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Questions tagged [tp4056]

For questions about the TP4056 lithium-ion battery charger IC.

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KiCAD PWR_FLAG issue on DW01A circuit

I am building a TP4056 based battery charger circuit on KiCad. The ERC check throws the error as per the screenshot. Do I need to add the PWR_FLAG on VBAT- and VBAT+ nets as well or is there any other ...
Rakesh Mehta's user avatar
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1 answer
52 views

TP4056 circuit with Raspberry PI pico doesn't charge battery

I assembled the following circuit as shown in the picture. VBUS is connected to VBUS on the Raspberry Pi Pico, and VBAT to VSYS on the Raspberry Pi Pico. If the battery (LiPo) is not connected, the ...
JonassK's user avatar
1 vote
1 answer
96 views

Can I charge multipe 18650 lithium cells at fixed 4.2?

This question is edited. I am currently working on an emergency light and I want to power it with 4 18650 cells in parallel. I've tried using TP4056, but that is really slow. It takes well above 10 ...
Saad Nisar's user avatar
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0 answers
34 views

TP4056 charge discharge for a NiMH prius battery?

I want to make a capacity tester for a 6 cell module for prius batteries. They have 6000mAh new and anywhere from 2500-5000 mAH used. I was wondering if theTP4056 would work for a NiMH battery and if ...
crispYpickle's user avatar
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34 views

What type of device is this on TP5000 Application Exapmle?

Data Sheet (Chinese) Question 1 Component N1 looks similar to a mosfet but doesn't look like other ones that I have seen for N-Channel. What is this component supposed to be? This example is for LFP ...
sdolan's user avatar
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1 answer
63 views

LiPo charger with load sharing

I'm trying to make a LiPo charger + load sharing module that is mostly based on the popular TP4056 charger modules, this is my schematic: I've made the prototype and the charging and protection part ...
Razero's user avatar
  • 199
1 vote
1 answer
74 views

TP4056 with protection: schematic review

I'm working on an MP3 player PCB based on an ESP32. I would like it to run on a battery. I have looked for a TP4056 with protection schematics on OSHWLab. This is my schematic: Do I need the blue ...
ewaca's user avatar
  • 11
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1 answer
38 views

Charging for a DIY music player with Li-po battery with TP4056 IC [closed]

I am designing a PCB for a DIY DFmini Player based music player. I wanted to know if just putting the TP4056 IC would be sufficient for this application in the PCB or should I use a external TP4056 ...
fghbn hj's user avatar
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2 answers
104 views

How to revive this dead 3.7 V Li-ion pouch battery? [closed]

I made this Bluetooth speaker and I was happy it's working. I left it running and somehow the battery is dead. Battery voltage is now ZERO Any attempt to charge it using TP4056 board is not bringing ...
basitj's user avatar
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1 vote
1 answer
380 views

TP4056 USB-C charging module not working

I am having some trouble with my TP4056 USB-C module. When I first got it, I attached a Li-po battery to the battery terminals marked B+ and B- and without any load I plugged it in the socket to see ...
Solo's user avatar
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1 answer
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Is it OK to have two protectors for a single Li-ion battery?

I have a question regarding a Li-ion charger/protector module. The board I'm using a fairly standard Li-ion charger/protector module. This module manages the charge using a TP4056 IC and has a built-...
Stijn's user avatar
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1 vote
1 answer
71 views

Using two TP4056 modules to charge two cells in series

Here's an attempt to get use two modules of charges to charge and protect each of its own batteries connected in series. Adding back-to-back P-mosfets and a shottky diode converts the whole system ...
Benzine 's user avatar
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2 answers
87 views

Does ESD protection cause voltage leakage?

I have a this schematic for powering ESP32 over the usb and communicate PC with usb interface. It works perfect. But there is a interesting error. while I am powering ESP32 with Lipo battery (In case ...
mehmet's user avatar
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1 answer
347 views

tp4056 charger circuit with protection:can i short bat- and out-?

(Easy eda's personal project image) I'm trying to create this battery charger circuit,and I have a doubt whit this TP4056 with protection circuit: what happens if I short the bat ground whit the com ...
elettronicamp's user avatar
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1 answer
298 views

tp4056 circuit to charge 18650 1s battery

I am making a single 18560 battery charger pcb module like tp4056 module (because it is not available in my country), after some researches my schematic is here, but actually i am not sure about it, ...
sds xhd's user avatar
1 vote
0 answers
25 views

Circuit for Charging 3.7V Lithium Polymer battery with Arduino Nano's 5V output [duplicate]

I am building a circuit that charges a Lithium Polymer Battery with Arduino Nano IoT's 5V output. The idea is simple: while I connect USB to Arduino Nano, it starts charging the battery through TP4056....
gaebalsagae's user avatar
2 votes
1 answer
483 views

How to implement load sharing for charging a Li-ion battery when charger outputs less current than consumed by load?

I modified by TP4056 charge module like this Adding power path to TP4056 solar battery charger and limit output voltage to 5.5 V or below. But my charger's output is wind-powered so varies a lot, ...
UnknownDagger's user avatar
2 votes
4 answers
1k views

Is this a good way to make 2S 18650 battery cell while parallel charging?

I want to make a battery pack with 7.4 volt output and I want to charge them with 1A each so I connect them parallelly and input them with 5A 6A DC adapter. (No charging and using at the same time) Is ...
Titor Ps360's user avatar
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0 answers
147 views

LiPo Battery charging time with TP4056

I recycled some old ASUS battery laptop, with notes it had 15 V and 66 Wh rating. Then I disassembled it. Found 4 LiPo cells connected in series, each may be rated 3.88 V from a small print on each ...
Kharl's user avatar
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1 answer
134 views

TP4056 ON/OFF Switch not fully working

I was testing the PCB of an electronics design (attached) when I noticed that when I put SW1 into the "OFF" position, there was still a small voltage (~1V) on U37 (MT3608 boost converter) ...
Ethan Chua's user avatar
0 votes
2 answers
729 views

Why does a sudden voltage drop happen when I connect a solar panel to a TP4506 module?

I am integrating a solar energy system to my smart greenhouse. The energy system will operate two 12 V, 0.2 A case fans (they draw a maximum of 0.5 A for maximum rpm) and a 5 V, 0.5 A mist maker. I’m ...
Belal Bahaa's user avatar
0 votes
2 answers
121 views

TP4056 low output voltage, 5 V solar panel

I am using using a 5 V solar panel connected to a TP4056 to charge two 18650 batteries in series. Has your TP4056 ever shown an output voltage in millivolts when using a multimeter? When I check the ...
cheelo007's user avatar
1 vote
1 answer
137 views

Using li ion battery when it is under charging with TP4056 IC

I have a device that uses li-ion battery and the device is also connected to battery directly. For charging I have used TP4056 IC. Flow is like this, V_charge(5v) -> TP4056 -> Battery & load ...
dharmikP's user avatar
  • 525
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1 answer
150 views

S8550 reducing current

Updated Schematic I am trying to set up an external battery storage for solar lights as the solar lights are not in direct sunlight and cannot charge their own batteries. Each solar light runs off a ...
NateA's user avatar
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1 vote
1 answer
124 views

Help with battery charge circuit on STM32F4

I followed some sources and came up with a battery charge circuit. The way it's wired "should" also give reverse polarity protection to the circuit. Could someone help me understand if I ...
GildedWasp's user avatar
0 votes
1 answer
607 views

TP4056 / DW01A / FS8205A

Does this circuit have to be implemented with a DW01A battery protection IC and a FS8205A dual MOSFET IC? I want to make a simple circuit doing only the charging function of an 18650 battery. The ...
hervema's user avatar
  • 31
1 vote
1 answer
342 views

TP4056 / thermal pad

I am preparing a circuit using a TP4056. This circuit has a thermal pad. The datasheet says that this pad must be connected to ground or nothing. However, some forum discussions talk about connecting ...
hervema's user avatar
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0 answers
178 views

TP4056 humming without battery

I'm charging a 3.7V li-ion with a TP4056. The load (approximately 20mA) is connected in parallel with the li-ion. If I disconnect the battery while the TP4056 is receiving 5V on its input, I hear a ...
okwestern's user avatar
0 votes
2 answers
430 views

Is it possible to interface the TP4056 charge IC with a MCU?

Something like this: Where standby and charge are detected via GPIO pins of an MCU. I haven't seen this done before. (TP4056 datasheet)
R-802's user avatar
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1 answer
704 views

ESP32 and TP4056 lipo charging

I'm currently working on a project involving an ESP32-S3 Microcontroller. I want to implement a few things that are very hard for me to figure out. This is my current TP4056 charging logic + battery ...
Cem Pamir Bana's user avatar
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0 answers
311 views

Charging LiFePO₄ battery using TP4056

I'm working on a project that involves using a LiFePO₄ battery to power an ESP32 microcontroller without regulator to save energy. I have a TP4056 Li-ion battery charger, which has a voltage of 4.2 V. ...
Santiago Mercante's user avatar
0 votes
0 answers
68 views

Current flowing through transistor with no Vcc

I'm trying to get a motion sensor to turn on a motor. I use a C1815 transistor. The problem is that the motor still turns when there is no Vcc from the sensor. The positive for the motor comes ...
Andy's user avatar
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0 votes
1 answer
116 views

Solar lamp/phone charger output current too low for modern phones

I am building a solar lamp/phone charger following this page, with the circuit here below. I have two 18650 batteries in parallel. The charger module is the usual TP4056 taking 5 V input, and limited ...
mekano's user avatar
  • 1
1 vote
1 answer
1k views

TP4056 module series output

I'm trying to wire five TP4056 modules in series to produce enough voltage to power a motor. The batteries I'm using are identical 13400 lithium-ion batteries, which are connected to the module. ...
Jeff Flagerty's user avatar
0 votes
0 answers
247 views

DIY TP4056 Li-Ion does not charge

I created a DIY TP4056 Li-Ion charger, but for some reason it does not charge. Here is the schematic I created in EasyEDA. I tried replacing R4 with 2k - no effect. The red LED keeps flashing when I ...
Post Fah's user avatar
1 vote
1 answer
377 views

TP4056 keep shorting / dropping voltage when connected to XL6009 DC-DC converter. I found 2 solutions, which one is the best?

Here is the electronics, I took the picture after I cut the wires, the measurement being done before the wires being cut. Here is the diagram Basically, the voltage keeps dropping on C, from ...
David McTravord's user avatar
0 votes
1 answer
335 views

TP4056 not delivering fixed output [closed]

When I am trying to adjusts the charging resistor also it doesn't give the output. The output comes like 1.8 V only. NOTE: I have not connected any load.
Gopi Kammela's user avatar
0 votes
0 answers
23 views

Output voltage issue for TP4056 IC [duplicate]

I have a TP4056-based charger circuit. My problem: The output voltage of the TP4056 is very variable. The input voltage of the TP4056 is about 5.4 VDC from a DC power supply. The output voltage is ...
Gopi Kammela's user avatar
1 vote
1 answer
90 views

TC4056A shuts off at maximum volume (Bluetooth speaker)

I am trying to build a DIY Bluetooth speaker using a 18650 battery cell, a TC4056A battery charger board, an XY-016 that raises the voltage to 6.5 V, a 2200 μF capacitor, and a CSR8645 board. I am ...
Andrei-Eduard Lică's user avatar
1 vote
2 answers
2k views

Do these TP4056 charging boards have built-in load sharing?

I'm trying to design a simple rechargeable circuit that when plugged in, safely charges an 1S 18650 li-ion while also powering a load. I've been researching for awhile and can't seem to find ...
Josh Ruchty's user avatar
0 votes
1 answer
240 views

Ground reference with DW01 and MAX17048

I have designed a project that includes a TP4056 with DW01 protection ic and porwer sharing feature. Now I want to include a fuel gauge and the only one I have found is MAX17048 I have readed the ...
Emirikol's user avatar
1 vote
1 answer
1k views

For Lipo charging, why is TP4056 more popular when only MCP73831 performs load sharing?

I'm trying to power a simple circuit (0.25 mA LED) that will be used both when connected to a USB charging cable and by a single 3.7 C Li-ion cell (when disconnected). Between the available hardware ...
Josh Ruchty's user avatar
2 votes
2 answers
469 views

LM1117 LDO - Vout variability?

I have two LM1117T through-hole low dropout regulators that I bought from two different sources. Both are labeled as the 3.3V variant. I'm reading about 4.2 V across Gnd and Vin. One reads 3.27V on ...
Tom Auger's user avatar
  • 265
0 votes
1 answer
331 views

Using Arduino LED instead of LiPo charger (TP4056) CHRG + STDBY LEDs

I want to remove the LEDs (RED+GRN) on the charger PCB and indicate if the battery is charging on the Arduino 33 BLE Sense board instead. Arduino has a bad habit of reporting random numbers on the ...
Roger's user avatar
  • 3
0 votes
0 answers
735 views

TP4056 - high temperature

The TP4056 (1A) gets very hot (around 80-100*C) when charging the cell, so much so that it is impossible to hold it for more than a few seconds. Is it safe to use this circuit without any cooling?
Sebe's user avatar
  • 1
1 vote
2 answers
997 views

Charging two 18650 batteries separately but using them in parallel in one circuit

I want to build an external charger for 18650 batteries. I want to use the TP4056 module in order to do that. I just want to charge one single battery with that. So this charger will have a single ...
Dark Night's user avatar
0 votes
0 answers
281 views

TP4056 STDBY or CHARGE COMPLETED PIN PROBLEM

I have charger circuit TP4056 based. My battery capacitY is 1100mAh(LIPO). Charging current is 580mA according to datasheet that has R9. While I am charging the battery, i read 0V from BAT_CHG pin. ...
FAFİ's user avatar
  • 51
1 vote
0 answers
75 views

TP4056 circuit - have I got this right?

I've designed and built this circuit which seems to work, but this isn't my day job so if anyone's able to take a look at it and let me know if you can see any flaws or potential improvements I'd be ...
charliefarley's user avatar
-1 votes
1 answer
326 views

Using TP4056 to charge a battery with an NTC

I'm hoping its not a duplicate question but I currently have a TP4056 and the following lipo battery: Pijuice zero 1000 mAh battery. I'm fairly new to electronics and was wondering in this case what ...
Dawnz's user avatar
  • 1
0 votes
0 answers
372 views

TP4056 DW01A Problem

I have TP4056 with protection circuit. In charging, Everything is OK. OC : VDD - VBAT OD : VDD - VBAT While the battery is charging, the circuit continues to work on the battery when the charging ...
FAFİ's user avatar
  • 51