SPARK 12V & 5V Dual-Output Rechargeable Lithium-Ion Battery Pack (1800mAh with Built-in BMS)

Technical Specifications

• Battery Capacity: 1800mAh (3S configuration using 3x 18650 cells).

• Cell Condition: Used / Pre-owned 1800mAh cells (Tested and capacity-graded for performance).

• Output Voltage:

  • 12V DC: Direct battery output for 12V devices.

  • 5V DC: Regulated output via integrated Step-Down (Buck) converter.

• Charging Input: Dedicated IN DC port for charging.

• Safety Features: Built-in BMS protection (Overcharge, over-discharge, short-circuit).

• Controls: Master ON/OFF rocker switch.

• Enclosure: Custom 3D-printed compact case.

Key Features

• Dual Voltage Output: Powers 12V and 5V devices simultaneously without extra converters.

• Cost-Effective: Eco-friendly recycled cells offer reliable power at an affordable price point.

• Compact & Safe: Complete BMS protection in a lightweight, portable form factor.

Applications

• WiFi Router backup power during outages.

• CCTV cameras & security modules.

• Arduino, ESP32, and DIY electronics projects.