Battery Select Page
About Battery
Circuit: DIY Battery Tester
A blast from the Elektor archives: this clever 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load — even below 1 V. Built from standard components and no fragile meters, it’s a timeless design that still inspires practical, low-cost testing today.
Your own personal page
You can create your own personal page, where you can read the latest articles on your favourit subjects.
Designing energy-efficient embedded systems is challenging, and Edge AI adds to the challenge. Balancing intelligent functionality with effi...
Thousands of engineers, students, and makers trust Elektor for inspiration, technical depth, and hands-on learning. Don’t just follow the el...
The dynamic compression of audio signals is important for reducing signal peaks to avoid saturation of the output signal. The circuit presen...
