Elecrow ThinkNode M4 7000 mAh Power Bank - Magnet Charge LoRa Device with Meshtastic Node nRF52840

$69.97

Pickup available at 3205 SW 40th Blvd Ste A

Usually ready in 1 hour

ThinkNode M4 is a multifunctional power bank that also integrates a Meshtastic communication module, LoRa long-distance wireless communication technology and a high-precision GPS module, providing users with a new decentralized communication and positioning solution.

Power your MagSafe compatible phone with your Meshtastic node! Note the device also has USB-C charging capability and can power via USB-C and MagSafe at the same time!

As a Meshtastic device, it provides users with high-precision, low-power positioning and communication solutions.

It has built-in Semtech's LR1110 (supporting 868-915 MHz frequency band), Nordic's nRF52840, and GPS modules to ensure the performance and reliability of the device. Meshtastic devices support distributed Mesh networks without relying on gateways or the Internet. Devices are nodes to each other and can automatically expand coverage. It supports two-way communication, including real-time text messaging and location sharing, and can meet diverse communication needs, whether it is point-to-point or broadcast communication. Meshtastic is particularly suitable for field operations, disaster emergencies, and other network-free environments, providing users with stable and reliable communication guarantees.

Features

  • Supporting the Meshtastic protocol, M4 realizes low-power and long-distance wireless communication.
  • Support LoRa long-distance transmission, integrated LoRa module, and support long-distance communication.
  • Decentralized network: Supports multi-device networking, users can build an independent communication network through M4 to achieve seamless connection and information sharing between devices.
  • Real-time positioning: Built-in high-sensitivity GPS module, supports real-time positioning and track recording, helping users to accurately navigate in outdoor environments.
  • Location sharing: Through the Meshtastic/LoRaWAN network, users can share location information in real time
  • Long battery life: Low power consumption design ensures that the communication module will not consume excessive power during long-term use, balancing the dual needs of communication and power support.
  • Large-capacity battery and fast charging support: Built-in high-energy-density lithium polymer battery, supports fast charging and reverse charging, and meets the power needs of various devices.
  • Compatible with multiple devices: Supports multiple interfaces such as USB-C, and is compatible with various electronic devices such as smartphones, tablets, GPS devices, cameras, etc.
  • Intelligent power management, built-in smart chip, real-time monitoring of battery status, providing multiple protections such as overcharge, over-discharge, short circuit, etc.
  • Integrated design: The power bank, communication module, and GPS module are perfectly integrated, with a small size, easy to carry, simple operation and no complicated settings.
  • Built-in Sensor: Temperature and humidity sensors and a six-axis gyroscope can detect motion and ambient temperature. 
  • Safety and reliability. Made of high-strength shell material, it is waterproof, dustproof and shockproof, and can adapt to various harsh environments.
  • Multi-functional application scenarios: Outdoor adventures such as deep mountains, jungles or deserts without signals, or emergency situations such as natural disasters or emergencies, or community network construction, M4 can achieve low-cost and high-reliability information transmission

The birth of ThinkNode M4 marks the deep integration of portable power and decentralized communication technology. Whether you are an outdoor enthusiast, an emergency rescue team, or a resident in a remote area, M4 can be your indispensable and reliable partner. It is not only an efficient portable power source, but also a decentralized communication device, which has versatility, long battery life and extreme ease of use, providing users with unprecedented convenience and safety.

Specs

Power Bank

Fast charging protocol
  • PPS output;
  • QC2.0 output, QC3+/QC3.0 output;
  • PD3.1 input/output;
  • SCP/FCP/AFC input/output;

Integrated

High-precision electricity meter

Switch charging
  • Support single-cell charging, including trickle current, constant current, constant voltage, charge cutoff, and recharge complete charging cycle management;

Synchronous Boost
  • 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, LoRa Tracker function compatible(Optional)

LoRa Transceiver

Semtech LR1110

Charge and discharge function (charge three units at the same time)

Type-C port

Input: 5V/3A, 9V/2A, 12V/1.5A

Type-C Cable

Discharge function:

Output: 5V/3A, 9V/2A, 12V/1.5A

Wireless charging

Discharge function:

Output: 5W, 7.5W, 10W, 15W

Charging time

3~4 Hour

Wireless Communication

Bluetooth

Bluetooth Low Energy and Bluetooth 5.4, internal antenna (phone configuration)

LoRa

LR1110 LoRa Transceiver, US 915MHz / EU 868MHz (Internal antenna）

Battery

Type

18650 Lithium-ion Battery

Nominal capacity

7000mAh (can be taken on airplanes)

Power

3.6V/25.2Wh

Rated capacity

3800mAh (5V/3A)

Conversion Rate

More than 74%

Hardware

Power button (power bank)

Touch a button to wake up the device or turn on the light

LoRa/Bluetooth function Button

Touch a button to enable/disable the LoRa function, and turn on/off the Bluetooth function.

Emergency Lights

Built-in LED strong light, three lighting effects (lighting, strong light, flashing)

Charging cable

Comes with dual cables (Type-C). One for charging, one for programming.

Magnetic charging

Compatible with Apple's MagSafe charging.

GPS positioning

Support GPS, BeiDou, GLONASS, QZSS, built-in ceramic antenna

Protection

Yes

Flashing function

Yes

Other

Sensor

Temperature and humidity sensors and a six-axis gyroscope

Power Input

5~12V, Type-C interface

Power consumption
  • Working static power consumption: 45mA;
  • Sleep power consumption: 55uA(LORA module: 15.95uA, power bank module: 40uA)
  • Maximum working current: Send 175mA, receive 54mA

Storage Temperature

-20~45 °C

Operation Temperature

0°C ~ 40°C

Size

87.3*67.7*28mm

Enclosure

ABS fireproof plastic+PC+TPE

Using Method

Magnetic, handheld, lanyard

Weight

190g


Package List

  • 1x ThinkNode M4 Power Bank for Meshtastic
  • 1xCharging Cable
  • 1x USB to USB-C Converter
  • 1x User Manual

Wiki & External links

Dev board & device return policy

Development boards and devices are specialty items that generally cannot be resold on return, especially if the firmware has been flashed. Defective boards and devices can be replaced or returned for refund within 30 days of purchase. Non-defective boards can be returned in the same time frame if in like-new condition with a 20 percent restocking fee applied. The reason is to help cover our original ship cost and item value depreciation for being used. If the board has had altered firmware or became bricked due to a non-standard firmware flash, the board may not be eligible for return.

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.
Shipping & Returns

Effective September 1, 2026, FREE US shipping available on all orders $20 and over, with a $4.95 shipping charge on orders below $20

For over 20 years we've been able to offer free sitewide shipping in the USA, but with the latest massive postage rate hike, we are unable to do so on smaller value orders. Rate changes from USPS on July 12, 2026 erased ounce based pricing, so now a 2 ounce item ships at the same rate as a 2 lb one, in some cases almost double the cost. 

We know shipping charges are not a fun experience, so we will still offer free shipping on all orders over $20.00 USD. For orders below this value, a flat $4.95 shipping assistance charge will apply. In many cases our actual ship cost will be higher, but by collecting this amount we can continue to offer low prices on smaller items like connectors and pigtails.

We are in Florida and ship to: USA, Australia, Austria, Canada, France, Germany, Israel, Netherlands, the United Kingdom, and other countries (see full list in cart).

Local pickup available in Gainesville, FL

Expedited shipping orders placed before 3PM EST weekdays will ship that day. Standard shipping orders ship within 1-2 business days.

Sales tax: shipments shipped to states in which we are registered to collect tax will have appropriate tax added at checkout. Tax exempt forms can be sent to our support staff who can activate exemption status. 


Lost packages and insurance

Hawaii & International Shipping:

While Hawaii is not international, packages from our Florida location with free standard shipping may take up to a month. We suggest purchasing expedited air shipping for Hawaii (note batteries cannot be shipped by Air). International shipping options are visible in cart by using the shipping estimator. Transit times posted are estimates. International packages are subject to customs holds and duty payment may be required by your government on delivery. The cost of duty is not reimbursable. International shipping charges are not refundable in the event of a return.

Returns

See item description for product specific return policies, and return policies vary by item.

Bulk/High Value Order Returns

Due to the labor required to package and ship bulk orders, as well as cost and stock issues involved in replenishing items, bulk orders of 5 pieces or more are not returnable unless the equipment is defective or mis-advertised, or a return period is pre-negotiated. For non-defective returns over $500, a restocking fee may be deducted from the refund to cover bank or card processing fees.

Backorder/Preorder

Items on back order or pre-order will ship as estimated on the item page. You can cancel an order any time up until shipment. Orders with expedited shipping will arrive in the advertised time after the order ships, not after the order is placed.

Cancellations

If you want to cancel an order, please email or call us at (352) 372-9902. If your item has not been shipped, we will cancel the order and provide a full refund.