World Wide Shipping

We got you covered

Online Payment

Stripe & Paypal

Support 24

Break the lines wherever

Return of purchase

30 days return
Latest tech releases

Featured Products

Heart Rate Monitor

Rated 0 out of 5
$16.20
Bidding done only in Euro

Used Cell LifePo4 230 Ah 98% SOC

Rated 0 out of 5
Original price was: $61.45.Current price is: $50.76.piece
UsedĀ  Life Po4 230Ah Baterry
  • LiFePO4 230Ah battery belongs to the GB 54173 series of dimension format
  • Upgrade from LFP205Ah and higher energy density under similar dimension with LFP205Ah
  • 230AhĀ LiFePO4 CellsĀ series supports 1C charge and discharge rate.
  • 4000 times outstanding cycle life with maximum reliability.
  • Support cells with screw terminals and nut terminals
  • LiFePO4 230AhĀ battery is suitable for material handling equipment, commercial vehicles etcetera.
 

JKBMS Smart Active Balance

Rated 0 out of 5
$162.00
Function Characteristics: ? Active Balance Function ? LED status indication ? App Remote Operation ? OVP and OCP ? Support PC Program ? Low Power Consumption ? Screen Display ? Support RS485\CAN\RS232 ? High Precision Voltage Acquisition(?20mV) ? Battery Capacity Estimation ? High Precision Current Acquisition(?2%@FS) ? Precise Time Log Record ? Isolated power circuit ? Short circuit protection ? 4 NTC detection protection ? MOS Temperature Detection Protection

Off Grid Solar Inverter GROWATT SPF 3500 ES

Rated 0 out of 5
$761.40
This is a multifunctional off grid solar inverter, integrated with a MPPT solar charge controller, a high frequency pure sine wave inverter and a UPS function module in one machine, wich is perfect for off grid backup power and self-consumption applications. This inverter can work with or without batteries.

Raspberry-Pi 4 Starter KIT-WHITE-4GB – MegaCnC Preinstalled

Rated 0 out of 5
$124.20
Ā Raspberry Pi Starter KitĀ 
Kit includes:
  • Raspberry Pi 4 Model B
  • with 4GB RAM
  • 5.1V, 3A power supply
  • 16GB Micro SD card
  • MegaCnC software installed
  • 1M Micro HDMI to HDMI cable
  • two-piece heat sink kit
  • molded enclosure (white)
  • getting started booklet

LiFePo4 EVE 3.2V 280Ah cell, Grade A.

Rated 0 out of 5
Original price was: $118.80.Current price is: $91.80.piece
  • Minimum Voltage: 2.6 V
  • Nominal Voltage: 3.2 V
  • Maximum Voltage: 3.65 V
-16%New
48v Metal Box Kit lifepo4
48V kit lifepo4

48v 280ah Metal Box Kit

Rated 0 out of 5
$550.80$2 019.60piece
Elevate your energy storage solutions with our 48V Battery Assembly Kit, tailored for 16 LifePo4 cells ranging from 280Ah to 302Ah. This comprehensive package includes a high-capacity 200A BMS for superior power management, alongside essential assembly components like cables and screws. Ideal for building robust and efficient 48V battery systems for a variety of applications. Application : Home Energy Storage Battery  
-15%New
12V Battery kit Lifepo4 280Ah - 302Ah
12V Battery kit content

12v 280ah Metal Box Kit

Rated 0 out of 5
$226.80$594.00piece
This all-in-one kit includes a durable full metal box to protect and cool your cells, ensuring longevity and efficiency. High-quality M8 Terminal Connectors provide secure, low-resistance connections, while the state-of-the-art JK BMS with 1A Balance meticulously manages cell health, enhancing battery life and performance.
Megacell Charger with QR Codes
Megacell Charger PRO Hobby

Fast & Versatile Testing

Recovered Cells

2800 to 3000 mAh Recovered Cells

Newest electronics

Top Selling Products

Our Latest Articles

A Guide to Repairing a Lithium Iron Phosphate Motorcycle Battery

Ā  Ā  Welcome to the Cell Doctor channel. In todayā€™s video, we will explore the process of repairing a lithium iron phosphate (LiFePO4) motorcycle battery that is currently non-functional. A friend of mine reported that this battery was short-circuited. Although it still shows some indication of life with two lines, the voltage measurement reads 9.7 volts. We need to determine if it can receive any power.

Ā  Initial Diagnosis

Ā Firstly, we checked the voltage, confirming it reads 9.7 volts. However, the battery does not draw any current, indicating an issue. To understand the problem, we need to open the battery and inspect its internal components. Typically, these batteries contain a Battery Management System (BMS), and the fault could either lie within the BMS or the cells themselves.

Ā  Opening the Battery

Ā Opening the battery was straightforward. Upon removing the lid, we observed the balancing leads. The board is marked SMT H04 S LED LDVD O, indicating that it includes an LED board and balancing wires. We measured the voltage on these wires to assess the condition of the cells. The cells are encapsulated in silicon, which makes access difficult. However, we attempted to charge the cells through the balancing leads to avoid complete disassembly.

Ā  Cell Voltage Inspection

Ā The voltage readings showed 3.3 volts for one cell and 0.2 volts for another, indicating that one of the cells is dead. Specifically, cell number two is non-functional, while the other cells seem to be in good condition. We attempted to charge the dead cell by setting the bench power supply to 3.6 volts and connecting the leads. Unfortunately, the cell did not draw any power, confirming it is indeed dead.

Ā  Deeper Investigation

Ā Given the dead cell, we needed to delve deeper. Carefully cutting the silicon around the cells, we ensured not to puncture the good cells to prevent any fire hazard. Once the silicon was sufficiently removed, we extracted the battery. With the cells exposed, we found that they are spot-welded together, complicating the repair process.

Ā  Identifying the Fault

Further inspection revealed that cell number two had disconnected from its neighboring cell, causing the battery to fail. This disconnection needed to be repaired by soldering the cells back together.

Ā  Repairing the Connection

Ā Soldering these types of cells can be tricky, but we managed to make a good connection on half of the tab. After ensuring the connection was secure, we reassembled the battery and isolated the terminals with Kapton tape. We then reconnected the LED board to check for voltage. The state of charge indicator showed full, indicating the repair was successful.

Ā  Final Testing

Ā We conducted a final series of tests to ensure the battery was functional. The voltage now read 13.3 volts, and the battery accepted a charge of 3 amps. Additionally, we performed a discharge test at 5 amps, which the battery handled without significant voltage drop. The ultimate test was placing the battery back in the motorcycle to confirm it starts the engine.

Ā  Conclusion

Ā This video tutorial demonstrated the process of repairing a lithium iron phosphate battery with a broken cell connection. These batteries, utilizing pouch cells, are common in high-current applications but are more challenging to repair than cylindrical cells. Nonetheless, the repair was successful.

Read more

Welcome to the Cell Doctor Channel: Mega CNC Software Update

Ā  Ā  Ā Hey everyone, welcome to a new video on the Cell Doctor Channel. Today, we’re diving into the latest updates for Mega CNC, the software I’ve developed for controlling the MegaCell Chargers. I’ve been working on some new features that many of you have requested, so let’s take a look at what’s changed since the last video.

Development and Deployment

Ā  Ā I’ve been replacing placeholders on the page with real data. The total sales displayed are from testing on my development machine, which is running on Windows. Although developing and submitting changes is easier on Windows, deployment works best on Ubuntu and the Raspberry Pi image. I’ll be updating this image in the coming days for those who need it.

Updating Procedure

Ā  Ā If you already have sales data in your database, I recommend following the update procedure described on the Git page. You need to log into your Raspberry Pi or Ubuntu machine via SSH. The default username and password for the Raspberry Pi image is MCCadmin and MCCisbest, respectively. You can change these if you wish. To update, navigate to Mega CNC, perform a git pull, and then sudo docker-compose down. Rebuild and make the necessary database migrations.

Database Changes

Ā  I’ve made several changes to the database:

  • A new entry called “database” now loads all cells by default.
  • You can filter cells based on the project you’re working on.
  • The database displays detailed information for each cell, including capacity, ESR, number of cycles, availability, and various temperature metrics during charging and discharging.

You can also manually add cells to the database, specifying details such as project, device type, voltage, capacity, ESR, and other parameters.

Battery Management

Ā  The main purpose of this software and the MegaCell Charger is to manage and utilize battery cells efficiently. Here’s a rundown of the new battery management features:

  1. Creating and Managing Batteries: You can create new batteries by specifying the series and parallel configuration. Once created, the software helps you manage these batteries efficiently.

  2. Scanning and Assigning Cells: Using a QR code scanner, you can easily scan and assign cells to a battery pack. The software automatically pulls the cell data from the database and optimally assigns cells to ensure a balanced pack.

  3. Balancing Cells: The software calculates the best combination of cells to create a balanced pack, minimizing the difference in capacity across strings of cells.

Advanced Features

Ā  For those familiar with building battery packs, the software offers advanced features like:

  • Swapping Cells: You can swap cells within a pack if needed. However, this feature is still under development, so it’s best to use it cautiously.
  • Detailed Data Display: The software provides detailed information about each cell, including graphs and temperature data.
  • Auto-Selection and Assignment: You can auto-select cells for a pack based on specific criteria, making the process quicker and more efficient.

Final Thoughts

Ā  Ā Thank you for following this project. If you have any questions or suggestions for new features, don’t hesitate to contact me. Check out the latest products and a detailed presentation page on our website for more information about the MegaCell Charger project.

Stay tuned for the next video, and happy battery building!

All the best, The Cell Doctor

Read more

Comprehensive Guide to Downloading and Installing the Mega CNC Raspberry Pi Image

Ā  Ā  Ā  Ā Welcome to our tutorial on setting up the Mega CNC Raspberry Pi image.

Ā  This guide is designed to help you navigate the installation process smoothly, covering the prerequisites, downloading the image, and setting up your hardware for optimal performance.

Ā  Step-by-Step Installation Instructions
Ā  1. Preparing for Download

Ā Visit the Website: Start by navigating to decyclepower.com. Once there, enter the software section.
Ā Selecting the Image: Locate and select the Mega CNC Raspberry Pi image. A nominal fee is associated with the image to cover hosting costs on Amazon S3, ensuring a reliable and fast downloading experience.
Ā Understanding Hosting: The image is hosted on Amazon S3 to avoid the potential for account suspension that could occur with other cloud services due to excessive downloads.
Ā  2. Downloading the Image

Ā Payment and Access: After completing the payment, you will receive a link to download the file, which is approximately 2 GB in size.
Using the Right Tools: Ensure you have a Raspberry Pi image writer software installed on your Windows machine. This software is essential for transferring the image to an SD card.
Ā  3. Preparing the SD Card

Ā Card Requirements: You will need an SD card with at least 16 GB of space, as the image is built for this capacity.
Ā Writing the Image: Open your image writer software, select the Raspberry Pi device you are using (e.g., Raspberry Pi 4), and choose the option to use a custom image. Locate the downloaded zip file, unzip it, and select the image file for writing.
Initiating the Write: Insert the SD card into your SD card reader. In the image writer software, select the SD card as the destination and start the writing process.
Ā  Ā  4. Setting Up the Hardware

Ā Insert the SD Card: Once the writing process is complete, insert the SD card into your Raspberry Pi.
Ā Power and Connectivity: Connect your Raspberry Pi to a power source capable of delivering up to 3 amps.Ā  Connect an Ethernet cable for network access.
Ā Initial Boot: Power on the Raspberry Pi. The first boot may take a few minutes as the device initializes and configures itself based on the new image.
Ā  5. Configuring the Software

Ā Accessing the Device: Once the Raspberry Pi is up and running, locate its IP address from your router’s administration page to access it from your network.
Ā SSH and Updates: Log in via SSH to check for updates or configure additional settings. Run any necessary commands to update the system or software as detailed on the GitHub repository if you are customizing further.
Ā  6. Final Adjustments

Ā Verification: After the image is written, you can verify it through the image writer software to ensure no data was corrupted during the transfer.
Ā Software Installation: Install any necessary software like the qz tray for connecting to printers or other peripherals, which should be installed on the computer from which you are accessing the Raspberry Pi.
Ā  Conclusion:
By following these steps, you will have successfully installed the Mega CNC image on your Raspberry Pi, setting up a robust platform for your projects. Should you encounter any issues or have questions, the support team at decyclepower.com is available via chat or contact form to assist you promptly. Thank you for choosing this guide, and we hope it enhances your experience with the Mega CNC system.

Read more

Reviving a Junior Dirt Bike: 48V 13S 6P Battery Rebuild and Water Damage Repair

In this detailed tutorial, we demonstrate the process of rebuilding a 13S 6P lithium battery pack for a junior dirt bike that sustained water damage. Here’s what you can expect from the video:

Ā 

  • Battery Rebuild: Watch as we replace all the damaged cells with ones salvaged from other battery packs.
  • Time Efficient: The entire rebuild process took approximately three hours.
  • Cell Salvaging: Out of 65 original cells, we managed to salvage 64 and used them to construct a new pack by combining them with additional used cells.
  • Technology Insights: Learn about the Mega CNC for matching battery strings and the Megacell Charger for rigorous cell testing.

Ā Ā 

Some of our newest products

Read more

Major Firmware Update Announcement: Introducing Compatibility with Mega CNC

We are thrilled to announce a significant firmware upgrade that will enhance the performance and capabilities of your Megacell chargers. This upgrade is a part of our continuous effort to provide you with the best possible experience and to ensure that our products meet your evolving needs.

Ā 

Introducing Compatibility with Mega CNC

Our latest firmware has been designed to work seamlessly with the open-source Mega Command and Control (Mega CNC) software. This integration brings a host of benefits, especially when Mega CNC is installed on a Raspberry Pi 4. Not only does this setup allow for a separation from your desktop machine, but it also enables your system to run 24/7 with minimal power consumption. To facilitate this, we are offering ready-configured kits, which include a Raspberry Pi 4 with Mega CNC pre-installed, available for purchase on our website:Ā Raspberry Pi 4 Starter Kit with MegaCNC Pre-installed.

Ā 

Mandatory Firmware Update for Mega CNC and Megacell Regular

Please note that this firmware update is mandatory for those planning to use the Mega CNC software with the old version of mega cell charger. It is compatible with all Megacell chargers (excluding 3D-Printed version). We are aware that the version with 3D Printed shrouds may require additional adjustments for compatibility with the new firmware. We are keen to understand if there is a demand for this and would appreciate your feedback if you are using such models and are interested in the upgrade.

Ā 

Support and Feedback

We are committed to supporting you through this transition. For more details about the firmware upgrade and instructions on how to implement it, please visit our GitHub page:Ā Mega CNC Firmware Update

Your support and contributions are invaluable to us. If you wish to support our ongoing development and improvements, donations are welcome via Stripe (Donate via Stripe) or PayPal (Donate via PayPal).

Ā 

We thank you for your continued support and are confident that you will find this firmware update to be a significant improvement to your Megacell charging setup. Should you have any questions or require further assistance, please do not hesitate to contact us.

Ā 

Ā 

Ā 

Our most wanted products…

Read more
Shopping cart
Sign in

No account yet?

Create an Account