ChipScout

Power

TP4056

Very common single-cell lithium battery linear charger used in low-cost charging modules.

China-madeNanJing Top PowerActiveEasy

Best For

Projects needing Li-ion charger and Cheap module with a commonly available power part.

Avoid If

You need production-grade certainty without checking the exact module vendor, pinout, and library maintenance status.

Quick Decision Notes

TP4056 is indexed as a power part from NanJing Top Power. ChipScout tracks it by practical maker-facing dimensions: interfaces, library readiness, estimated price, field-level sources, and whether the page is strong enough for selection rather than only lookup.

Technical Specifications

FunctionLi-ion chargerSource: NanJing Top Power
Battery1S lithiumSource: NanJing Top Power
Charge CurrentProgrammable up to 1A classSource: NanJing Top Power
Input5VSource: NanJing Top Power

Common Use Cases

  • Maker prototypes
  • Low-cost modules
  • Educational hardware

Known Issues

  • Breakout boards may use different pin labels or regulator choices
  • Clone modules can differ from the original datasheet part

Interfaces and Library Support

Interfaces
None
Wireless
None
Voltage
3.3V
Libraries
Arduino pendingMicroPython pending
Data Integrity78% confidence
Sourcehttps://www.best-microcontroller-projects.com/support-files/tp4056.pdf
Last verified2026-05-20
Core specsVerified
PinoutAvailable
Library supportNeeds verification
Price rangePresent
Found a wrong spec?

Every field is meant to be source-backed. Corrections should include a datasheet URL, vendor page, module photo, or reproducible library test.

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Source Resources

Datasheethttps://www.best-microcontroller-projects.com/support-files/tp4056.pdfNanJing Top Power

Pinout Table

IN+IN+ / USB 5VPower input · 5V · Connect to USB 5V or protected 5V input.
IN-IN- / GNDGround · Input ground.
B+B+Battery · 1S Li-ion · Connect battery positive.
B-B-Battery · Connect battery negative.
OUT+OUT+Load · Only present on protected modules.

Pinout is not yet source-verified. Use the table as an integration checklist, then confirm exact pins against the module vendor page before wiring hardware.

Common Wiring

IN+

Power input · 5V · Connect to USB 5V or protected 5V input.

IN-

Ground · Input ground.

B+

Battery · 1S Li-ion · Connect battery positive.

B-

Battery · Connect battery negative.

Arduino Example

Arduino support is not verified for this record yet. Add a library resource in the admin panel once a maintained driver or vendor SDK example is confirmed.

MicroPython Example

MicroPython support is pending. Treat community scripts as prototypes until a maintained driver is linked and tested on a known development board.

Recommended Development Boards

Protected TP4056 module

Choose modules with DW01/8205 protection for beginner battery prototypes.

ESP32-C3 battery carrier

Useful for testing low-power sensor nodes.

USB current meter

Recommended for checking charge current and thermal behavior.

Alternative Model Reasons

MCP73831PowerUse for smaller, more production-friendly single-cell charger designs.
18650 Battery HolderPowerCompare this option when price or module availability is the deciding constraint.
74HC595PowerChoose this when Arduino library maturity matters more than exact silicon match.
A4988PowerChoose this when Arduino library maturity matters more than exact silicon match.

Common Questions

What is TP4056 best used for?

Projects needing Li-ion charger and Cheap module with a commonly available power part.

Does TP4056 support Arduino or MicroPython?

TP4056 has Arduino support pending verification and MicroPython support pending verification.

What interfaces does TP4056 use?

TP4056 lists no standard digital interface listed; wireless support is no wireless protocol.

Compare TP4056 vs MCP73831

Alternatives and Related Parts

MCP73831

Microchip

Tiny single-cell Li-ion charger used in compact battery-powered boards.

China-madePower84% confidence

18650 Battery Holder

Generic

Battery holder component useful to include because many maker power designs depend on its mechanical format.

China-madePower64% confidence

74HC595

Nexperia

8-bit shift register used to expand outputs for LEDs, relays, and simple digital control.

China-madePower86% confidence

A4988

Allegro MicroSystems

Common stepper motor driver used in older 3D printer and CNC control boards.

China-madePower86% confidence