Articles & 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.

Differences Between 18650 vs 38120

Differences Between 18650 vs 38120

If you are looking to start on a new build you have probably came across 38120 cells they are different from 18650 cells in more than just size. They each have an ideal use case so it makes it pretty easy to pick which would be best for your build. We go over those differences and more in this article.

Posted: Tue Jan 16 2024
Best Battery Pack Capacity Testers

Best Battery Pack Capacity Testers

When buying new cells for a DIY powerwall or after you finish building a new battery pack, being able to test capacity is crucial in confirming your build quality. Knowing the capacity to ensure you are getting what you paid for is also helpful. Having a good capacity tester is crucial and we go over them here.

Posted: Wed Jan 10 2024
Nominal Voltage

Nominal Voltage

Understanding nominal voltage and its importance when building, using, or buying a battery pack is crucial. This figure helps to interpret the voltage range of a battery pack or cell into a single number, which helps to simplify things. We go over nominal voltage in detail in this article and also touch on nominal voltage by common cell chemistries.

Posted: Sun Dec 31 2023
Disadvantages of Pouch Lithium Battery Cells

Disadvantages of Pouch Lithium Battery Cells

When building a battery pack choosing the best cell format often leads to cylindrical vs pouch cells. Each has its pros and cons to assess before choosing which will be used. One of the biggest questions is what are the main drawbacks of pouch-based LiPo cells. We go over that here!

Posted: Tue Nov 14 2023
What Are The Safest Lithium Battery Cells?

What Are The Safest Lithium Battery Cells?

When building a battery pack safety is almost always the first thing to address. In this article, we go over the safety battery cell by chemistry and the considerations to decide which is right for your build. There are some trade-offs when it comes to making this decision so knowing all the factors makes the choice much easier.

Posted: Wed Nov 01 2023
How Do You Size A Portable Power Station?

How Do You Size A Portable Power Station?

Sizing a portable power station is important to make sure the one you purchase meets your needs. There are a few things to consider to make sure you pick right the first time. Follow along with our guide here to help make your power station purchase a success.

Posted: Fri Oct 27 2023
Is LFP More Expensive Than NMC Batteries?

Is LFP More Expensive Than NMC Batteries?

When considering using LFP or NMC chemistry for a project the price per kilowatt is a big factor in what you choose. For most cases, space and size concerns may come into play which will dictate which you choose over price alone. However sometimes the main factor is price, we will go over what prices we are seeing in this article.

Posted: Wed Oct 25 2023
What Is The Most Accurate Way To Test A Battery?

What Is The Most Accurate Way To Test A Battery?

There are many different ways to test a battery pack's health. I often get asked the question of which one is the best or which is most accurate. Well, simply the most accurate can be defined by one type of testing. Where the most accurate encompasses a few different tests to preform.

Posted: Mon Oct 16 2023
Do You Need a Special Charger For a Lithium Battery?

Do You Need a Special Charger For a Lithium Battery?

People often ask "can I charge a lithium battery with a car battery charger". Questions like this to some are common sense as to the answer being NO! We go over why you cant just use any old charger to charge a lithium battery in this article.

Posted: Fri Oct 13 2023
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