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 Micro USB 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This board is the perfect foundation for making portable power banks, replacing outdated charger circuits in small electronics, or building custom battery-powered Raspberry Pi and Arduino projects.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
-
Integrated Charge & Boost Management: All-in-one IC (134N3P) handles both 1A charging (Micro USB input) and 1A 5V boost output (USB-A port) .
-
Comprehensive Protection Circuits: Includes overcharge, over-discharge (cutoff at 2.9V), overcurrent, output short circuit, and over-temperature protection to safeguard the battery and your devices .
-
Smart Charging Indicator: Visual status display with red LED indicating charging (flashing) and fully charged (solid), and a blue LED indicating discharging (flashing) .
-
Trickle Charge Support: Can safely recharge batteries that have been over-discharged to extremely low voltages (zero voltage charging support) .
-
Low Standby Current: Consumes an ultra-low 8µA typical quiescent current when idle, minimizing battery drain when not in use .
-
85% Conversion Efficiency: High-efficiency boost converter delivers an 85% efficiency rate (at 3.7V input, 5V/1A output) for effective power utilization .
-
Compatible Battery Types: Designed for single-cell 3.7V lithium batteries, including 18650, 14500, and LiPo pouch cells (must be connected in parallel for increased capacity; series connection is NOT supported) .
-
Compact Form Factor: Small PCB size (approx. 20mm x 18mm) allows for easy integration into portable devices and tight enclosures .
Technical Specifications
| Parameter | Operating Value |
|---|---|
| Input Charging Voltage | 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) |
| Protection Functions | Overcharge, Over-discharge, Overcurrent, Short-Circuit, Over-temperature |
| Charging Interface | Micro USB |
| Output Interface | USB-A Female |
| Dimensions (approx.) | 20mm × 18mm × 1mm |
Reviews
There are no reviews yet.