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Questions tagged [tp4056]

For questions about the lithium ion battery charger integrated circuit.

A lithium ion battery charger integrated circuit.

90 questions
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TP4056 Lithium-ion Charger Module with USB-C PD

I have a USB-C version of one of these TP4056 Lithium-ion charger modules. It works well so far from limited testing (the battery I've used has its own protection), but there's a lot more to test. The problem I'm having is that it works perfectly…
Aubs
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Adding power path to TP4056 solar battery charger and limit output voltage to 5.5 V or below

I have a 6 V solar panel and a bunch of TP4056 modules with the battery protection circuits lying around and I thought I'd use them to make a solar powered BLE circuit with the nRF52840 dongle for some future projects as also have a couple of those…
Norwegian_Spock
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Why should I put a Schottky diode and a resistor between a USB connector and a TP4056 charger IC?

I've found this useful explanation for a load sharing circuit based on the established TP4056 charger IC: LINK: https://www.youtube.com/watch?v=T70mBHeIOZA&ab_channel=WellDoneTips SCREENSHOT: Now I would like to know why there is a SS14 Schottky…
playmobox
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TP4056 battery output (charging voltage) is not constant

I tried to design a charging circuit based on the TP4056 Li-po charger chip. At a USB voltage of 5 V, the battery charging output (Pin 5 of the TP4056) is 4.3 V. This seems acceptable, but there seems to be no regulation in my circuit as the battery…
T-RexMan
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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 this a good way? Update: I have change my…
Titor Ps360
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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 Vout, and when I hot-swap the other one instead, it…
Tom Auger
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TP4056 circuit component question

I have a circuit that was made for me some time ago by an electrical engineer. But looking at many other TP4056 circuits I see that my circuit has a few parts that no one else has. So my question is, what are these parts purpose? My circuit:
Dogbone06
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TP4056 - Charge while load is used with Zener diode

I'd like to add a zener diode to my tp4056 in order to be able to use the load while the battery is charging. Context: I found this post that looked promising however I lack electronics knowledge and I'm not sure I understood the answer…
Bersez Nathan
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DW01A not allowing power in TP4056 circuit

Edit: Used wrong resistor at R_BAT1. The schematic was correct, the part I used was wrong. I am using the following charging circuit. It is the standard circuit taken from the datasheets. But it is not working. The line on the right leads to an…
Uday
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Chaining TP4056 modules, the proper way

I know a similar question was asked before, but still, it didn't aswer what I'm looking for. I need to charge a series of 6 Li-ion cells, and maybe 12 in the future for a voltage hungry project. Since a have a bunch of TP4056 modules laying around,…
Rhodexa
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Wiring problems on the TP4056 Module

I have been thinking of putting a 18650 Li-ion battery salvaged from an old laptop power battery to use so, I bought a few of those cheap TP4056 battery protection and charge circuit modules and I am a bit confused. I accidentally bridged the two B+…
Supragy Mishra
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Circuit for Charging 3.7V Lithium Polymer battery with Arduino Nano's 5V output

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. When disconnecting the USB, the battery powers…
gaebalsagae
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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, sometimes less than 5 mA, but constantly at 5 V. The…
UnknownDagger
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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 (No load sharing switching while charging). Now this is…
dharmikP
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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 have designed this circuit correctly? How is the current…
GildedWasp
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