Публикации от Нурану

How to Check 18650 Battery Health in 2025

Lithium-ion 18650 batteries are extremely common these days. You can find them powering laptops, cordless power tools, electric vehicles, flashlights, vapes, and more. But over time, these batteries slowly lose capacity and efficiency. And improper handling or storage can cause them to fail unexpectedly. That’s why it’s so important to check 18650 battery health. Testing […]

How to Check 18650 Battery Capacity

Knowing the true capacity of your 18650 lithium-ion batteries is crucial. After all, the performance and run-time of your device depends on it. In this handy guide, as a professional 18650 battery manufacturer, I’ll walk you through the most accurate ways to test 18650 capacity. From using capacity testers to load testing with a multimeter, […]

How to Calculate 18650 Battery Capacity

Knowing the capacity of an 18650 lithium-ion battery is crucial for properly powering devices and effectively managing multi-cell battery packs. But determining capacity takes a bit more thought than reading the label on an 18650. In this comprehensive guide, I’ll walk through several key methods for accurately calculating 18650 capacity. An 18650 battery’s capacity indicates […]

Are Unprotected 18650 Batteries Safe?

Lithium-ion 18650 batteries power many of our devices today, from flashlights and vapes to power tools and even electric vehicles. Their high energy density makes them a top choice for portable power, but these batteries also come with safety considerations. In particular, the distinction between protected and unprotected 18650s leads many users to ask: are […]

Can You Charge 18650 Batteries with USB?

Lithium-ion 18650 batteries have become incredibly popular over the last few years. Thanks to their high capacity and energy density, 18650s are used to power everything from laptops and power tools to electric vehicles. But with their rise in popularity comes more questions from consumers. One of the most common is: Can you charge 18650 […]

Can You Mix 18650 Batteries? (The Complete Guide)

Lithium-ion 18650 batteries are incredibly versatile. You can find these cylindrical power cells in everything from laptops to power tools. But when it comes to piecing together a custom battery pack, a common question comes up: Can you mix 18650 batteries? The short answer is yes, you can combine different 18650 batteries. However, there are […]

Can You Solder 18650 Batteries? The Pros, Cons, and Safety Tips

Can you solder 18650 batteries? Well, you technically can. But should you? That’s a whole different question. In this detailed guide, as a professional 18650 battery manufacturer, I’ll cover everything you need to know about soldering 18650 lithium-ion batteries. You’ll learn the pros and cons, safety precautions, tips for minimizing damage, and more. Can You […]

Do 18650 Batteries Have Protection?

Lithium-ion 18650 batteries have become immensely popular among consumers thanks to their high capacity and compact size. However, these batteries can be dangerous if mishandled or used improperly. This brings up an important question – do 18650 batteries offer any built-in protection? Or do we need to take special precautions while using them? In this […]

Are 21700 Batteries Better Than 18650?

With battery technology continuously improving, 21700 lithium-ion batteries have emerged as a new player, sparking plenty of comparisons to the tried-and-true 18650 battery. So when it comes to 18650 vs 21700, which one reigns supreme? When looking at the 18650 vs 21700 debate, it’s clear that each battery format has its benefits depending on your […]