3.6V 1A Single Cell LiFePO4 Lithium Battery Charger Module with Overvoltage Protection

3.6V 1A Single Cell LiFePO4 Lithium Battery Charger Module with Overvoltage Protection delivers a reliable, efficient charging solution engineered specifically for 3.2V LiFePO4 chemistry cells used in custom energy storage packs and 3S multi-cell battery arrays. This dedicated module integrates constant-current and constant-voltage (CC/CV) charging architectures to maximize battery lifespan while preventing overcharging hazards. Therefore, engineers rely on it for safe, unattended power management in DIY electronics projects. Furthermore, the built-in overvoltage protection safeguards sensitive cells against input voltage surges. Consequently, this hardware platform ensures optimal thermal stability and high charging efficiency across diverse operating conditions.

Key Features:

• Dedicated LiFePO4 Profile: Calibrated specifically for 3.2V nominal lithium iron phosphate cells utilized within 3S configurations.
• CC/CV Charging Mode: Implements constant-current and constant-voltage charging algorithms for precise energy delivery.
• Overvoltage Protection: Integrates active safety mechanisms to shield connected cells from dangerous input voltage spikes.
• Automatic Recharge: Restarts the charging cycle automatically if the battery terminal voltage drops below safety thresholds.
• Low-Power Sleep Mode: Minimizes quiescent current draw when input power is absent or charging completes.

Technical Specifications:

• Input Voltage Range: DC 3.8V to 6V (Recommended DC 5V)
• Charging Cut-Off Voltage: 3.6V ± 1%
• Maximum Charging Current: 1A (Adjustable via external resistor)
• Operating Temperature Range: -40°C to +85°C
• Switching Logic: Internal power transistor with reverse-leakage protection

Mechanical Specifications:

• PCB Construction: High-grade double-sided FR4 substrate
• Connection Terminals: Gold-plated through-hole solder pads for robust wiring
• Status Indicators: Dual LED outputs indicating charging status and charge completion
• Mounting Support: Compact layout suitable for integration into 3S battery enclosure walls

Dimensions:

• Module Length: ≈ 18.0 mm
• Module Width: ≈ 12.0 mm
• Board Thickness: ≈ 1.0 mm
• Weight: ≈ 2.0 g

Pinout and Wiring:

• IN+: Positive DC power supply input (Connect to 5V source).
• IN-: Negative power supply ground input.
• BAT+: Positive battery terminal connection linked to the 3.2V cell.
• BAT-: Negative battery terminal connection linked to the 3.2V cell.
• Note: However, verify polarities meticulously prior to powering the circuit to prevent irreversible semiconductor damage.

Datasheet Reference:

• Download Linear Technology TP4056 / Compatible Charger IC Datasheet

Commonly Used in:

• Portable Power Packs: Building custom 3S energy storage modules for field electronics.
• Solar Lighting Systems: Managing rechargeable LiFePO4 chemistry batteries in off-grid solar nodes.
• DIY Instrumentation: Providing reliable local power management for handheld measurement tools.

Applications:

• Single-Cell Battery Charging: Safely replenishing standalone 3.2V LiFePO4 cells from standard USB ports.
• Battery Backup Units: Maintaining continuous trickle or bulk charging for uninterruptible microcontrollers.
• Robotics Power Hubs: Integrating safe charging circuits into compact autonomous mobile platforms.

Equivalent Models:

• TP4056 Standard Li-Ion Module: Designed for 4.2V lithium-ion cells, although incompatible with LiFePO4 voltage curves.
• CN3058 LiFePO4 Charger Board: An alternative controller optimized specifically for solar-powered lithium iron applications.
• DW01 Battery Protection Board: A companion safety circuit board often paired with multi-cell arrays.

Package Includes:

• 1 × 3.6V 1A Single Cell LiFePO4 Lithium Battery Charger Module with Overvoltage Protection