
( Brand: Aoicrie ), ( Part Type: Battery Charger Module ), ( Color: Black ), ( UPC: 701715447554 )
The **AOICRIE 701715447554 Dual USB 18650 Battery Charger Module (4-Pack)** is a compact yet highly efficient solution for safely and reliably charging two 18650 lithium-ion batteries simultaneously via a single USB port. Designed with precision engineering, this module integrates a dual-channel charging circuit optimized for high-performance 3.7V lithium-ion cells, commonly used in drones, RC toys, flashlights, and portable electronics. Each charging channel is equipped with overcharge, over-discharge, and short-circuit protection, ensuring both the batteries and connected devices remain safe from potential damage. The module features a built-in current-limiting mechanism to prevent excessive charging currents, which extends battery lifespan while maintaining optimal performance. With a sleek, low-profile design, it can be seamlessly integrated into custom projects or used as a standalone charger for quick and efficient battery management. The inclusion of four units in the package offers versatility for bulk charging applications, making it ideal for hobbyists, DIY enthusiasts, and small-scale production setups. Whether used in a portable charging station, a multi-battery drone setup, or a DIY electronics project, this charger module delivers consistent, high-quality charging with minimal heat generation, ensuring reliability in both indoor and outdoor environments. Its compatibility with standard USB power sources (5V/2A or higher) makes it an accessible and practical choice for anyone looking to streamline their battery charging workflow.
### Pros and Cons of buying a AOICRIE 701715447554 Dual USB 18650 Battery Charger Module (4PCS)
#### **Pros:**1. **Dual Charging Ports** Allows simultaneous charging of two 18650 batteries, saving time and improving efficiency, especially for hobbyists or DIY projects requiring multiple batteries.
2. **USB-Compatible Design** Works with standard USB power sources (e.g., wall adapters, car chargers, or power banks), making it versatile for different charging scenarios.
3. **Compact and Portable** The module is small and lightweight, making it easy to carry and integrate into projects or setups where space is limited.
4. **Cost-Effective for Bulk Use** Since it comes in a pack of four, it offers good value if you frequently charge multiple 18650 batteries, reducing the need for individual chargers.
5. **Simple and User-Friendly** Designed for ease of use, with minimal wiring required. Ideal for beginners or those who prefer plug-and-play solutions.
6. **Common Battery Support** Compatible with standard 18650 batteries, which are widely used in RC cars, flashlights, drones, and other electronics.
7. **No Additional Power Supply Needed** Can be powered directly from a USB source, eliminating the need for a separate charger or adapter in many cases.
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#### **Cons:**1. **Limited to USB Power Input** Relies on a USB power source, which may not always be available or may require an additional adapter. If the USB input is insufficient (e.g., low-wattage power bank), charging may be slow or incomplete.
2. **No Built-In Protection Features** Unlike high-end chargers, this module may lack advanced safety features such as overcharge protection, short-circuit protection, or temperature monitoring. This could potentially damage batteries if misused or if the module malfunctions.
3. **Basic Charging Algorithm** The charging process may not be as optimized as dedicated chargers, potentially leading to slightly longer charge times or less efficient charging compared to specialized devices.
4. **No Display or Indicators** Lacks visual feedback (e.g., LEDs or digital display) to show charging status, battery level, or completion. Users must rely on external means to track progress.
5. **Potential Quality Concerns** As a generic or bulk-bought module, the quality may vary. Some users report inconsistent performance, such as overheating, uneven charging, or premature failure, especially if the module is not well-built.
6. **Not Ideal for High-Drain Batteries** While it works for standard 18650 batteries, it may not be suitable for high-capacity or specialized batteries that require precise charging parameters.
7. **No Reverse Polarity Protection** Incorrectly connecting the battery could damage the module or the battery. Users must be cautious when wiring to avoid short circuits.
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### **Conclusion:**The AOICRIE dual USB 18650 battery charger module is a practical and affordable solution for users who need to charge multiple 18650 batteries quickly and conveniently. It excels in versatility, portability, and simplicity, making it suitable for hobbyists, DIY enthusiasts, or those who frequently work with standard batteries. However, its lack of advanced safety features, limited feedback, and reliance on USB power input mean it is not ideal for critical or high-stakes applications. For casual users or those prioritizing cost and ease of use, this module is a solid choice. For serious battery management or professional use, investing in a dedicated, high-quality charger with built-in protections may be more reliable.
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### **Recommendation:**- **Buy it if:** You need a quick, budget-friendly way to charge multiple 18650 batteries in a non-critical setting (e.g., hobby projects, flashlights, or small electronics). The dual-port design and USB compatibility make it convenient for on-the-go charging.
- **Avoid it if:** You require precise charging control, advanced safety features, or plan to use it for high-performance applications (e.g., drones, high-drain devices, or commercial use). In such cases, prioritize chargers with protection circuits, temperature monitoring, and dedicated charging algorithms.
- **Alternative Consideration:** If you frequently charge batteries, look for dedicated 18650 chargers with multiple ports and safety certifications (e.g., from brands like **Xiaomi, iPeri, or Ekster**). These often provide better reliability and features at a slightly higher cost.
Installation instructions:The circuit board is connected to the battery negative B-, B positive, do not connecting reversed, reversed will burn board, in parallel welding, assembling battery.Note:Note that insulation between and lead touch so as cause a short. AOICRIE Dual USB 18650 Battery Charger Protection Module 4pcs, Power black. It is possible to connect only one lithium battery or multiple batteries in parallel. LED indicator and LCD display: When charging, the display will show IN letters; after load is connected, long press light button to start output, OUT letters relative output voltage current 5V1A or 5V2.1A.
Specifications:Micro USB input: 5V 1AUSB Output: 2.1A / 1A Dual interface Charging display: intelligent digital display Batteries Type: liquid lithium-ion batteries 18650 Features:Motherboard comes with protection function:Charging overcharge protection, over-discharge over current protection.Intelligent output device after charging full, automatically stop charging, to prevent mobile phone overcharge.Output voltage and current stable, will not harm user devices. If it is reversed, will burn out. Note: The positive pole of the battery is connected to B and negative B-, do not reverse it. The protection circuit of the boosted lithium battery has been integrated, prevent over-discharge, over-charge, overload short protection, over current and temperature.
The capacity of connected battery is no more than 200,000 MA, As long as the with a voltage 3.0-4.2V can be used.