This Power Bank Module (Single USB Type-C, 5V/1A) is a compact charging and boost converter board used to build a DIY power bank using a 3.7V Li-ion battery (ex: 18650). It boosts the battery voltage to a stable 5V output for powering phones, Arduino/ESP32 projects, sensors, and portable electronics through a Type-C output port.
Key Features
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Output Port: USB Type-C (single port)
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Output Voltage: 5V DC
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Output Current: up to 1A
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Designed for 1-cell 3.7V Li-ion / Li-polymer batteries
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Portable, compact board for DIY power bank projects
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Built-in charging + boosting functions (common module design)
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Simple solder pads for battery connection (B+ / B-)
Full Specifications (Typical)
Electrical
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Battery Input: 1× 3.7V Li-ion / Li-Po (4.2V full charge)
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Output: 5V regulated via USB Type-C
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Max Output Current: 1A (recommended continuous depends on cooling and battery)
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Charging: Supports charging the battery through input pads/port (module dependent)
Protections (Module dependent)
Many versions include:
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Over-charge protection
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Over-discharge protection
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Over-current / short-circuit protection
(Depends on the exact board model—some are boost-only without full protection.)
Indicators / Controls (If available)
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Charging / full indicator LEDs (varies)
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Power enable / button interface (varies)
Applications
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DIY single-cell power bank (18650 or Li-Po)
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Portable 5V supply for Arduino / ESP32 / sensors
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Powering small LED strips (5V)
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Emergency backup power for small electronics
Used In
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Electronics hobby projects
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IoT portable nodes
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Mini UPS / portable supply builds
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Educational DIY kits
Package Includes
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1× Power Bank Module – USB Type-C – 5V 1A
