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Dead Battery or Device Failure? How to Find the Cause
Think your device is broken? Learn how to tell if the problem comes from battery aging or hardware failure before replacing your electronics.
Ufine
2026/09/22
Why iPhone Duo Uses Two Batteries: The Engineering Behind Foldable Phone Power
Why do foldable phones need two batteries? Explore the engineering challenges behind iPhone Duo’s dual-battery architecture and future battery trends.
Ufine
2026/09/21
Building an ESP32 Robot Dog with a Custom Lithium Battery
See how a maker combines 3D printing, ESP32 control, and a custom lithium pack to create a powerful and reliable robotic companion.
Ufine
2026/09/20
