Are you rushing, or are you dragging? You’ll know for sure with these essential time-keeping devices from Boss, Korg, Wittner, and more The humble metronome is, at once, one of the most useful and ...

Apple phone losing charge too quickly? Try these iPhone battery hacks to make sure it lasts when you need it most. David Lumb is a mobile reporter covering how on-the-go gadgets like phones ...

of lithium batteries using LED bars. Perfect for salvaging old cells or DIY power banks! Key Features: - Real-time monitoring via BQ27441 fuel gauge IC - Dual LED bars for SoC/SoH (WS2812B NeoPixels) ...