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.
LFP vs. NMC: The Real “Lithium-ion vs. Lithium-ion” Battery Comparison
Many articles frame “LFP vs. lithium-ion” incorrectly—LFP is lithium-ion. The real matchup is LFP vs. NMC. Here’s how they compare on energy density, cycle life, safety, cost, cold-weather performance, and charging speed.
Lithium-Ion Battery Fires: Causes, Prevention, and What to Do if One Happens
Lithium-ion batteries power our devices, bikes, and cars—but when they fail, the results can be serious. Here’s how to minimize risk, spot warning signs, and respond safely in an emergency.
Lithium-Ion Battery C-Rate Explained: Charge & Discharge Limits, Heat, and Safety
C-rate tells you how hard you can charge or discharge a lithium-ion battery relative to its size—but it hides key factors like resistance and cooling. We explain C-rate basics, real-world limits, and how to avoid overheating your cells.
Lithium-Ion Batteries: Uses, Safety, and Fire Prevention Guide
Lithium-ion batteries power almost every portable device today—from phones to e-bikes. They’re safe when handled correctly, but abuse or defects can cause fires. Learn about their uses, safety tips, differences from lithium metal, and how to avoid dangerous mistakes.
Why Lithium-Ion Batteries Have a Negative Temperature Coefficient
Most materials have higher resistance when hot, but lithium-ion batteries are different. Their internal resistance actually drops as temperature rises, improving performance — but also posing risks if limits are exceeded.
How Lithium-Ion Battery Charging Really Works: Inside the Cell, Charging Phases, and SEI Formation
We break down how lithium-ion battery charging works—from cathode/anode reactions to constant current and constant voltage stages, SEI layer formation, and best charging practices for long life and safety
High-Power Buck Converter Test: Charging Batteries, Dummy Loads, and a 650-Watt Stress Run
We push a constant current buck converter to its limits—charging a 7S NMC pack, powering dummy loads, and sustaining over 650 watts. See real data on voltage drop, efficiency, and temperature stability.
Copper vs Nickel in Lithium-Ion Battery Series Conductors: Real-World Voltage Drop & Resistance Tests
We compare nickel and copper as lithium-ion battery series conductors using real-world voltage drop and resistance tests. See how adding copper dramatically lowers resistance and improves performance.
How Lithium Battery Chargers Work: DIY Tips, CC-CV Basics & Safety Guide
From EVs to solar power stations, lithium battery chargers are everywhere. This guide explains how they work, why constant current–constant voltage (CC-CV) is critical, and how to build one yourself. Perfect for tech hobbyists and battery pros.