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6000mAh 3.7V Li-ion Battery Pack | 2-Pin Connector

6000mAh 3.7V Li-ion Battery Pack | 2-Pin Connector

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Regular price $186.00 TWD
Regular price Sale price $186.00 TWD
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Short Product Description

The QSUG 6000mAh 3.7V Li-ion Battery Pack (QS-0307) is a high-capacity, reliable power source designed for custom electronics, RC models, and IoT devices. Featuring a standard 2-pin connector with pre-wired red and black leads, it offers effortless plug-and-play integration for your projects. Despite its massive 22.2Wh capacity, it maintains a compact footprint (6.6x3.6x1.9cm) and weighs just 90g. Available in-stock at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po, this battery pack is the perfect instant-pickup solution for makers needing long-lasting, stable 3.7V power.

Key Features

  • High Capacity 6000mAh: Provides 22.2Wh of energy to keep your IoT devices and robotics running for extended periods.
  • Plug-and-Play 2-Pin Connector: Comes pre-wired with a standard 2-pin terminal for safe, solder-free connection to your circuits.
  • Compact & Lightweight: Weighs only 90g with a small 6.6x3.6x1.9cm footprint, perfect for space-constrained projects.
  • Strict Safety Standards: Manufactured to GB31241-2022 standards, ensuring reliable performance and stable voltage output.
  • Clear Polarity Wiring: Industry-standard Red (+ Positive) and Black (- Negative) wires prevent accidental reverse polarity connections.

Full Product Description

Massive 6000mAh Capacity for Extended Runtime

This QSUG lithium-ion battery pack delivers an impressive 6000mAh (22.2Wh) of capacity, ensuring your portable projects run significantly longer between charges. Whether you are building a remote environmental sensor node, a custom Bluetooth speaker, or upgrading the battery life of an RC vehicle, this high-density cell provides the sustained 3.7V power required for power-hungry applications. Its compact 6.6cm x 3.6cm x 1.9cm dimensions make it easy to conceal within custom 3D-printed enclosures or tight chassis spaces.

Standard 2-Pin Connector for Easy Integration

Equipped with a pre-attached 2-pin connector, this battery pack eliminates the need for dangerous direct-cell soldering. The universally recognized red (positive) and black (negative) wiring ensures you can quickly and safely connect the battery to your development boards, motor drivers, or dedicated charging modules. The secure clip-in design of the 2-pin plug prevents accidental disconnections caused by vibrations in moving robotics or RC models.

Pro Tip from Our Technicians

Always use a dedicated 3.7V/4.2V Lithium-ion battery charging module (such as the TP4056) to safely recharge this battery pack. Our Sham Shui Po DIY electronics specialists strongly warn against connecting this battery directly to a 5V USB power supply without a proper charging circuit, as exceeding the strict 4.2V charging limit will cause the battery to swell, permanently damaging the cells and creating a severe fire hazard.

Technical Specifications

  • Brand: QSUG (祺索)
  • Model: QS-0307
  • Battery Chemistry: Rechargeable Lithium-ion (Li-ion)
  • Nominal Capacity: 6000mAh
  • Energy Rating: 22.2Wh
  • Nominal Voltage: 3.7V DC
  • Charging Limit Voltage: 4.2V Max
  • Output Interface: 2-Pin Connector (Red/Black Wire)
  • Dimensions: 6.6cm (L) x 3.6cm (W) x 1.9cm (H)
  • Weight: 90g

Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

FAQ Section

  • Can I use this battery to power a 5V Arduino or Raspberry Pi directly?No, this battery outputs a nominal 3.7V; to power 5V devices like an Arduino or Raspberry Pi, you must connect this battery to a 5V step-up (boost) converter module first.
  • How do I safely recharge this 3.7V battery pack?You must connect the 2-pin plug to a dedicated 3.7V Lithium-ion battery charging module (like a TP4056 board) that safely cuts off power at the 4.2V limit.
  • What do the red and black wires represent?Following standard electrical safety codes, the Red wire is the Positive (+) terminal, and the Black wire is the Negative (-) ground terminal.
  • Is this battery small enough to fit inside custom 3D printed cases?Yes, measuring just 6.6cm x 3.6cm x 1.9cm, this battery pack is highly compact and designed specifically to fit into tight DIY project enclosures.
  • Can I buy this 6000mAh battery today at your Hong Kong store?Yes, this QSUG 6000mAh 3.7V battery pack is regularly stocked at our Sun Cheong Computer Co. Ltd. physical store in Sham Shui Po for immediate purchase and pickup.

Target Users / Applications

  • DIY electronics makers building portable Bluetooth speakers requiring long-lasting 3.7V power.
  • IoT developers deploying remote ESP32 sensor nodes that need a high-capacity 6000mAh battery for months of standby time.
  • RC hobbyists replacing degraded battery packs in remote-controlled cars, boats, or custom robotics.
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