Are you a maker? Do you enjoy building things yourself? Do you have a project that needs lithium-ion batteries for energy storage?
We created a solution just for you! Our 18650 battery connectors make it easy to build your own DIY lithium-ion batteries of any size, voltage, capacity and power level that you need to fit your project!
18650 cells are one of the most prevalent types of lithium-ion battery cells. They are available from dozens of companies in hundreds of varieties. This makes them an ideal cell for custom battery builders.
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However, the most commonly used method of joining them - spot welding - requires expensive tools that most hobbyists don't have. That's why we created the Vruzend caps - to help you build the perfect battery for you!
Unlike spot welding or soldering, Vruzend caps allow you to assemble and disassemble a battery pack easily. This is helpful for modular applications where your battery size or capacity may change over time, or to allow you to swap out batteries over time as they inevitably weaken. You're no longer stuck with tossing an entire battery because a single cell went bad.
Our system uses an interlocking dovetail design to securely join the caps together like children's toy blocks. Once the caps are connected, you simply insert your battery cells. Now each cell has a threaded post terminal allowing for easy and customizable connections.
We have been testing our current version (V1.5) of the Vruzend DIY battery building kit all over the world and with great responses. However, the power ability of the kit was somewhat lower in the initial version. We have been working hard on a new version of the kit to allow higher power capabilities and are excited to announce that it is finally here! The Vruzend V2.0 kit works just like the V1.5 kit that has been tried and tested, but uses pure copper bus bars and copper alloy spring contacts to allow much higher power levels, as high as 20 A continuous per cell!
Improvements made in our most recent kits include:
- Superior polymer for more resilient plastic caps
- Elongated terminal posts to allow more busbars
- Spring contact includes stopper for more even insertion
- Improved mold tolerances makes assembly even easier
The copper based components in the new V2.0 kits are nickel coated, taking advantage of the high conductivity of pure copper and the corrosion resistance of pure nickel.
The Vruzend team has been working for months to bring our V2.0 kit to the market, and we fully expect to begin shipping V2.0 kits in May for our early bird rewards and June for our secondary rewards (once the early bird rewards are sold out). The first group of V2.0 kits will only be available here on Kickstarter, and then will be available on www.Vruzend.com afterwards. Make sure to take advantage of the special kickstarter pricing now though, as we won't be able to offer the kits for this price for long!
We are offering both kits, our existing Vruzend V1.5 kit and the new Vruzend V2.0 kit as rewards for backing our Kickstarter campaign. You can find details for each reward level and the option to pledge for that reward on the right-hand side of this screen.
The contents of each kit include:
V1.5 kit (includes enough for 52 cells):
- 104 caps with SS spring contacts
- 104 SS nuts
- 130 SS bus bars
- 6 brass wire clamps
- 6 zip ties
Note: The V1.5 kit is rated at 3.5A continuous and 7A peak per cell
V2.0 kit (enough for 30 cells):
- 60 caps with nickel-plated copper alloy spring contacts
- 60 nickel-plated copper alloy nuts
- 90 nickel-plated pure copper bus bars
- 4 nickel-plated copper alloy clamps
- 4 zip ties
Note: the V2.0 kit is rated at 20A continuous and 25A peak per cell
Vruzend is also the proud sponsor of multiple electric and solar-electric race car teams, including Team Sunergy from Appalachian State University! Pictured below with their award-winning solar race car, Team Sunergy is using the Vruzend 2.0 kit in the battery of their next-generation solar race car. Pictured below is the DTU Okami racing team developing an electric racing motorcycle, and last but not least, the students on the WWHS EV Team are the current defending champions of the Google Gravity Games and are also using Vruzend battery packs!
So far we've shipped our existing version of the Vruzend kits to over 100 countries around the world. Below are just a few of the countless user-submitted photos we've received back from successful DIY battery projects around the globe.
If you aren't already experienced with battery building, we highly recommend doing some research and preparing for your first DIY battery. The best resource to teach you how to build custom DIY lithium-ion batteries is Micah Toll's #1 bestseller, DIY Lithium Batteries, available on Amazon in both paperback and Kindle e-book formats.
To see an example of a battery being assembled with the V2.0 battery building kit, check out this video: https://youtu.be/d2FCvW6S6Wk
And to discuss Vruzend DIY battery building kits more, join the facebook group here: https://www.facebook.com/groups/Vruzend/
Risks and challenges
As with any manufacturing project, there is a chance that the manufacturing process will take longer than expected and delay our schedule. However, we have taken every effort to ensure that we will remain on schedule.
We waited to begin our Kickstarter campaign until we were 90% prepared for production, instead of starting much earlier like many other campaigns have. This meant we couldn't start taking pre-orders as quickly as we'd like, but that we have only a small amount of final work to finish before we can begin final production of your battery-building kits!Learn about accountability on Kickstarter
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