) Can I go higher than 10K resistor on the board to get the charger down further??
Thanks for the video! I will more than likely just replace with a standard quarter watt metal film resistor.
work also fine.the pads for this Rprog are so close to each other, it is crazy. the best with 1/4 resistor, is to try the resistor in the place it should go, bend its pins try again, if correct then solder...
@@DrZipZwan If you must use a standard through-hole resistor, then it's worth noting that the right-hand pad (as shown in the video) is actually ground, so you can ignore that pad and solder the replacement resistor's legs between the left-hand pad (=pin 2 of the TP4056) and the negative input pad/hole marked (-).
@@RexxSchneider yes, you may actually place the replacement resistor whenever, you like. Just make sure to solder 1 side of the resistor to pin 2 of TP4056 chip, and 2nd side of resistor to Main Ground.
Thanx for this nice video especially for the microscope view!
I just changed the R3 resistor but use a standard resistor, thats what I had around. It works fine.
IMPORTANT DETAIL: when you chose a resistor superior to 10K (because 10k is the max value in TP4056 datasheet), it messes with the led of "charged completed" !! so according to what/how the led is blinking, you should try to understand when the charging of your battery is done.
Would be interest know of fix it for charge LIR2032 battery.I want use higher value than 10K for that cell.
@@MACYNET323 I also did a charger for those coin battery, and works fine.
Had to go with 47K, because capacity of those coin batt is low around 200mA, and dont want rush them with high current. It is ok with me, got around 5 of those rechargeable LIR2032.
Just dont exept big capacity from them.
@@DrZipZwan Do you have use this module or it's another project that can you share?I tought to charge battery from 5V supply by just add a diode and resistor,THX
@@MACYNET323 I've been charging LR2032 batteries using the TP4056 for a long time now. I replaced the 1.2K SMD resistor with a 33K SMD and it works perfectly well. I've not seen a problem with the switch from "charge" to "standby" leds to indicate end of charge, but I may be just lucky. The end-of-charge voltage is always a solid 4.2V.
@@MACYNET323 Please don't charge lithium batteries from a 5V supply. Both the supply and the diode are likely subject to variations in voltage and you can't be sure you will keep the battery voltage below 4.2V. Considering that I can buy ten TP4056 modules with protection included for around £5 from eBay, whatever savings you're hoping to make by using a diode and resistor instead simply aren't worth it.
It worked! I used a 10k resistor. Thanks!
hi i have 450mAh 403040 Lipo Battery i want to recharge it with TP4056 board.. do you have any idea which suitable resistor that i can replace it with...I am confused thank you
@@samibanett516 A 10k resistor should work well.
@@Yonatan24 Thank you for your fast respond and help ..God bless you i will Use 10K Resistor i sub in your Channel
What worked? What it changed? (yeah I don't know what I'm doing here, but I need clarification why you do it, please answer)
@@WerewolfMaster It lowers the charging current
cool video....just want to ask if my lipo battery is rated 1800 ma, what should i do can i short the resistor? thanks.
You don't need to do anything. The default charge rate should be fine.
All the people asking "what resistor do I need" just do R = 1200/mah and you'll get what you need in K ohm
aka
R=1200/300mah meaning R = 3k ohm.
R=1200/100mah then R = 12k ohm
R=1200/240mah then R = 5k ohm
So on and so fourth.
As a side note, the mah charge rate is not the mah capacity rating of the battery. You need to look at the spec sheet of the battery for suggested charge rate for your specific battery(ies) to get the charge rate mah. A 1700mah capacity battery is not a 1700mah charge rate.
Hey! I have a 1700 mah battery (Lipo), do I need to change the resistor on the TP4056, or will my board with fine the way it is?
It is suggested that you charge Li-ion batteries at 30-40% of it's capacity for best life and performance of a battery. I believe the same is suggested for Lipo, so you would want to get the charge current between 510 - 680 mA. The default 1A current the TP4056 would charge it, but you would risk heating issues and performance losses, as well as possible damage to the battery.
Hallo and thanks for the video!
In the table that is in your video and also in the data sheet, the list ends at 1000mA . What if my LiPo is 1200mA ? I mean the table is not linear... What kind of R should I use?
Hi, take a look at your battery's datasheet, it will list the suggested charge rates. For example the LiPo 1200mA battery that I own has a suggested charge rate of 240mA.
You mean your battery is 1200mAh capacity. And @Ruban Lopez you mean the LiPo 1200mAh battery that you won has a charge rate of 240mA.
Capacities are measured in mAh and charge currents are measured in mA. It's because folks are sloppy about using units accurately that there is so much confusion.
@@rlopezxl what if there's no battery datasheet available? Not every battery has such luxury provided
What ohms value of the resistor should be replaced in R3 of TP4056 fit to 3.7v 200mah? Thanks!
not sure if you need it still but, the formula is Ibat = (Vprog/Rprog) x 1200 where Vprog is 1 (for 1V). Since you need Ibat to be 200mah, This would be written as "200 = (1/Rprog) x 1200" Simplifying it to Rprog = 1200/200. You'd need a 6k resistor.
That goes for any of these calculations. Rprog = 1200/mah to get your resister value in k ohm.
@@DustyClam-vx5fb Isn't the Ibat the charging current? From what I've researched is that you should aim to charge your batteries at 30% - 40% of the capacity for best life and performance. Shouldn't he try to calculate his resistor for Ibat to = 60 - 80mah?
Hey Ruben
For fast charging of my 18650 battery I removed the resistor r3 and replaced it with wire of negligible resistance.
If this step is correct or not
Please tell me the right thing to do 🙏
See how long that lasts.... lol.
@@boots7859 🥲
I have 3.7v 850mah lipo.. What is the suitable value of resistor? And can I use normal carbon resistor instead of smd resistor?
I think 1.5K would work but take a look at the datasheet linked in the description. Yes you can use a carbon resistor.
@@rlopezxl thank you so much for your valuable reply...thanks a lot 😊🤗❤
Hey is it ok that the TP4056 gets hot or should i limit the current flow?
It does get hot when charging at 1A. If the heat is a problem for your project you can lower the charging current.
Does it need to be the exact value for the resistor? I can't get 4k resistors, only 4,7k. Does it matter?
It does not need to be exact, just use a value that will give you an appropriate charging current for your battery. Using a higher resistor value will give you a lower charging current.
Lol. Did you just took out and put back the same resistor? Same value?
If the battery is 1500mah -2000 mah then resistor need to replace or not
I would suggest you replace it. It is suggested that you charge Li-ion batteries at 30-40% of it's capacity for best life and performance of a battery.
Q : Is there a way to adjust the Charging voltage on the TP4056 or is the reference within the IC ? I wish to only charge my 18650's to 4.0V max ?
That's set within the IC, no way to change that.
Yea, sorta figured that out after I found the data sheet. Thank You for the rapid reply.
the charging voltage I dont think so, but if you want the final charged voltage here is how to do it.
you need to use a Schottky diode, depending on what you want the battery voltage to be.
Explanation: lets say you want to charge your battery to 3,8V, so you need a Schottky diode of forward voltage of 0,4v.
This will make TP4056 think that the Battery is charged to 4,2V, while it is charged to 3,8V.
tricky tricky :D
@@DrZipZwan I think it would be a good idea to make a storage voltage charger. Can you tell me where to put the diode and which direction?
@@DrZipZwan could you use a variable resistor to replace R3?
Hey! Can I use a normal resistor in place of the SMD resistor? Both leads are in place of the SMD’s leads?
Yes, you can. Cut the leads shorter to make it easier. I did that in this project rxl.dev/to7f70
Ruben Lopez also, why do I need to lower the current rating? Can’t I just use the TP4056 as it is with a 650mah 3.7V LiPo battery?
@@lexoticstudios5669 the default charging current is too high for your 650mah battery. I would lower it to 650ma to prevent any damage to the battery.
@@lexoticstudios5669 because the charging current should be 35-40% of your battery capacity!!
40% of 650mA = 260mA
So you need to find a resistor that will set the charging current close to 260mA (maybe not exactly 260mA, but try to find a resistor that willl give your a charging current close to that number), it is better for the security of your battery and your project ;)
@@DrZipZwan A resistor of 4.7K will give something close to 260mA.
Which value of resistor should i use for getting 2 amp and 3 amp current
Please bro reply
I dont have much knowledge about these things
The datasheet states that 1 amp is the max. There is a different high current module that you can find on eBay. Search for "TP4056 High Current".
@@rlopezxl ok bro thank uu for replying
👌
I have a battery like 402030 but mine is 250mah so I would change to a 5k resistor
Is it possible to change max charged voltage cutoff?
sadly not without extensive modifications
one guy mentioned using a simple schottky diode with the correct voltage drop.
What did u apply before soldering
Soldering flux.
@@rlopezxl a very generous amount as well :)
I have a 180mah battery...
What kind of value i used 5k or 8k
Please reply
8k should work for your battery.
@@rlopezxl
I have a 10k potentiometer but how to connect in it with the set of 8k
@@nazmulhassan7008 Use a multimeter to figure out which leads you need to connect and to verify the resistance value. You can probably find a tutorial on Google, search for tp4056 and potentiometer.
Can we charge 2 parallel battery changing resistor? Araund 1.5 A 2 battery
The boards I've seen have a 1A max output. There is a different high current module that you can find. Search for "TP4056 High Current".
@@rlopezxl i know that there are different modules but i want connect 2 battery parallel to this module. Battery voltages are 4.2 v .They are in same voltage .I know we can connect 1 battery to this board.But can i connect 2 battery? Thanks for answer
I have not tried to do that myself but you can. Make sure you balance both batteries first before connecting them in parallel.
@@rlopezxl okey thanks
Can I charge multiple lithium battery at parallel in one tp4056?
I have not tried that. It is possible but you should go research the limitations and risks.
@@rlopezxl I do some research about it some saying that should use resistor because the limit of TP4056 is 1amp and 5v. 1amp = 1 lithium battery therefore the total is 4amps in 4battery while the voltage will stay the same (3.7v). The question is why do some people(DIY) in TH-cam using only 1 tp4056 and USB when creating a powerbank
The TP4056 modules are so cheap (l can see ten for £5 on eBay, including the extra protection chips) that there's really no reason not to use one per battery. Having each battery charged at its optimum rates will help to extend battery life, and you'll save money in the long run.
The resistor on my board is a 0603 SMD resistor, not a 0805. Just a heads-up for other tinkerers.
Very good video! I want to charge a LIR2032 and LIR2450 battery. Can I even use higher Resistors as 10K? Thanks in advance. BTW: I've subscribed!
I have not tried a resistor higher than 10K but someone in the comments mentioned problems with the LEDs with higher values.
@@rlopezxl OK. Thank you
Do you think it's a problem charging LIR2032 (45mAh) with 10K?
Yes, the charge rate is too high for that battery. I don't have experience with rechargeable button cells. Go search for a tutorial on charging those types of batteries with the TP4056. I'm sure someone on the Internet has already done it.
@@rlopezxl Yes, I've done it using a 33K resistor. It charges my LIR2032s at about 40mA and that would be perfectly safe for the LIR2450 as well (although it would take longer).
If anyone doesn't want to change the resistor on the the TP4056 module themselves, for a few pounds, they can buy a pre-build module with a 2032 coin cell holder soldered onto a TP4056 module that has been modified to supply a similarly low charge current. I've not experienced any issues with the LEDs on my charger.
Can be 1A used to charge 800mA ... ?
You should lower the charging current.
@@rlopezxl I see the closer option is 750mA. Than you
Did you mean "Pretend that I used a *HIGHER* value resistor."?
Hi..Thank you for the good Info on how to change the resistor.I need Help..i have the same battery 3.7 V - 1000mAh Can I use TP4056 .with 5V 1A to recharge it or i should change
the resistor 1000mAh ..if yes kindly you tell me which suitable Resistors to Replace I`m really sceard of doing any mistake I would very appreciate your help Thank you
Hi, thanks for the comment. You should lower the charging current, 1A is too high for your battery. I would charge it at 30% of the total capacity so use a 4K resistor to lower the charging current to 300mA.
Dear MR /@@rlopezxl Thank you very much.You advise me to use 4K resistor.my Q is if i change the resistor to 4K then can i use 5V 1A mobil charger ??
do you have any idea from where to buy those littel resistors 4K or i should use normal 4K R with colore line .Once again Thanks and God bless you The earth thanks the clouds when the rain comes!!
@@biancad6289 Yes a 5V 1A mobile charger is fine. You can buy SMD resistors online on eBay or Amazon, you can use a 1/4 watt resistor (the ones with the colored lines) just cut the leads short so it will be easier to solder.
Dear MR /@@rlopezxl Thank you very much..really you helped me i was struggle in the time i bought 20 of those battery last year after that i look every where on how to charge them even here in youtobe some they dont give proper help .and you solve it for me..sorry one last Q if you dont mind 1/4 watt how to describe it 1/4 watt means 33 Ohm or 3K and the smd resistor in ebay i just type smd resistor only theres number I apologize very much for bothering you Ruben..you are a Great man has Great heart Thank you.. Greetings and appreciation to you from St. Kitts Island
@@biancad6289 1/4 watt refers to the type. Here is an example of an older TP4056 board that I modified using a 1/4 watt resistor rlopezxl.files.wordpress.com/2018/05/ds_tp4056mod1.jpg and rlopezxl.files.wordpress.com/2018/05/ds_tp4056mod2.jpg. Use a 1/4 watt 4K resistor. For the SMD resistor, search for "0805 SMD kit" on eBay. It is cheaper to buy SMD resistors in a kit. The kit should include most common values, including 4K.
What if I DON'T have datasheet of max charging current for my battery? Rarely things are this perfect
you can use 1C or half of it if you want to be safe.
The Manufacture should use higher size resistor or even better a version with socket and carbon resistor for an easier swap
These are made for industry, not tinkerers.
@@boots7859 I've never seen them in any device using a 18650. I've only seen other charging modules. Do you have any examples?
i could only find 1206 ones. lets hope it'll work fine 0_0
That might be too big. I think it will cover the pads but let me know if you get it to work. Remember that you can always just use an axial resistor. Just cut the leads short.
For some strange reason, this video will not load at 720p resolution.
I noticed that earlier but it seems to be working now. Not sure what happened.
These modules are awesome! You can combine those to charge a pack of any S. Check out my review of TP4056 balance charger after 1 year of exploitation th-cam.com/video/XrSCNwitxjk/w-d-xo.html
У нас дети в радиокружке и то аккуратнее паяют.