5V 1A 18650 TP4056 Lithium Battery Charger

1A Constant Current / Constant Voltage (CC/CV) Charging: Built on the reliable TP4056 linear charger IC, delivering a steady 1A charging current to 3.7V single-cell lithium-ion/Li-Po batteries.

Integrated Battery Protection IC: Features onboard dual protection circuits (DW01 IC and 8205A MOSFETs) to protect against overcharging (4.2V cut-off), overdischarging (2.5V cut-off), and overcurrent/short circuits.

Dual Power Input Terminals: Includes a standard Micro-USB input port alongside direct solder pads (IN+ and IN-), offering flexible power options from standard USB chargers or custom external DC supplies.

Real-Time LED Status Indicators: Dual onboard LEDs clearly show charging activity (red LED for charging, blue/green LED for standby or fully charged status).

Compact Breakout Form Factor: Lightweight, small-footprint PCB easily integrates into space-constrained DIY electronic builds, handheld gadgets, and custom power banks.

Automatic Charge Termination: Automatically stops charging when full battery voltage (4.2V) is reached and re-initiates charging if battery voltage drops below 4.05V.

Housing & PCB Style: High-quality FR-4 glass epoxy PCB with SMD components and onboard status LEDs.

Contact & Terminal Style: Gold/nickel-plated solder pads for BAT+, BAT-, OUT+, OUT-, IN+, IN-, and onboard female Micro-USB port.

Technical Specifications:

Input Voltage: 4.5V – 5.5V DC (via Micro-USB or solder pads).

Full Charge Cut-Off Voltage: 4.2V -+ 1.5%.

Max Output Current: 1A (Programmable via RPROG resistor).

Overdischarge Protection Cut-off: 2.5V.

Color: Blue PCB with white component silkscreen.

Usage Advice: Ensure correct polarity when connecting the battery to BAT+ and BAT-; reverse polarity can damage the TP4056 chip.

Maintenance: Keep board contacts free of dust, moisture, and excess flux. Store in anti-static packaging when not in use.

Essential DIY Lithium Power Module: Position as the gold-standard charging module for custom 18650 power banks, portable IoT devices, ESP32/Arduino mobile prototypes, and small robotics projects.

Highlight Dual-Protection & Easy Integration: Emphasize the onboard protection circuitry and Micro-USB port, making it ready for safe, plug-and-play charging without extra components.

Recommended Cross-Sell Add-ons: Pair with TP4056 1A lithium charging module Type-C, 5V 1A Mini USB TP4056 Lithium Battery Charger, 2 x 18650 Lithium Battery Shield Power Expansion Board, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Battery Charger Module collection page under single-cell 1S lithium charging staples.