I made this amazing battery pack using 18650 cells, performing about 3X better than a LiPo battery of roughly the same weight ...

Tired of condensation wrecking your shed tools or greenhouse gear? I built a no-frills ESP32 + DHT22 node that wakes every 15 minutes, grabs temp/humidity data, beams it over Wi-Fi, and sleeps—running ...

The Rekon3 is all about simplicity and convenience! This tiny quad is designed around a single, standard 18650 Lithium-Ion cell. You insert the battery just like you would in a tv remote and ...

Sourcemore sent this Geekvape Aegis Force pod kit over for review, and I’ve been having a blast on it this week. GeekVape release stuff all the time and I missed this one at the tail end of last year ...

Boston Scientific announced multiple recalls but has said its battery issues were limited. One internal test in 2025 found ...

There has been quite a bit of news recently about the  Battle Born LiFePO4 (LFP) batteries and how they are dying in droves ...

Skepticism grows around Donut Lab’s “impossible” battery as experts debate capacitor-like behavior and scarce independent test data.

Battery life hasn’t exactly been a strong point for foldables so far, but that might be starting to shift. A recent comparison test gives a clearer idea of where things stand right now. The test comes ...

Finnish startup Donut Lab has just released the third independent test of its solid-state ...

Building a battery pack from 18650 cells traditionally requires patience, a spot welder, and a supply of nickel strip. But ...

Earlier this year, Finnish startup Donut Lab grabbed headlines after claiming it had developed the first production-ready solid-state EV battery capable of charging in about five minutes. The ...

iPhone 17 Battery Test: Real-World Results Challenge Apple’s Big Claims Your email has been sent When Apple unveiled the iPhone 17 lineup, it talked up major battery gains. But a side-by-side test ...