5V 2A 18650 Dual USB Charger Module

Dual USB Output Ports: Features two USB Type-A output ports delivering up to 5V 2A combined output, allowing simultaneous charging of two mobile devices or electronics.

Integrated 18650 Battery Charger & Boost Converter: All-in-one step-up boost converter and single-cell lithium charger circuit designed to turn any 3.7V 18650 battery into a high-capacity portable power bank.

Micro-USB / Type-C Charging Input: Flexible onboard input ports make it fast and easy to recharge installed lithium cells using standard smartphone chargers.

Comprehensive Protection Features: Built-in protection architecture guards against overcharging, overdischarging, overcurrent, and output short circuits for maximum cell life and user safety.

LED Power Status Display: Onboard LED indicators show real-time battery status and charging progress at a glance.

Compact DIY Form Factor: Small-footprint circuit board designed for easy integration into custom power bank enclosures, portable IoT setups, and micro-controller projects.

Housing & PCB Style: High-density FR-4 glass epoxy PCB with SMD circuitry, dual female USB-A sockets, and status LEDs.

Contact & Terminal Style: Soldering pads for battery connections (B+ and B-), USB female receptacles, and input charging port.

Technical Specifications:

Input Charging Voltage: 5V DC via Micro-USB / Type-C.

Output Voltage: 5V DC.

Output Current: 2A (Max combined across dual USB ports).

Compatible Battery Chemistry: 3.7V Nominal Lithium-Ion / LiPo (e.g., 18650 cells connected in parallel).

Color: Blue PCB with silver metal USB ports.

Usage Advice: Pay strict attention to battery polarity when soldering to B+ and B-; reverse polarity connection will permanently damage the onboard controller chip.

Maintenance: Store in an anti-static bag in a cool, dry area when not in active use. Keep solder pads free of moisture and dirt.

Essential DIY Portable Power Solution: Position as an indispensable component for makers building custom multi-cell 18650 power banks, portable field power packs, or backup supplies for Raspberry Pi and Arduino builds.

Highlight Dual-Output & Built-in Protection: Emphasize the convenience of dual charging ports paired with comprehensive overcharge/overdischarge protection circuitry for worry-free device charging.

Recommended Cross-Sell Add-ons: Pair with 2 x 18650 Lithium Battery Shield Power Expansion Board, 4 x 18650 Lithium Battery Shield Power Expansion Board, TP4056 1A lithium charging module Type-C, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Essential: Display prominently on your Battery Charger Module collection page under multi-output power boost modules.