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Description
Elecrow ThinkNode M4 Meshtastic Power BankLooking for the LoRaWAN Tracker version? See the ThinkNode M4 LoRaWAN Tracker Power Bank ThinkNode M4 is a next generation multifunctional power bank that goes far beyond traditional portable charging. It integrates Meshtastic communication, LoRa long range wireless technology, and a high precision GPS module, delivering a powerful decentralized communication and positioning solution in one compact device. Powered by Nordic nRF52840 and Semtech
Looking for the LoRaWAN Tracker version? See the ThinkNode M4 LoRaWAN Tracker Power Bank
ThinkNode-M4 is a next-generation multifunctional power bank that goes far beyond traditional portable charging. It integrates Meshtastic communication, LoRa long-range wireless technology, and a high-precision GPS module, delivering a powerful decentralized communication and positioning solution in one compact device.
Powered by Nordic nRF52840 and Semtech LR1110, ThinkNode-M4 enables reliable, low-power, long-distance communication without relying on cellular networks or internet connectivity. Devices form a self-healing mesh network, allowing seamless communication, real-time messaging, and location sharing even in remote or emergency environments.
In addition to communication capabilities, M4 functions as a high-capacity 7000mAh power bank with fast charging, wireless charging, and reverse charging support. Designed for outdoor use, it features a rugged, durable enclosure and built-in sensors, making it ideal for demanding environments.
Whether you're in remote terrains, disaster response scenarios, or building a community network, ThinkNode-M4 ensures reliable communication, positioning, and power anywhere, anytime.
Key Highlights
- 7000mAh High-Capacity Power Bank (up to 20W output)
- LoRa Long-Range Communication (868–915 MHz)
- GPS Positioning (GPS, BeiDou, GLONASS, QZSS)
- Meshtastic Mesh Networking (No Internet Required)
- Wireless Charging + Magnetic Charging Support
- Built-in Emergency LED Light
- Temperature, Humidity & Motion Sensors
- Rugged, Portable, Outdoor-Ready Design
Key Features
- Meshtastic Protocol Support – Enables decentralized, low-power, long-range communication
- LoRa Long-Distance Transmission – Stable and efficient communication over extended distances
- Mesh Networking Capability – Devices act as nodes to expand network coverage automatically
- Real-Time GPS Tracking – Accurate positioning and route tracking in outdoor environments
- Location Sharing – Share live location data across the mesh network
- Dual Functionality – Combines power bank + communication device in one unit
- Fast Charging & Reverse Charging – Supports PD, QC, and wireless charging
- Multi-Device Compatibility – Works with smartphones, tablets, cameras, GPS devices, etc.
- Smart Power Management – Protection against overcharge, over-discharge, and short circuit
- Built-in Sensors – Temperature, humidity, and 6-axis gyroscope for environmental monitoring
- Emergency Lighting – Multiple lighting modes (normal, strong, flashing)
- Rugged Design – Waterproof, dustproof, and shock-resistant enclosure
Applications
- Outdoor Adventure (mountains, forests, deserts)
- Emergency & Disaster Communication
- Community Mesh Networking
- Golf Courses & Resorts
- Summer Camps & Group Activities
- Ski Resorts & Remote Locations
Technical Specifications
| Category | Specification |
|---|---|
| Power Bank | |
| Fast Charging Protocol | PPS output; QC2.0 output, QC3+/QC3.0 output; PD3.1 input/output; SCP/FCP/AFC input/output; |
| Meter | Integrated high-precision electricity meter |
| Charging Management | Support single-cell charging, including trickle current, constant current, constant voltage, charge cutoff, and recharge complete charging cycle management |
| Output Power | Up to 20W |
| LoRa Communication | |
| CPU/SoC | nRF52840-QIAA (Nordic) |
| System Memory | 256 KB RAM |
| Storage | 3 MB Flash memory (external 2M Flash chip) |
| Firmware | Meshtastic firmware compatible, LoRaWAN Tracker function compatible (Optional) |
| LoRa Transceiver | Semtech LR1110 |
| Charge & Discharge | Charge and discharge function (charge three units at the same time) |
| Charging & Output | |
| Type-C Port Input | 5V/3A, 9V/2A, 12V/1.5A |
| Type-C Cable Output | 5V/3A, 9V/2A, 12V/1.5A |
| Wireless Charging | 5W, 7.5W, 10W, 15W |
| Charging Time | 3~4 Hour |
| Wireless Communication | |
| Bluetooth | Bluetooth Low Energy and Bluetooth 5.4 (internal antenna) |
| LoRa | LR1110 LoRa Transceiver, US 915MHz / EU 868MHz (Internal antenna) |
| Battery | |
| Type | 18650 Lithium-ion Battery |
| Nominal Capacity | 7000mAh |
| Power | 3.6V / 25.2Wh |
| Rated Capacity | 3800mAh (5V/3A) |
| Conversion Rate | More than 74% |
| Hardware | |
| Power Button | Touch to wake device or turn on light |
| LoRa/Bluetooth Button | Enable/disable LoRa and Bluetooth |
| Emergency Lights | LED light with normal, strong, flashing modes |
| Charging Cable | Dual Type-C cables (charging + programming) |
| Magnetic Charging | Compatible with MagSafe |
| GPS | GPS, BeiDou, GLONASS, QZSS |
| Protection | Yes |
| Flashing Function | Yes |
| Other | |
| Sensor | Temperature, humidity, 6-axis gyroscope |
| Power Input | 5~12V, Type-C interface |
| Power Consumption | Working: 45mA; Sleep: 55uA (LoRa: 15.95uA, Power bank: 40uA); Max: TX 175mA / RX 54mA |
| Storage Temperature | -20~45 °C |
| Operating Temperature | 0°C ~ 40°C |
| Size | 87.3 × 67.7 × 28 mm |
| Enclosure | ABS fireproof plastic + PC + TPE |
| Using Method | Magnetic, handheld, lanyard |
| Weight | 190g |
Technical Documents
LoRa is a registered trademark of Semtech Corporation. LoRaWAN is a trademark of the LoRa Alliance. USB-C is a registered trademark of USB Implementers Forum. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Great quality. Easy to clean. Nice appearance.
Color: Red, Size: 4.3-Quart
Solid, heavy pot for cooking and baking. I bought it mainly for making soups, stews and breads. I have only tried soups thus far. The pot cleaned up very easily. The bottom of the pot heated uniformly. Nothing was stuck to the pot when I was simmering on the glass top stove. I have not had the chance to bake yet, but seeing how evenly it held heat while cooking, I am thinking this will be perfect. I bought the red color. It gives a nice pop of color in my kitchen. This pot will probably last me a long time. I would buy one if I needed a replacement, or a gift for someone.
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Reviewed in the United States on November 29, 2025
★★★★★ 5
Great quality for price after 3 years of use
Color: Matte Navy, Size: 6-Quart, Color: Matte Navy, Size: 6-Quart
I’m 3.5 years in and use it weekly. So far it’s been a great product especially for the price. We are really into soups, roast, and I bake bread a lot. This thing is amazing and a great quality. It’s easy to clean, does great in the oven, and stands up great to constant use. I only have a small amount of staining at the bottom, and a couple scratches from metal utensils. The lid is solid and the handle is really secure still, which is a problem I’ve had with other brands I’ve tried.
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Reviewed in the United States on February 2, 2026
★★★★★ 5
Quality product
Color: Navy, Size: 6-Quart
I absolutely LOVE my Dutch oven! The reduced cooking time for certain cuts of meat for stews, pot roast, etc., is a definite game changer!! The meat comes out so juicy and tender. I made curry and did the "burning" of the curry and was hesitant because I didn't want the pot to be stained. There were no stains left at all. I've used it numerous times since purchasing and it still looks new. It's very durable and the color is beautiful. If you're looking for a functional, quality, and durable Dutch oven without breaking the bank, this is it! I highly recommend.
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Reviewed in the United States on February 9, 2026
★★★★★ 5
Exactly what I wanted
Color: Blue, Size: 6-Quart
Amazing! Looks beautiful, high quality, good price. Well packaged, no defects. Heavy of course :) Blue color is amazing!
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Reviewed in the United States on April 26, 2026
★★★★★ 4
Nothing Exceptional but Gets the Job Done
Color: Blue, Size: 4.3-Quart, Color: Blue, Size: 4.3-Quart
I’ve owned this 4.5 Qt. Amazon Enameled Cast Iron Dutch Oven for almost two months and have used it three times to date. Upon arrival and at first glance, the gradient blue color is beautiful and super glossy; most importantly, the pot is heavy for its size - as it should be. It looks exactly like the product pictures, with a globular shape than square shape as others. Unfortunately, I also noticed that there was one pin hole and two tiny uneven protrusions on the enamel inside the pot.
I own three other enameled cast iron cookware from two other brands (photos attached for size comparison) and performance wise, this cast iron by Amazon performs equally to them. The pot isn’t exceptional or special but it gets the job done. Other than the pin holes and protrusions, I have no complaints. This isn’t my first rodeo so when heating up the pot and while cooking, I have zero issues.
I am starting the pan off at 4-Stars and will update my review as time progresses, or if I have any major issues with its durability or performance in subsequent months. For the amateur home cook, or for anyone who is new to cast iron cooking, below I’ve included tips that you may find useful while using this or any other enameled cast iron cookware.
================================
Regarding the 3 Photos and 1 video I've Attached:
(Note: all photos were taken with an iPhone under kitchen lights during the evening. Photos have not been edited nor enhanced.)
Photo 1: Size comparison of this Amazon Enameled Cast Iron Dutch Oven compared to three other enameled cast iron cookware that I own from two other brands. From left to right: 7 qt. Tramontina, 4.5 qt. Amazon, 3 qt. Lodge 4 qt. Tramontina.
Photos 2 and 3: fresh produce shown next to 4.5qt Amazon Dutch Oven for color and size contrast.
Video: 4.5 qt. Amazon Enameled Cast Iron Dutch Oven on gas stove over medium heat, with food cooking.
================================
TIPS THAT YOU MAY FIND USEFUL While Using your cast iron dutch oven:
(Note: I included these similar tips in my review of a different enameled cast iron pot from a different brand. My tips can apply to all enameled cast iron cookware)
1. If you find that you have issues with food sticking, it could be that you are not heating up your cast iron pot properly to prevent undue hot spots.
I heat my pot up gradually starting at low, then medium, then high heat. After my pot is very hot is when I add my fat/cooking oil. As the oil is heating up in the pot, I lift it and swirl the oil around to coat all sides of the pot that will come in contact with food.
2. Take into consideration the temperature of the items you are adding to your heated pot. As a general rule for cooking: when ever possible, ensure that the items you are adding to a hot pot are at room temperature, rather than ice cold from the fridge; this will assist with even cooking.
3. Also, get comfortable with adjusting your heat by lowering and raising it based on what you’ve added to the pot. In general, you will need more heat at the beginning of the cooking process, and less heat towards the end. If you cook by recipe, I highly recommend that you read all the steps ahead before starting, so that you become familiarized with all the procedures, allowing you to maneuver accordingly when you start cooking.
4. At the exception of searing meat to achieve a brown crust, deep frying, or when caramelizing onions, you should be stirring your pot (I recommend using a wooden spoon) every few minutes when cooking in cast iron that is placed over high heat. If you are braising on the stove at low heat versus braising in the oven, the frequency of your stirring will need to be adjusted. No matter how you’re cooking though, a watchful eye on the pot plus stirring, should both be a habit not an afterthought.
5. For all cooking vessels in general but especially for cast iron: after cooking, allow your pot to cool down completely before cleaning. NEVER immerse a hot cast iron pot into cold water, nor pour cold dish water into hot pot. You risk not only being scald by dangerous steam, but you also risk weakening the enamel, therefore lessening the durability of your pots over time.
6. This cookware and others like it from Tramontina and Lodge are economical and if used correctly, will perform well for most cooking; if used correctly, they should also last for years. Nonetheless, if you can afford it, authentic enameled cast iron cookware made in France by Le Creuset is the best way to go. Le Creuset is the gold standard in cast iron cookware and their quality is second to none. I definitely recommend this Amazon dutch oven but if you can afford to splurge, Le Creuset's reputation is stellar. As a professional chef, I've used them in high end kitchens and their quality and performance is premier.
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Reviewed in the United States on July 2, 2018