Articles and Resources
Check out our guides and thoughts on DIY battery building. We will update this page as often as we can with new content, guides, and news.
Converting Watt Hours to Amp hours
Battery pack capacity is measured in either watt-hours or amp-hours. Some people prefer to use Wh while others prefer to use Ah. If you have a pack that is in Wh it's important to know how to take Wh and convert it to Ah, the good news is it's just a simple formula which we go into depth on here.
How To Calculate 18650 Battery Run Time
Learning how to calculate run time on any battery or cell is crucial knowledge to have. Learning and understanding these formulas give a solid foundation for understanding battery capacity. Once you understand the capacity of a battery or cell its very easy to figure out the run time it will have on a given load.
Can I Connect A Solar Panel Directly to A Battery?
Setting up a solar system for the first time comes with a lot of questions and things to figure out. One of the most common is whether can you charge a battery directly from a solar panel. Well, the short answer is NO but you can do other things with power coming directly off a solar panel.
How Do You Check Of A Battery Pack With A Multimeter?
If you only have a handful of cells or packs to test learning how to test IR with a multimeter can come in handy. It's a pretty straightforward and simple process to do so. However, if you need to test in large quantities we highly recommend buying a dedicated IR tester.
How Do You Calculate Which BMS for LiFePO4?
Picking the best-suited BMS for any battery build can be a little confusing. For larger-sized battery packs like those used in DIY powerwalls, this can get more complicated due to higher amperage requirements. We lay out in this article all the major considerations to help you pick the right BMS the first time.
Which Battery Chemistry Is Best?
The two main lithium chemistries of choice are NMC and LFP. Determining which is best really comes down to what your application is. In this article, we go over which is best in our opinion and in what application each excels at.
What is Stronger Than 18650?
Picking the strongest cells to meet very high current demands can be a complex task. You have to factor in chemistry and cell format when picking. These factors will allow you to make sure the choice will work best for your build. We break this all down within this article.
What is a 38120 Battery
38120 Cells known as Headway cells are known for there extremely high levels of current carrying capacity as well as their ease of use. It's common to see these used in car audio systems and golf carts where current demand is high. Learn more about these awesome cells in this article!
What Is The Minimum & Maximum Voltage Range For 18650?
Understanding the voltage range of a 18650 cell is crucial in learning how to build battery packs. Since lithium batteries have a rather wide working voltage range this is increased when putting multiples of cells in series. Having a good understanding of this working voltage range will help figure out the working voltage rang of a battery pack.