Dual Micro USB 3.7V to 5V 2A Power Bank DIY 18650 LiPo Charger Module (Intelligent Mobile Step-Up Power Circuit)
Step into custom portable energy production and build your own heavy-duty backup batteries with this premium Dual Micro USB 3.7V to 5V 2A Power Bank DIY Board. Engineered as a complete, all-in-one charging management station, this smart module effortlessly steps up the low raw voltage of single-cell lithium batteries up to a stable, universal 5V direct-current output to charge smartphones, tablets, and low-power microcontrollers safely.
Connecting high-capacity lithium cells directly to a device without regulation will immediately destroy your electronics or create thermal hazards. This smart board integrates a sophisticated dual-stage processor layout that manages safely boosting power, re-charging the battery bank, and protecting against over-current events on a single layout. It serves as the definitive hardware core for custom field-testing power banks, solar-assisted backup packs, autonomous robot power reservoirs, and portable electronics workbenches.
Key Features
High-Current Dual USB Output Ports: Fitted with two standard Type-A USB socket outputs, allowing you to charge two separate mobile devices or power multiple microcontroller boards simultaneously.
Intelligent 2A Step-Up Power Engine: Staged with a highly efficient internal step-up converter that boosts single-cell direct-current battery potential up to a rock-solid 5V output at up to 2 Amps continuous delivery.
Dual-Port Charging Input Layout: Designed with dual charging ports (including universal Micro USB inputs) to give you total flexibility when connecting common wall adapters to replenish your battery bank.
Integrated Battery Status LED Indicator Matrix: Built with a high-contrast row of onboard diagnostic light-emitting diodes that flash and illuminate in real-time to visually track your exact internal battery capacity percentage.
Comprehensive Multi-Stage Safety Shields: Fully guarded with built-in hardware protection circuits that stop operation instantly during over-charging, deep over-discharging, and outbound short circuits.
Seamless Customization Support: Developed around an exceptionally versatile manufacturing outline. If your custom portable power product requires specialized board shapes, unique LED layouts, or alternative terminal mounting positions, we can easily modify the circuit tracking to match your exact blueprint specifications.
Technical Specifications
Feature | Specification |
Product Component Type | DIY Lithium-Ion Power Bank Management Breakout Board |
Compatible Battery Architecture | 3.7V Lithium Polymer or 18650 Lithium-Ion Cells (Parallel configuration) |
Charging Port Interface Input | Dual Micro USB Ports (Accepts standard 5V wall adapters) |
Regulated Output Interface | Dual Standard USB Type-A Ports (Parallel output tracking) |
Outbound Power Delivery Peak | 5V DC at up to 2 Amps maximum threshold limit |
Onboard Visual Telemetry | Multi-Segment LED capacity bar graph indicators |
Design Flexibility Feature | Custom dimension adaptations and tailored header options accepted on demand |
Hardware Battery Terminal Connection Mapping
The battery connection pads are clearly etched directly onto the bottom faces of the circuit plate to ensure simple, error-free wiring links:
B+ (Battery Positive Solder Pad): Connect directly to the positive terminal of your single-cell 3.7V Lithium-Ion or Lithium-Polymer battery bank.
B- (Battery Negative Solder Pad): Connect directly to the common negative terminal or reference ground of your lithium battery array.
⚠️ Critical Polarity Guard Notice: Lithium storage cells store massive amounts of electrochemical energy. Double-check your wiring paths before applying power; hooking up the battery terminals backward (reversing positive and negative) will bypass the onboard protections and permanently melt the main regulator chipset.
Common Applications
Custom Field-Deployable Power Banks: Solder multiple 18650 cylindrical cells in a parallel layout to build rugged, high-capacity portable charging stations for outdoor field engineering.
Autonomous Robotics Power Reserves: Act as a stable, isolated 5V direct-current power reservoir to run heavy logic controllers and sensors completely separate from high-noise motor batteries.
Uninterruptible Power Supplies for Pi Modules: Bridge into mini computer enclosures to create an automated battery backup line that keeps processing grids running smoothly during primary power dropouts.
Educational Academic Vocational Labs: An exceptional, highly engaging instructional accessory tool for teaching students about energy storage, voltage step-up circuits, and battery management parameters.
Package Includes:
1 x Dual Micro USB 3.7V to 5V 2A Power Bank DIY 18650 LiPo Charger Module