TP4056 Type-C USB 5V 1A Lithium Battery Charging Board with Protection
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৳ 20.00৳ 50.00 (-60%)
This is a compact TP4056 Type-C USB 5V 1A lithium battery charging board featuring integrated over-discharge and over-current protection. It is designed to safely charge single-cell 3.7V lithium batteries (like 18650 cells) directly from a standard Type-C USB power source, making it a staple for DIY electronics and portable power projects.
The TP4056 Type-C USB 5V 1A Lithium Battery Charging Board is a highly popular, low-cost power management module tailored for safely handling single-cell 3.7V lithium-ion or lithium-polymer batteries (such as 18650, 14500, or pouch cells). This upgraded variation swaps out outdated micro-USB connections for a robust, reversible Type-C USB input socket. Unlike basic charger modules, this board integrates a dedicated battery protection IC, making it an all-in-one charging, regulation, and system safety solution for portable electronics development.
Key Product Features
- Modern Type-C Interface: Features a durable Type-C USB port to accept power directly from standard phone chargers, wall adapters, or computer ports.
- Dual Protection Circuitry: Houses standalone protection ICs to safeguard against dangerous battery conditions during both charge and discharge cycles.
- Solder Pad Flexibility: Includes dedicated peripheral solder pads adjacent to the Type-C port, allowing users to hardwire a direct 5V DC input source if preferred.
- Dual Status Indicator LEDs: Features onboard light-emitting diodes to clearly display real-time charging status (typically red for charging, blue/green for fully charged).
Technical Specifications
- Input Voltage Range: DC 4.5V to 5.5V.
- Full Charge Cutoff Voltage: 4.2V ± 1% (high-precision regulation).
- Max Charging Current Output: 1000mA (1A) by default (configurable via the Rprog resistor).
- Over-Discharge Protection Cutoff: ~2.5V (disconnects system load to preserve battery health).
- Over-Current Protection Threshold: 3A (guards against output short-circuits).
Pinout & Connection Mapping
- Input (+ / -): Solder points flanking the Type-C port for alternative 5V DC power inputs.
- B+ (Battery Positive): Connects directly to the positive terminal of the 3.7V lithium cell.
- B- (Battery Negative): Connects directly to the negative terminal of the 3.7V lithium cell.
- OUT+ (Output Positive): Connects to the positive power rail of your target device or load circuit.
- OUT- (Output Negative): Connects to the negative power rail of your target device or load circuit.
⚠️ Crucial Operating Instructions
- Never Reverse Polarities: Double-check your connections before powering the circuit. Reversing the battery polarity (
B+andB-) or input lines will instantly burn out the controller chips. - Disconnect Load While Charging: For the most accurate and safe charge cycle termination, turn off or disconnect the load from
OUT+andOUT-while the battery is charging. - Amperage Gauge Rules: If testing with an ammeter, the current meter should only be connected in series with the 5V input line of the charging board, not the battery line.
Practical Applications
This protective charging hub is the ideal building block for creating DIY power banks, portable Bluetooth speakers, hand-held gaming consoles, and rechargeable LED flashlights. It is also highly favored by researchers, students, and engineers for quick prototyping of IoT devices and lithium-powered sensor nodes.
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