DC-DC Converter Boost Diy Battery charging Mobile Power Circuit Module
This DIY power bank module is designed for 18650 lithium batteries, allowing you to build a custom power bank. It supports dual USB output for charging multiple devices and features built-in safety protections along with LED indicators for power status.
Package Includes
- 1 x Dual Micro USB 3.7V to 5V 2A Boost Mobile Power Bank DIY 18650 Lithium Battery Charger
Features
- LED Indicators: Show battery and charging status, with automatic shutdown when idle.
- Dual USB Output: Charge two devices simultaneously with 5V1A and 5V2A outputs.
- Built-in Protection IC: Protects against over-current, over-voltage, and under-voltage.
- Versatile Compatibility: Works with various rechargeable lithium batteries.
Specifications
- Input Port: Micro USB
- Input Requirements: 5V constant voltage (recommended: 5V/1A or higher)
- Output Port: Dual USB
- Output Parameters: 5V/1A and 5V/2A
- Size: 8mm x 32mm x 69mm (H x W x L)
Battery Compatibility
- Compatible:
- 18650 lithium battery
- Cell phone battery
- Flat lithium battery
- MP3 battery
- 3.7V–4.2V polymer lithium battery (single or parallel only)
- Supports 2–6 parallel 18650 cells
- Not Compatible:
- Dry batteries
- 1.2V rechargeable batteries
- Nickel-metal hydride (NiMH) batteries
- 3.2V lithium iron phosphate (LiFePO4) batteries
Installation Notes
- Parallel Only: Batteries must be connected in parallel, not series.
- Voltage Range: 3.2V – 4.2V
- Correct Polarity: Connect battery + to B+ and – to B–. Incorrect wiring may damage the board.
- Battery Matching: Use batteries of the same model, brand, and age. Do not mix old and new cells.
Features
- LED Indicators: Show battery and charging status, with automatic shutdown when idle.
- Dual USB Output: Charge two devices simultaneously with 5V1A and 5V2A outputs.
- Built-in Protection IC: Protects against over-current, over-voltage, and under-voltage.
- Versatile Compatibility: Works with various rechargeable lithium batteries.
Specifications
- Input Port: Micro USB
- Input Requirements: 5V constant voltage (recommended: 5V/1A or higher)
- Output Port: Dual USB
- Output Parameters: 5V/1A and 5V/2A
- Size: 8mm x 32mm x 69mm (H x W x L)
Battery Compatibility
- Compatible:
- 18650 lithium battery
- Cell phone battery
- Flat lithium battery
- MP3 battery
- 3.7V–4.2V polymer lithium battery (single or parallel only)
- Supports 2–6 parallel 18650 cells
- Not Compatible:
- Dry batteries
- 1.2V rechargeable batteries
- Nickel-metal hydride (NiMH) batteries
- 3.2V lithium iron phosphate (LiFePO4) batteries
Installation Notes
- Parallel Only: Batteries must be connected in parallel, not series.
- Voltage Range: 3.2V – 4.2V
- Correct Polarity: Connect battery + to B+ and – to B–. Incorrect wiring may damage the board.
- Battery Matching: Use batteries of the same model, brand, and age. Do not mix old and new cells.