If you have cells already and are in the process of building a pack, use this tool to balance the pack into even series groups based on cell capacity and IR of each cell.

If you are in the beginning stages of building a pack and want to figure out what size pack you need to build for your intended application, this is the place for you.

If you like & use the tools that we are providing and content that we are writing, feel free to check out all of our product recommendations. We make a small commission when you buy these products, at no cost to you.

Want to join a community of DIY builders and tinkerers? We started a Facebook group for people to ask questions, show off what they're working on, and just connect with one another. Feel free to join us!

Feel free to visit this link to learn more about us. This includes why we are doing what we're doing, how we got into 18650s, and what our goals are with Cell Saviors.

If you want to stay in the loop on what we've recently done, and what we are planning for in the near future, visit this link. We keep this up-to-date whenever we make changes to the tools suite.

Here is where you'll find our guides centered around various aspects of the DIY battery world. You can also find relevant news about Cell Saviors here.