DIYables 18650 Charger Board TP4056 Type-C and 3S Battery Capacity Indicator, 3 Sets
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Quick Overview
The DIYables 18650 Charger Board and Battery Capacity Indicator Set combines a TP4056 lithium battery charging protection board with a 3S lithium battery capacity indicator module. Together they give DIY battery projects safe USB Type-C charging and an at-a-glance power level readout, for power banks, portable devices, and Arduino or ESP32 builds.
The TP4056 board takes 5V from a USB Type-C cable and charges single-cell 18650 and other 3.7V lithium cells at up to 1000mA, cutting off at 4.2V with 1% accuracy. Built-in protection stops the cell from discharging below 2.5V and trips at 3A overcurrent, all on a compact 28 x 17mm board. The capacity indicator shows remaining battery level on an LED segment display, runs from 3V to 34V with only 5mA current draw, and measures voltage within 2% in a 44 x 20 x 8mm size.
Ideal for DIY power banks, portable speakers, handheld tools, robots, flashlights, and battery-powered Arduino and ESP32 projects. Three complete sets cover multiple builds or spares.
Key Features
- TP4056 Charging Chip — Charges 3.7V 18650 and lithium cells using a constant current, constant voltage profile
- USB Type-C Input — Charge from any 5V USB-C phone charger, power bank, or computer port
- 1A Charging Current — Up to 1000mA maximum charging current for faster charging of 18650 cells
- Accurate 4.2V Cut-Off — Charge cut-off voltage of 4.2V ±1% prevents overcharging
- Over-Discharge Protection — Disconnects the load at 2.5V to protect the cell from deep discharge
- 3A Overcurrent Protection — Guards the battery and circuit against short circuits and excessive current
- 3S Battery Capacity Indicator — LED segment display shows remaining battery level at a glance
- Wide 3–34V Working Voltage — Indicator operates across a 3V to 34V range with 2% voltage error
- Low 5mA Current Draw — Indicator draws only 5mA, minimizing drain on the battery
- Compact Modules — 28 x 17mm charger and 44 x 20 x 8mm indicator fit inside small enclosures
- 3 Complete Sets — Three charger boards and three indicators for multiple projects or spares
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | Lithium Battery Charger Board and Battery Capacity Indicator Set |
| Charger Chip | TP4056 |
| Charger Input Interface | USB Type-C |
| Charger Input Voltage | 5V |
| Max Charging Current | 1000mA (1A) |
| Charge Cut-Off Voltage | 4.2V ±1% |
| Over-Discharge Protect | 2.5V |
| Overcurrent Protection | 3A |
| Charger Size | 28mm x 17mm |
| Indicator Type | 3S lithium battery capacity indicator |
| Indicator Working Volt | 3V to 34V |
| Indicator Current | 5mA |
| Indicator Voltage Error | 2% |
| Indicator Working Temp | -20°C to 50°C |
| Indicator Size | 44mm x 20mm x 8mm |
| Package Quantity | 3 sets (3 charger boards and 3 capacity indicators) |
| Compatibility | 18650 and 3.7V lithium cells, Arduino, ESP32, ESP8266, Raspberry Pi Pico |
| Applications | DIY power banks, portable speakers, handheld tools, robots, battery-powered projects |
PACKAGE
A package includes:
| Qty | Items |
|---|---|
| 3 | TP4056 18650 Lithium Battery Charging Protection Board (USB Type-C) |
| 3 | 3S Lithium Battery Capacity Indicator Module |
COMPATIBLE HARDWARE
- 18650 lithium-ion cells — Single-cell 3.7V charging with the TP4056 board
- 3.7V LiPo and Li-ion batteries — Charging with 4.2V cut-off and built-in protection
- 3S lithium battery packs (11.1V) — Power level display with the capacity indicator
- USB Type-C chargers and power banks — 5V input source for the TP4056 board
- Arduino boards (UNO, Nano, Mega) — Battery-powered projects with a boost converter
- ESP32 and ESP8266 boards — Portable IoT devices running on 18650 cells
- Raspberry Pi Pico — Low-power battery-operated builds
- DC-DC boost converters — Step up 3.7V battery output to 5V or higher
- Any project powered by rechargeable lithium batteries