Description
Product Overview
The 5V Boost Board Lithium Battery Charging Protection Board is a compact, highly integrated power management module designed for single-cell lithium batteries. Based on the 134N3P power management IC, this board combines battery charging, 5V boost output, and comprehensive protection circuits into a single, easy-to-use module—making it an all-in-one solution for DIY power banks, portable chargers, and other battery-powered projects .
This module is a major step up from simpler charger boards like the TP4056. While the TP4056 only handles charging, the 134N3P board intelligently manages the entire power flow: it charges your battery when you plug in a Type-C power source and boosts the battery’s 3.7V to a stable 5V for powering USB devices when disconnected . It automatically switches between grid power and battery power without any manual intervention.
At its core, a built-in battery protection circuit safeguards against overcharging, over-discharging, short circuits, and overheating . Indicator LEDs provide visual feedback for charging and discharging status, and the module supports trickle charging for deeply depleted batteries, reviving cells that have dropped to dangerously low voltages .
This board is the perfect foundation for making portable power banks, replacing outdated charger circuits in small electronics, or building custom battery-powered Raspberry Pi and Arduino projects. Whether you are a hobbyist or looking for a convenient OEM solution for a product design, this module provides a reliable, integrated power management core.
Key Features
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Integrated Charge & Boost Management: All-in-one IC (134N3P) handles both 1A charging (Type-C input) and 1A 5V boost output (USB-A port) .
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Comprehensive Protection Circuits: Includes overcharge, over-discharge (cutoff at 2.9V), overcurrent, output short circuit, overload, and over-temperature protection .
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Smart Charging Indicator: Visual status display with red LED flashing during charging, red LED solid when fully charged, and blue LED flashing when discharging .
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Trickle Charge Support: Can safely recharge batteries that have been over-discharged to extremely low voltages (zero voltage charging support) .
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Low Standby Current: Consumes an ultra-low 8µA typical quiescent current when idle, minimizing battery drain when not in use .
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85% Conversion Efficiency: High-efficiency boost converter delivers an 85% efficiency rate (at 3.7V input, 5V/1A output) for effective power utilization .
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Built-in Power MOS: Internally installed charging and discharging power MOS reduces external component count .
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Compatible Battery Types: Designed for single-cell 3.7V lithium batteries (Li-ion or LiPo), including 18650, 14500, and pouch cells .
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Input Voltage (Charging) | 3.7V – 5.5V DC (5V typical) |
| Charging Current (Max) | 1A |
| Output Voltage (Boost) | 5V DC |
| Output Current (Boost Max) | 1A |
| Battery Over-Discharge Cutoff | 2.9V |
| Full Charge Voltage | 4.2V ±1% |
| Standby Current | 8µA (Max) |
| Boost Efficiency | 85% (3.7V in, 5V/1A out) |
| Charging Interface | USB Type-C |
| Output Interface | USB-A Female |
| Protection Functions | Overcharge, Over-discharge, Overcurrent, Short-Circuit, Overload, Over-temperature |
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