TP4056 1A Li-Ion Battery Charging Board Type C USB with Current Protection

The TP4056 Type-C USB Charging Module is a linear charger designed for 1-cell 3.7V lithium batteries using constant-current/constant-voltage (CC/CV) charging. It features a USB-C input, onboard charging status LEDs, and battery protection circuitry (optional based on module version).

Technical Specifications:

Input Voltage: 4.5V – 5.5V (via USB-C or IN+ & IN– pads)
Charging Current: Default: ~1A (Adjustable via resistor)
Battery Type: Single-cell 3.7V Li-ion/LiPo
Charge Cut-off Voltage: 4.2V ± 1%
Battery Protection: Available in protected version (overcharge, overdischarge, short circuit)
Status Indicators: Red = Charging, Blue = Fully charged

Pinouts:

TP4056 Pin	Function
IN+	5V Input Positive (if not using USB-C)
IN–	Input Ground
BAT+	Battery Positive Terminal
BAT–	Battery Ground
OUT+	Output Positive (same as BAT+) (on protected version)
OUT–	Output Ground (same as BAT–) (on protected version)

Connection with Battery and Adapter:

The TP4056 Type-C USB module is a hardware-only lithium battery charging module — it does not require any code to operate.

LED Color	Status
Red	Charging
Blue	Fully Charged

ZB2L3 18650 Li-ion Lithium Battery Capacity Tester

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ZB2L3 18650 Li-ion Lithium Battery Capacity Tester

ZB2L3 18650 Li-ion Lithium Battery Capacity Tester

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